MASTER Net MASTER Database: GRB210308.28 page

Please use the reference to MASTER DataBase as Lipunov et al., 2010, MASTER Robotic Net, Advances in Astronomy, vol. 2010, p.30L

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GRB coord: ErrorBox (deg): Sys Error (deg):
Sattel : Trigger: Notice:
GRB_Name: trignum: Nights after: FullSky


Name SWIFT GRB210308.28
Trignum 1036227
Trigger time 2021-03-08 06:37:56.85
Notice time 2021-03-08 06:38:22.289344
Coord, eb (04h 28m 21.12s , +37d 24m 39.6s) , 0.05
Max dist: 1 sigma 3 sigma
AGN candidates: Milliquas
r90wise
wiseXgaia
BL Lac candidates: 1 Sigma
3 Sigma

MASTER observatories and transients from them in error-field
Kislovodsk Transients (Undef)
(All)
(Yes)
Trans. Difference (Undef)
(All)
(Yes)
(Gal)
Amur Transients (Undef)
(All)
(Yes)
Trans. Difference (Undef)
(All)
(Yes)
(Gal)
Tunka Transients (Undef)
(All)
(Yes)
Trans. Difference (Undef)
(All)
(Yes)
(Gal)
OAFA Transients (Undef)
(All)
(Yes)
Trans. Difference (Undef)
(All)
(Yes)
(Gal)
IAC Transients (Undef)
(All)
(Yes)
Trans. Difference (Undef)
(All)
(Yes)
(Gal)
SAAO Transients (Undef)
(All)
(Yes)
Trans. Difference (Undef)
(All)
(Yes)
(Gal)
Tavrida Transients (Undef)
(All)
(Yes)
Trans. Difference (Undef)
(All)
(Yes)
(Gal)
OAGH Transients (Undef)
(All)
(Yes)
Trans. Difference (Undef)
(All)
(Yes)
(Gal)

You are viewing outdated information, relevant error box is here

All alerts for this trigger
id noticetime coord2000 satel errorbox type trigger seq trig_type links
1563674 2021-03-08 06:45:16.409645 04h 28m 17.76s +37d 26m 02.4s SWIFT 0.000111111 alert 1036227 2 81 alert
1563668 2021-03-08 06:40:22.862737 04h 28m 18.48s +37d 26m 06.0s SWIFT 0 alert 1036227 1 78 alert
1563666 2021-03-08 06:40:19.062949 04h 28m 18.48s +37d 26m 06.0s SWIFT 0.00169444 alert 1036227 4 69 alert
1563656 2021-03-08 06:39:55.198688 04h 28m 18.48s +37d 26m 06.0s SWIFT 0.00169444 alert 1036227 4 67 alert
1563625 2021-03-08 06:38:22.289344 04h 28m 21.12s +37d 24m 39.6s SWIFT 0.05 alert 1036227 7 61 alert

DAYS:

MASTER optical transients in this field
Will be published in GCN, ATEL

Synchronous WFC images
Distance datetime coord2000 observatory links
Errorbox center visibility at MASTER facilities
trigger notice notice+1hr now

2021-03-08 06:37:56 (JD 2459281.776343)

Siderial time 20.219708 h

Ra 04:28:21.12 Dec 37:24:39.60
( 67.088000d, 37.411000d)

Rise n/a

Transit n/a

Set n/a

Amur

Object: Altitude: 62.67 Azimuth: 285.06

Sun: Altitude: 22.81 Azimuth: 49.31

Moon: Altitude: -28.90 Azimuth: 84.68

Tunka

Object: Altitude: 47.33 Azimuth: 265.94

Sun: Altitude: 30.75 Azimuth: 23.52

Moon: Altitude: -14.40 Azimuth: 67.60

Kislovodsk

Object: Altitude: 8.21 Azimuth: 224.64

Sun: Altitude: 29.28 Azimuth: 312.23

Moon: Altitude: 18.59 Azimuth: 19.84

Tavrida

Object: Altitude: 4.87 Azimuth: 219.30

Sun: Altitude: 23.90 Azimuth: 304.77

Moon: Altitude: 19.30 Azimuth: 11.80

SAAO

Object: Altitude: -57.53 Azimuth: 249.91

Sun: Altitude: 26.05 Azimuth: 258.61

Moon: Altitude: 82.64 Azimuth: 186.43

IAC

Object: Altitude: -24.26 Azimuth: 181.81

Sun: Altitude: -10.63 Azimuth: 269.86

Moon: Altitude: 25.19 Azimuth: 321.73

Argentina

Object: Altitude: -48.36 Azimuth: 112.23

Sun: Altitude: -44.79 Azimuth: 319.20

Moon: Altitude: 12.08 Azimuth: 292.16

Mexico

Object: Altitude: 19.55 Azimuth: 122.60

Sun: Altitude: -61.00 Azimuth: 151.74

Moon: Altitude: -47.63 Azimuth: 274.23

Ural

Object: Altitude: 24.89 Azimuth: 238.97

Sun: Altitude: 25.21 Azimuth: 334.07

Moon: Altitude: 1.94 Azimuth: 33.77

Vostryakovo

Object: Altitude: 14.49 Azimuth: 223.10

Sun: Altitude: 19.22 Azimuth: 311.61

Moon: Altitude: 8.38 Azimuth: 14.70

Gal. latitude: -7.268982 Gal. longitude: 163.890935

Dist. to Sun: 83.900204

Dist. to Moon: 143.713442

Moon coord.: (287.394895 d, -25.066639 d)

Sun coord.: (348.611054 d, -4.894177 d)

Lunar disk: 0.265797

Lunar phase: 117.930875

Lunar bright limb: 81.792087

No SN in this field

2021-03-08 06:38:22 (JD 2459281.776644)

Siderial time 20.226950 h

Ra 04:28:21.12 Dec 37:24:39.60
( 67.088000d, 37.411000d)

Rise n/a

Transit n/a

Set n/a

Amur

Object: Altitude: 62.74 Azimuth: 285.18

Sun: Altitude: 22.76 Azimuth: 49.42

Moon: Altitude: -28.96 Azimuth: 84.76

Tunka

Object: Altitude: 47.39 Azimuth: 266.02

Sun: Altitude: 30.73 Azimuth: 23.64

Moon: Altitude: -14.46 Azimuth: 67.68

Kislovodsk

Object: Altitude: 8.27 Azimuth: 224.71

Sun: Altitude: 29.34 Azimuth: 312.33

Moon: Altitude: 18.56 Azimuth: 19.94

Tavrida

Object: Altitude: 4.92 Azimuth: 219.37

Sun: Altitude: 23.96 Azimuth: 304.87

Moon: Altitude: 19.29 Azimuth: 11.90

SAAO

Object: Altitude: -57.45 Azimuth: 249.90

Sun: Altitude: 26.14 Azimuth: 258.54

Moon: Altitude: 82.65 Azimuth: 185.69

IAC

Object: Altitude: -24.26 Azimuth: 181.91

Sun: Altitude: -10.53 Azimuth: 269.91

Moon: Altitude: 25.25 Azimuth: 321.81

Argentina

Object: Altitude: -48.45 Azimuth: 112.22

Sun: Altitude: -44.73 Azimuth: 319.07

Moon: Altitude: 12.16 Azimuth: 292.11

Mexico

Object: Altitude: 19.48 Azimuth: 122.63

Sun: Altitude: -61.04 Azimuth: 151.95

Moon: Altitude: -47.54 Azimuth: 274.28

Ural

Object: Altitude: 24.94 Azimuth: 239.05

Sun: Altitude: 25.24 Azimuth: 334.19

Moon: Altitude: 1.91 Azimuth: 33.85

Vostryakovo

Object: Altitude: 14.53 Azimuth: 223.18

Sun: Altitude: 19.26 Azimuth: 311.71

Moon: Altitude: 8.37 Azimuth: 14.80

Gal. latitude: -7.268982 Gal. longitude: 163.890935

Dist. to Sun: 83.899914

Dist. to Moon: 143.709828

Moon coord.: (287.399378 d, -25.066460 d)

Sun coord.: (348.611333 d, -4.894060 d)

Lunar disk: 0.265768

Lunar phase: 117.934622

Lunar bright limb: 81.789989

No SN in this field

2021-03-08 07:38:22 (JD 2459281.818310)

Siderial time 21.229688 h

Ra 04:28:21.12 Dec 37:24:39.60
( 67.088000d, 37.411000d)

Rise n/a

Transit n/a

Set n/a

Amur

Object: Altitude: 71.39 Azimuth: 306.74

Sun: Altitude: 14.83 Azimuth: 62.82

Moon: Altitude: -38.14 Azimuth: 95.94

Tunka

Object: Altitude: 56.67 Azimuth: 278.32

Sun: Altitude: 25.87 Azimuth: 39.72

Moon: Altitude: -22.95 Azimuth: 78.17

Kislovodsk

Object: Altitude: 16.49 Azimuth: 233.58

Sun: Altitude: 36.30 Azimuth: 328.11

Moon: Altitude: 13.96 Azimuth: 32.68

Tavrida

Object: Altitude: 12.35 Azimuth: 228.82

Sun: Altitude: 31.89 Azimuth: 319.24

Moon: Altitude: 16.05 Azimuth: 25.18

SAAO

Object: Altitude: -45.59 Azimuth: 247.63

Sun: Altitude: 38.26 Azimuth: 248.17

Moon: Altitude: 76.00 Azimuth: 118.14

IAC

Object: Altitude: -22.33 Azimuth: 194.73

Sun: Altitude: 2.66 Azimuth: 276.99

Moon: Altitude: 31.99 Azimuth: 334.57

Argentina

Object: Altitude: -60.36 Azimuth: 110.84

Sun: Altitude: -35.17 Azimuth: 304.01

Moon: Altitude: 23.74 Azimuth: 285.75

Mexico

Object: Altitude: 8.99 Azimuth: 128.52

Sun: Altitude: -63.77 Azimuth: 184.04

Moon: Altitude: -35.29 Azimuth: 280.32

Ural

Object: Altitude: 32.31 Azimuth: 249.76

Sun: Altitude: 27.72 Azimuth: 350.67

Moon: Altitude: -3.09 Azimuth: 45.92

Vostryakovo

Object: Altitude: 20.93 Azimuth: 233.77

Sun: Altitude: 24.85 Azimuth: 326.69

Moon: Altitude: 5.43 Azimuth: 27.61

Gal. latitude: -7.268982 Gal. longitude: 163.890935

Dist. to Sun: 83.859764

Dist. to Moon: 143.208810

Moon coord.: (288.019761 d, -25.040478 d)

Sun coord.: (348.649843 d, -4.877804 d)

Lunar disk: 0.261779

Lunar phase: 118.453259

Lunar bright limb: 81.499506

No SN in this field

2024-06-23 01:01:56 (JD 2460484.543009)

Siderial time 21.653295 h

Ra 04:28:21.12 Dec 37:24:39.60
( 67.088000d, 37.411000d)

Rise n/a

Transit n/a

Set n/a

Amur

Object: Altitude: 74.33 Azimuth: 320.74

Sun: Altitude: 50.58 Azimuth: 299.05

Moon: Altitude: -45.10 Azimuth: 100.39

Tunka

Object: Altitude: 60.52 Azimuth: 284.59

Sun: Altitude: 35.59 Azimuth: 276.82

Moon: Altitude: -29.80 Azimuth: 82.15

Kislovodsk

Object: Altitude: 20.26 Azimuth: 237.11

Sun: Altitude: -4.48 Azimuth: 231.16

Moon: Altitude: 8.28 Azimuth: 37.99

Tavrida

Object: Altitude: 15.85 Azimuth: 232.57

Sun: Altitude: -8.34 Azimuth: 224.68

Moon: Altitude: 10.92 Azimuth: 31.11

SAAO

Object: Altitude: -40.66 Azimuth: 246.19

Sun: Altitude: -57.04 Azimuth: 276.45

Moon: Altitude: 70.63 Azimuth: 98.49

IAC

Object: Altitude: -20.67 Azimuth: 199.85

Sun: Altitude: -38.25 Azimuth: 178.57

Moon: Altitude: 32.10 Azimuth: 343.67

Argentina

Object: Altitude: -65.40 Azimuth: 111.28

Sun: Altitude: -41.87 Azimuth: 94.16

Moon: Altitude: 31.43 Azimuth: 285.11

Mexico

Object: Altitude: 4.81 Azimuth: 131.37

Sun: Altitude: 15.96 Azimuth: 108.10

Moon: Altitude: -29.49 Azimuth: 286.35

Ural

Object: Altitude: 35.60 Azimuth: 254.37

Sun: Altitude: 11.72 Azimuth: 244.74

Moon: Altitude: -8.72 Azimuth: 51.24

Vostryakovo

Object: Altitude: 23.92 Azimuth: 238.17

Sun: Altitude: 0.82 Azimuth: 227.20

Moon: Altitude: 0.62 Azimuth: 33.66

Gal. latitude: -7.268982 Gal. longitude: 163.890935

Dist. to Sun: 25.423108

Dist. to Moon: 145.823077

Moon coord.: (286.264302 d, -27.637728 d)

Sun coord.: (91.893105 d, 23.435468 d)

Lunar disk: 0.986026

Lunar phase: 13.577933

Lunar bright limb: 104.245683

No SN in this field

Recent coverage and limits telegrams

 #######################################################################################
#######################################################################################

  ID = 3941
TYPE = 35
DAYS = 1


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 210308A ( V. D'Elia et al., GCN 29619) errorbox  40899 sec after notice time and 40918 sec after trigger time at 2021-03-08 17:59:54 UT, with upper limit up to  13.9 mag. Observations started at twilight.  The observations began at zenith distance = 74 deg. The sun  altitude  is -12.2 deg. 

MASTER-IAC robotic telescope  located in Spain (IAC Teide Observatory) was pointed to the SWIFT GRB 210308A errorbox  55958 sec after notice time and 55976 sec after trigger time at 2021-03-08 22:10:53 UT, with upper limit up to  19.8 mag. The observations began at zenith distance = 48 deg. The sun  altitude  is -40.8 deg. 

The galactic latitude b = -7 deg., longitude l = 164 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1563625

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   21950 |             MASTER- |   C |    60 | 18.0 |        
   22210 |             MASTER- |   C |    60 | 15.8 |        
   22945 |             MASTER- |   C |    60 | 12.6 |        
   41008 |         MASTER-SAAO |   C |   180 | 13.9 |        
   56067 |          MASTER-IAC |   C |   180 | 18.5 |        
   56247 |          MASTER-IAC |   C |   540 | 19.7 |  Coadd 
   56267 |          MASTER-IAC |   C |   180 | 19.1 |        
   56711 |          MASTER-IAC |   C |   180 | 19.3 |        
   56711 |          MASTER-IAC |   C |   180 | 19.3 |        
   56891 |          MASTER-IAC |   C |   540 | 19.8 |  Coadd 
   56911 |          MASTER-IAC |   C |   180 | 19.5 |        
   56911 |          MASTER-IAC |   C |   180 | 19.3 |        
   57111 |          MASTER-IAC |   C |   180 | 18.9 |        
   57111 |          MASTER-IAC |   C |   180 | 19.1 |        
   62432 |          MASTER-IAC |   C |   180 | 18.6 |        
   62432 |          MASTER-IAC |   C |   180 | 18.4 |        
   65941 |          MASTER-IAC |   C |   180 | 18.5 |        
   66121 |          MASTER-IAC |   C |   540 | 19.3 |  Coadd 
   65941 |          MASTER-IAC |   C |   180 | 17.9 |        
   66121 |          MASTER-IAC |   C |   540 | 18.6 |  Coadd 
   66141 |          MASTER-IAC |   C |   180 | 18.7 |        
   66141 |          MASTER-IAC |   C |   180 | 18.1 |        
   66341 |          MASTER-IAC |   C |   180 | 18.7 |        
   66341 |          MASTER-IAC |   C |   180 | 18.0 |        
   66541 |          MASTER-IAC |   C |   180 | 18.6 |        
   66541 |          MASTER-IAC |   C |   180 | 17.9 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3937
TYPE = 35
DAYS = 0.5


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 210308A ( V. D'Elia et al., GCN 29619) errorbox  40899 sec after notice time and 40918 sec after trigger time at 2021-03-08 17:59:54 UT, with upper limit up to  13.9 mag. Observations started at twilight.  The observations began at zenith distance = 74 deg. The sun  altitude  is -12.2 deg. 

The galactic latitude b = -7 deg., longitude l = 164 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1563625

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   21950 |             MASTER- |   C |    60 | 18.0 |        
   22210 |             MASTER- |   C |    60 | 15.8 |        
   22945 |             MASTER- |   C |    60 | 12.6 |        
   41008 |         MASTER-SAAO |   C |   180 | 13.9 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3936
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 210308A ( V. D'Elia et al., GCN 29619) errorbox  40899 sec after notice time and 40918 sec after trigger time at 2021-03-08 17:59:54 UT, with upper limit up to  13.9 mag. Observations started at twilight.  The observations began at zenith distance = 74 deg. The sun  altitude  is -12.2 deg. 

MASTER-IAC robotic telescope  located in Spain (IAC Teide Observatory) was pointed to the SWIFT GRB 210308A errorbox  55958 sec after notice time and 55976 sec after trigger time at 2021-03-08 22:10:53 UT, with upper limit up to  18.5 mag. The observations began at zenith distance = 48 deg. The sun  altitude  is -40.8 deg. 

The galactic latitude b = -7 deg., longitude l = 164 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1563625

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   21950 |             MASTER- |   C |    60 | 18.0 |        
   22210 |             MASTER- |   C |    60 | 15.8 |        
   22945 |             MASTER- |   C |    60 | 12.6 |        
   41008 |         MASTER-SAAO |   C |   180 | 13.9 |        
   56067 |          MASTER-IAC |   C |   180 | 18.5 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3935
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 210308A ( V. D'Elia et al., GCN 29619) errorbox  40899 sec after notice time and 40918 sec after trigger time at 2021-03-08 17:59:54 UT, with upper limit up to  13.9 mag. Observations started at twilight.  The observations began at zenith distance = 74 deg. The sun  altitude  is -12.2 deg. 

MASTER-IAC robotic telescope  located in Spain (IAC Teide Observatory) was pointed to the SWIFT GRB 210308A errorbox  55958 sec after notice time and 55976 sec after trigger time at 2021-03-08 22:10:53 UT, with upper limit up to  18.5 mag. The observations began at zenith distance = 48 deg. The sun  altitude  is -40.8 deg. 

The galactic latitude b = -7 deg., longitude l = 164 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1563625

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   21950 |             MASTER- |   C |    60 | 18.0 |        
   22210 |             MASTER- |   C |    60 | 15.8 |        
   22945 |             MASTER- |   C |    60 | 12.6 |        
   41008 |         MASTER-SAAO |   C |   180 | 13.9 |        
   56067 |          MASTER-IAC |   C |   180 | 18.5 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3934
TYPE = 34
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 210308A ( V. D'Elia et al., GCN 29619) errorbox  40899 sec after notice time and 40918 sec after trigger time at 2021-03-08 17:59:54 UT, with upper limit up to  13.9 mag. Observations started at twilight.  The observations began at zenith distance = 74 deg. The sun  altitude  is -12.2 deg. 

MASTER-IAC robotic telescope  located in Spain (IAC Teide Observatory) was pointed to the SWIFT GRB 210308A errorbox  55958 sec after notice time and 55976 sec after trigger time at 2021-03-08 22:10:53 UT, with upper limit up to  18.5 mag. The observations began at zenith distance = 48 deg. The sun  altitude  is -40.8 deg. 

The galactic latitude b = -7 deg., longitude l = 164 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1563625

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   21950 |             MASTER- |   C |    60 | 18.0 |        
   22210 |             MASTER- |   C |    60 | 15.8 |        
   22945 |             MASTER- |   C |    60 | 12.6 |        
   41008 |         MASTER-SAAO |   C |   180 | 13.9 |        
   56067 |          MASTER-IAC |   C |   180 | 18.5 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3933
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 210308A ( V. D'Elia et al., GCN 29619) errorbox  40899 sec after notice time and 40918 sec after trigger time at 2021-03-08 17:59:54 UT, with upper limit up to  13.9 mag. Observations started at twilight.  The observations began at zenith distance = 74 deg. The sun  altitude  is -12.2 deg. 

The galactic latitude b = -7 deg., longitude l = 164 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1563625

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   21950 |             MASTER- |   C |    60 | 18.0 |        
   22210 |             MASTER- |   C |    60 | 15.8 |        
   22945 |             MASTER- |   C |    60 | 12.6 |        
   41008 |         MASTER-SAAO |   C |   180 | 13.9 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3932
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 210308A ( V. D'Elia et al., GCN 29619) errorbox  40899 sec after notice time and 40918 sec after trigger time at 2021-03-08 17:59:54 UT, with upper limit up to  13.9 mag. Observations started at twilight.  The observations began at zenith distance = 74 deg. The sun  altitude  is -12.2 deg. 

The galactic latitude b = -7 deg., longitude l = 164 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1563625

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   21950 |             MASTER- |   C |    60 | 18.0 |        
   22210 |             MASTER- |   C |    60 | 15.8 |        
   22945 |             MASTER- |   C |    60 | 12.6 |        
   41008 |         MASTER-SAAO |   C |   180 | 13.9 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3931
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 210308A ( V. D'Elia et al., GCN 29619) errorbox  40899 sec after notice time and 40918 sec after trigger time at 2021-03-08 17:59:54 UT, with upper limit up to  13.9 mag. Observations started at twilight.  The observations began at zenith distance = 74 deg. The sun  altitude  is -12.2 deg. 

The galactic latitude b = -7 deg., longitude l = 164 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1563625

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   21950 |             MASTER- |   C |    60 | 18.0 |        
   22210 |             MASTER- |   C |    60 | 15.8 |        
   22945 |             MASTER- |   C |    60 | 12.6 |        
   41008 |         MASTER-SAAO |   C |   180 | 13.9 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3930
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 210308A ( V. D'Elia et al., GCN 29619) errorbox  40899 sec after notice time and 40918 sec after trigger time at 2021-03-08 17:59:54 UT, with upper limit up to  13.9 mag. Observations started at twilight.  The observations began at zenith distance = 74 deg. The sun  altitude  is -12.2 deg. 

The galactic latitude b = -7 deg., longitude l = 164 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1563625

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   21950 |             MASTER- |   C |    60 | 18.0 |        
   22210 |             MASTER- |   C |    60 | 15.8 |        
   22945 |             MASTER- |   C |    60 | 12.6 |        
   41008 |         MASTER-SAAO |   C |   180 | 13.9 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3929
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 210308A ( V. D'Elia et al., GCN 29619) errorbox  40899 sec after notice time and 40918 sec after trigger time at 2021-03-08 17:59:54 UT, with upper limit up to  13.9 mag. Observations started at twilight.  The observations began at zenith distance = 74 deg. The sun  altitude  is -12.2 deg. 

The galactic latitude b = -7 deg., longitude l = 164 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1563625

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   21950 |             MASTER- |   C |    60 | 18.0 |        
   22210 |             MASTER- |   C |    60 | 15.8 |        
   22945 |             MASTER- |   C |    60 | 12.6 |        
   41008 |         MASTER-SAAO |   C |   180 | 13.9 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3928
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 210308A ( V. D'Elia et al., GCN 29619) errorbox  40899 sec after notice time and 40918 sec after trigger time at 2021-03-08 17:59:54 UT, with upper limit up to  13.9 mag. Observations started at twilight.  The observations began at zenith distance = 74 deg. The sun  altitude  is -12.2 deg. 

The galactic latitude b = -7 deg., longitude l = 164 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1563625

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   21950 |             MASTER- |   C |    60 | 18.0 |        
   22210 |             MASTER- |   C |    60 | 15.8 |        
   22945 |             MASTER- |   C |    60 | 12.6 |        
   41008 |         MASTER-SAAO |   C |   180 | 13.9 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3927
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 210308A ( V. D'Elia et al., GCN 29619) errorbox  40899 sec after notice time and 40918 sec after trigger time at 2021-03-08 17:59:54 UT, with upper limit up to  13.9 mag. Observations started at twilight.  The observations began at zenith distance = 74 deg. The sun  altitude  is -12.2 deg. 

The galactic latitude b = -7 deg., longitude l = 164 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1563625

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   21950 |             MASTER- |   C |    60 | 18.0 |        
   22210 |             MASTER- |   C |    60 | 15.8 |        
   22945 |             MASTER- |   C |    60 | 12.6 |        
   41008 |         MASTER-SAAO |   C |   180 | 13.9 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3926
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 210308A ( V. D'Elia et al., GCN 29619) errorbox  40899 sec after notice time and 40918 sec after trigger time at 2021-03-08 17:59:54 UT, with upper limit up to  13.9 mag. Observations started at twilight.  The observations began at zenith distance = 74 deg. The sun  altitude  is -12.2 deg. 

The galactic latitude b = -7 deg., longitude l = 164 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1563625

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   21950 |             MASTER- |   C |    60 | 18.0 |        
   22210 |             MASTER- |   C |    60 | 15.8 |        
   22945 |             MASTER- |   C |    60 | 12.6 |        
   41008 |         MASTER-SAAO |   C |   180 | 13.9 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3925
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 210308A ( V. D'Elia et al., GCN 29619) errorbox  40899 sec after notice time and 40918 sec after trigger time at 2021-03-08 17:59:54 UT, with upper limit up to  13.9 mag. Observations started at twilight.  The observations began at zenith distance = 74 deg. The sun  altitude  is -12.2 deg. 

The galactic latitude b = -7 deg., longitude l = 164 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1563625

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   21950 |             MASTER- |   C |    60 | 18.0 |        
   22210 |             MASTER- |   C |    60 | 15.8 |        
   22945 |             MASTER- |   C |    60 | 12.6 |        
   41008 |         MASTER-SAAO |   C |   180 | 13.9 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3924
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 210308A ( V. D'Elia et al., GCN 29619) errorbox  40899 sec after notice time and 40918 sec after trigger time at 2021-03-08 17:59:54 UT, with upper limit up to  13.9 mag. Observations started at twilight.  The observations began at zenith distance = 74 deg. The sun  altitude  is -12.2 deg. 

The galactic latitude b = -7 deg., longitude l = 164 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1563625

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   21950 |             MASTER- |   C |    60 | 18.0 |        
   22210 |             MASTER- |   C |    60 | 15.8 |        
   22945 |             MASTER- |   C |    60 | 12.6 |        
   41008 |         MASTER-SAAO |   C |   180 | 13.9 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3923
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 210308A ( V. D'Elia et al., GCN 29619) errorbox  40899 sec after notice time and 40918 sec after trigger time at 2021-03-08 17:59:54 UT, with upper limit up to  13.9 mag. Observations started at twilight.  The observations began at zenith distance = 74 deg. The sun  altitude  is -12.2 deg. 

The galactic latitude b = -7 deg., longitude l = 164 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1563625

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   21950 |             MASTER- |   C |    60 | 18.0 |        
   22210 |             MASTER- |   C |    60 | 15.8 |        
   22945 |             MASTER- |   C |    60 | 12.6 |        
   41008 |         MASTER-SAAO |   C |   180 | 13.9 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3922
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 210308A ( V. D'Elia et al., GCN 29619) errorbox  40899 sec after notice time and 40918 sec after trigger time at 2021-03-08 17:59:54 UT, with upper limit up to  13.9 mag. Observations started at twilight.  The observations began at zenith distance = 74 deg. The sun  altitude  is -12.2 deg. 

The galactic latitude b = -7 deg., longitude l = 164 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1563625

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   21950 |             MASTER- |   C |    60 | 18.0 |        
   22210 |             MASTER- |   C |    60 | 15.8 |        
   22945 |             MASTER- |   C |    60 | 12.6 |        
   41008 |         MASTER-SAAO |   C |   180 | 13.9 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3921
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 210308A ( V. D'Elia et al., GCN 29619) errorbox  40899 sec after notice time and 40918 sec after trigger time at 2021-03-08 17:59:54 UT, with upper limit up to  13.9 mag. Observations started at twilight.  The observations began at zenith distance = 74 deg. The sun  altitude  is -12.2 deg. 

The galactic latitude b = -7 deg., longitude l = 164 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1563625

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   21950 |             MASTER- |   C |    60 | 18.0 |        
   22210 |             MASTER- |   C |    60 | 15.8 |        
   22945 |             MASTER- |   C |    60 | 12.6 |        
   41008 |         MASTER-SAAO |   C |   180 | 13.9 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3920
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 210308A ( V. D'Elia et al., GCN 29619) errorbox  40899 sec after notice time and 40918 sec after trigger time at 2021-03-08 17:59:54 UT, with upper limit up to  13.9 mag. Observations started at twilight.  The observations began at zenith distance = 74 deg. The sun  altitude  is -12.2 deg. 

The galactic latitude b = -7 deg., longitude l = 164 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1563625

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   21950 |             MASTER- |   C |    60 | 18.0 |        
   22210 |             MASTER- |   C |    60 | 15.8 |        
   22945 |             MASTER- |   C |    60 | 12.6 |        
   41008 |         MASTER-SAAO |   C |   180 | 13.9 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3919
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 210308A ( V. D'Elia et al., GCN 29619) errorbox  40899 sec after notice time and 40918 sec after trigger time at 2021-03-08 17:59:54 UT, with upper limit up to  13.9 mag. Observations started at twilight.  The observations began at zenith distance = 74 deg. The sun  altitude  is -12.2 deg. 

The galactic latitude b = -7 deg., longitude l = 164 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1563625

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   21950 |             MASTER- |   C |    60 | 18.0 |        
   22210 |             MASTER- |   C |    60 | 15.8 |        
   22945 |             MASTER- |   C |    60 | 12.6 |        
   41008 |         MASTER-SAAO |   C |   180 | 13.9 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3918
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 210308A ( V. D'Elia et al., GCN 29619) errorbox  40899 sec after notice time and 40918 sec after trigger time at 2021-03-08 17:59:54 UT, with upper limit up to  13.9 mag. Observations started at twilight.  The observations began at zenith distance = 74 deg. The sun  altitude  is -12.2 deg. 

The galactic latitude b = -7 deg., longitude l = 164 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1563625

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   21950 |             MASTER- |   C |    60 | 18.0 |        
   22210 |             MASTER- |   C |    60 | 15.8 |        
   22945 |             MASTER- |   C |    60 | 12.6 |        
   41008 |         MASTER-SAAO |   C |   180 | 13.9 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3917
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 210308A ( V. D'Elia et al., GCN 29619) errorbox  40899 sec after notice time and 40918 sec after trigger time at 2021-03-08 17:59:54 UT, with upper limit up to  13.9 mag. Observations started at twilight.  The observations began at zenith distance = 74 deg. The sun  altitude  is -12.2 deg. 

The galactic latitude b = -7 deg., longitude l = 164 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1563625

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   21950 |             MASTER- |   C |    60 | 18.0 |        
   22210 |             MASTER- |   C |    60 | 15.8 |        
   22945 |             MASTER- |   C |    60 | 12.6 |        
   41008 |         MASTER-SAAO |   C |   180 | 13.9 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3916
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 210308A ( V. D'Elia et al., GCN 29619) errorbox  40899 sec after notice time and 40918 sec after trigger time at 2021-03-08 17:59:54 UT, with upper limit up to  13.9 mag. Observations started at twilight.  The observations began at zenith distance = 74 deg. The sun  altitude  is -12.2 deg. 

The galactic latitude b = -7 deg., longitude l = 164 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1563625

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   21950 |             MASTER- |   C |    60 | 18.0 |        
   22210 |             MASTER- |   C |    60 | 15.8 |        
   22945 |             MASTER- |   C |    60 | 12.6 |        
   41008 |         MASTER-SAAO |   C |   180 | 13.9 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3915
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 210308A ( V. D'Elia et al., GCN 29619) errorbox  40899 sec after notice time and 40918 sec after trigger time at 2021-03-08 17:59:54 UT, with upper limit up to  13.9 mag. Observations started at twilight.  The observations began at zenith distance = 74 deg. The sun  altitude  is -12.2 deg. 

The galactic latitude b = -7 deg., longitude l = 164 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1563625

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   21950 |             MASTER- |   C |    60 | 18.0 |        
   22210 |             MASTER- |   C |    60 | 15.8 |        
   22945 |             MASTER- |   C |    60 | 12.6 |        
   41008 |         MASTER-SAAO |   C |   180 | 13.9 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3914
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 210308A ( V. D'Elia et al., GCN 29619) errorbox  40899 sec after notice time and 40918 sec after trigger time at 2021-03-08 17:59:54 UT, with upper limit up to  13.9 mag. Observations started at twilight.  The observations began at zenith distance = 74 deg. The sun  altitude  is -12.2 deg. 

The galactic latitude b = -7 deg., longitude l = 164 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1563625

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   21950 |             MASTER- |   C |    60 | 18.0 |        
   22210 |             MASTER- |   C |    60 | 15.8 |        
   22945 |             MASTER- |   C |    60 | 12.6 |        
   41008 |         MASTER-SAAO |   C |   180 | 13.9 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3913
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 210308A ( V. D'Elia et al., GCN 29619) errorbox  40899 sec after notice time and 40918 sec after trigger time at 2021-03-08 17:59:54 UT, with upper limit up to  13.9 mag. Observations started at twilight.  The observations began at zenith distance = 74 deg. The sun  altitude  is -12.2 deg. 

The galactic latitude b = -7 deg., longitude l = 164 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1563625

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   21950 |             MASTER- |   C |    60 | 18.0 |        
   22210 |             MASTER- |   C |    60 | 15.8 |        
   22945 |             MASTER- |   C |    60 | 12.6 |        
   41008 |         MASTER-SAAO |   C |   180 | 13.9 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3912
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 210308A ( V. D'Elia et al., GCN 29619) errorbox  40899 sec after notice time and 40918 sec after trigger time at 2021-03-08 17:59:54 UT, with upper limit up to  13.9 mag. Observations started at twilight.  The observations began at zenith distance = 74 deg. The sun  altitude  is -12.2 deg. 

The galactic latitude b = -7 deg., longitude l = 164 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1563625

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   21950 |             MASTER- |   C |    60 | 18.0 |        
   22210 |             MASTER- |   C |    60 | 15.8 |        
   22945 |             MASTER- |   C |    60 | 12.6 |        
   41008 |         MASTER-SAAO |   C |   180 | 13.9 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3911
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 210308A ( V. D'Elia et al., GCN 29619) errorbox  40899 sec after notice time and 40918 sec after trigger time at 2021-03-08 17:59:54 UT, with upper limit up to  13.9 mag. Observations started at twilight.  The observations began at zenith distance = 74 deg. The sun  altitude  is -12.2 deg. 

The galactic latitude b = -7 deg., longitude l = 164 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1563625

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   21950 |             MASTER- |   C |    60 | 18.0 |        
   22210 |             MASTER- |   C |    60 | 15.8 |        
   22945 |             MASTER- |   C |    60 | 12.6 |        
   41008 |         MASTER-SAAO |   C |   180 | 13.9 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3910
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 210308A ( V. D'Elia et al., GCN 29619) errorbox  40899 sec after notice time and 40918 sec after trigger time at 2021-03-08 17:59:54 UT, with upper limit up to  13.9 mag. Observations started at twilight.  The observations began at zenith distance = 74 deg. The sun  altitude  is -12.2 deg. 

The galactic latitude b = -7 deg., longitude l = 164 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1563625

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   21950 |             MASTER- |   C |    60 | 18.0 |        
   22210 |             MASTER- |   C |    60 | 15.8 |        
   22945 |             MASTER- |   C |    60 | 12.6 |        
   41008 |         MASTER-SAAO |   C |   180 | 13.9 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3909
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 210308A ( V. D'Elia et al., GCN 29619) errorbox  40899 sec after notice time and 40918 sec after trigger time at 2021-03-08 17:59:54 UT, with upper limit up to  13.9 mag. Observations started at twilight.  The observations began at zenith distance = 74 deg. The sun  altitude  is -12.2 deg. 

The galactic latitude b = -7 deg., longitude l = 164 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1563625

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   21950 |             MASTER- |   C |    60 | 18.0 |        
   22210 |             MASTER- |   C |    60 | 15.8 |        
   22945 |             MASTER- |   C |    60 | 12.6 |        
   41008 |         MASTER-SAAO |   C |   180 | 13.9 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3908
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 210308A ( V. D'Elia et al., GCN 29619) errorbox  40899 sec after notice time and 40918 sec after trigger time at 2021-03-08 17:59:54 UT, with upper limit up to  13.9 mag. Observations started at twilight.  The observations began at zenith distance = 74 deg. The sun  altitude  is -12.2 deg. 

The galactic latitude b = -7 deg., longitude l = 164 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1563625

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   21950 |             MASTER- |   C |    60 | 18.0 |        
   22210 |             MASTER- |   C |    60 | 15.8 |        
   22945 |             MASTER- |   C |    60 | 12.6 |        
   41008 |         MASTER-SAAO |   C |   180 | 13.9 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3907
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 210308A ( V. D'Elia et al., GCN 29619) errorbox  40899 sec after notice time and 40918 sec after trigger time at 2021-03-08 17:59:54 UT, with upper limit up to  13.9 mag. Observations started at twilight.  The observations began at zenith distance = 74 deg. The sun  altitude  is -12.2 deg. 

The galactic latitude b = -7 deg., longitude l = 164 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1563625

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   21950 |             MASTER- |   C |    60 | 18.0 |        
   22210 |             MASTER- |   C |    60 | 15.8 |        
   22945 |             MASTER- |   C |    60 | 12.6 |        
   41008 |         MASTER-SAAO |   C |   180 | 13.9 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3906
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 210308A ( V. D'Elia et al., GCN 29619) errorbox  40899 sec after notice time and 40918 sec after trigger time at 2021-03-08 17:59:54 UT, with upper limit up to  13.9 mag. Observations started at twilight.  The observations began at zenith distance = 74 deg. The sun  altitude  is -12.2 deg. 

The galactic latitude b = -7 deg., longitude l = 164 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1563625

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   21950 |             MASTER- |   C |    60 | 18.0 |        
   22210 |             MASTER- |   C |    60 | 15.8 |        
   22945 |             MASTER- |   C |    60 | 12.6 |        
   41008 |         MASTER-SAAO |   C |   180 | 13.9 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3905
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 210308A ( V. D'Elia et al., GCN 29619) errorbox  40899 sec after notice time and 40918 sec after trigger time at 2021-03-08 17:59:54 UT, with upper limit up to  13.9 mag. Observations started at twilight.  The observations began at zenith distance = 74 deg. The sun  altitude  is -12.2 deg. 

The galactic latitude b = -7 deg., longitude l = 164 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1563625

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   21950 |             MASTER- |   C |    60 | 18.0 |        
   22210 |             MASTER- |   C |    60 | 15.8 |        
   22945 |             MASTER- |   C |    60 | 12.6 |        
   41008 |         MASTER-SAAO |   C |   180 | 13.9 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3904
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 210308A ( V. D'Elia et al., GCN 29619) errorbox  40899 sec after notice time and 40918 sec after trigger time at 2021-03-08 17:59:54 UT, with upper limit up to  13.9 mag. Observations started at twilight.  The observations began at zenith distance = 74 deg. The sun  altitude  is -12.2 deg. 

The galactic latitude b = -7 deg., longitude l = 164 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1563625

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   21950 |             MASTER- |   C |    60 | 18.0 |        
   22210 |             MASTER- |   C |    60 | 15.8 |        
   22945 |             MASTER- |   C |    60 | 12.6 |        
   41008 |         MASTER-SAAO |   C |   180 | 13.9 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3903
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 210308A ( V. D'Elia et al., GCN 29619) errorbox  40899 sec after notice time and 40918 sec after trigger time at 2021-03-08 17:59:54 UT, with upper limit up to  13.9 mag. Observations started at twilight.  The observations began at zenith distance = 74 deg. The sun  altitude  is -12.2 deg. 

The galactic latitude b = -7 deg., longitude l = 164 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1563625

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   21950 |             MASTER- |   C |    60 | 18.0 |        
   22210 |             MASTER- |   C |    60 | 15.8 |        
   22945 |             MASTER- |   C |    60 | 12.6 |        
   41008 |         MASTER-SAAO |   C |   180 | 13.9 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3902
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 210308A ( V. D'Elia et al., GCN 29619) errorbox  40899 sec after notice time and 40918 sec after trigger time at 2021-03-08 17:59:54 UT, with upper limit up to  13.9 mag. Observations started at twilight.  The observations began at zenith distance = 74 deg. The sun  altitude  is -12.2 deg. 

The galactic latitude b = -7 deg., longitude l = 164 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1563625

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   21950 |             MASTER- |   C |    60 | 18.0 |        
   22210 |             MASTER- |   C |    60 | 15.8 |        
   22945 |             MASTER- |   C |    60 | 12.6 |        
   41008 |         MASTER-SAAO |   C |   180 | 13.9 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3901
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 210308A ( V. D'Elia et al., GCN 29619) errorbox  40899 sec after notice time and 40918 sec after trigger time at 2021-03-08 17:59:54 UT, with upper limit up to  13.9 mag. Observations started at twilight.  The observations began at zenith distance = 74 deg. The sun  altitude  is -12.2 deg. 

The galactic latitude b = -7 deg., longitude l = 164 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1563625

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   21950 |             MASTER- |   C |    60 | 18.0 |        
   22210 |             MASTER- |   C |    60 | 15.8 |        
   22945 |             MASTER- |   C |    60 | 12.6 |        
   41008 |         MASTER-SAAO |   C |   180 | 13.9 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3900
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 210308A ( V. D'Elia et al., GCN 29619) errorbox  40899 sec after notice time and 40918 sec after trigger time at 2021-03-08 17:59:54 UT, with upper limit up to  13.9 mag. Observations started at twilight.  The observations began at zenith distance = 74 deg. The sun  altitude  is -12.2 deg. 

The galactic latitude b = -7 deg., longitude l = 164 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1563625

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   21950 |             MASTER- |   C |    60 | 18.0 |        
   22210 |             MASTER- |   C |    60 | 15.8 |        
   22945 |             MASTER- |   C |    60 | 12.6 |        
   41008 |         MASTER-SAAO |   C |   180 | 13.9 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3899
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 210308A ( V. D'Elia et al., GCN 29619) errorbox  40899 sec after notice time and 40918 sec after trigger time at 2021-03-08 17:59:54 UT, with upper limit up to  13.9 mag. Observations started at twilight.  The observations began at zenith distance = 74 deg. The sun  altitude  is -12.2 deg. 

The galactic latitude b = -7 deg., longitude l = 164 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1563625

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   21950 |             MASTER- |   C |    60 | 18.0 |        
   22210 |             MASTER- |   C |    60 | 15.8 |        
   22945 |             MASTER- |   C |    60 | 12.6 |        
   41008 |         MASTER-SAAO |   C |   180 | 13.9 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3898
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 210308A ( V. D'Elia et al., GCN 29619) errorbox  40899 sec after notice time and 40918 sec after trigger time at 2021-03-08 17:59:54 UT, with upper limit up to  13.9 mag. Observations started at twilight.  The observations began at zenith distance = 74 deg. The sun  altitude  is -12.2 deg. 

The galactic latitude b = -7 deg., longitude l = 164 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1563625

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   21950 |             MASTER- |   C |    60 | 18.0 |        
   22210 |             MASTER- |   C |    60 | 15.8 |        
   22945 |             MASTER- |   C |    60 | 12.6 |        
   41008 |         MASTER-SAAO |   C |   180 | 13.9 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3897
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 210308A ( V. D'Elia et al., GCN 29619) errorbox  40899 sec after notice time and 40918 sec after trigger time at 2021-03-08 17:59:54 UT, with upper limit up to  13.9 mag. Observations started at twilight.  The observations began at zenith distance = 74 deg. The sun  altitude  is -12.2 deg. 

The galactic latitude b = -7 deg., longitude l = 164 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1563625

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   21950 |             MASTER- |   C |    60 | 18.0 |        
   22210 |             MASTER- |   C |    60 | 15.8 |        
   22945 |             MASTER- |   C |    60 | 12.6 |        
   41008 |         MASTER-SAAO |   C |   180 | 13.9 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3896
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 210308A ( V. D'Elia et al., GCN 29619) errorbox  40899 sec after notice time and 40918 sec after trigger time at 2021-03-08 17:59:54 UT, with upper limit up to  13.9 mag. Observations started at twilight.  The observations began at zenith distance = 74 deg. The sun  altitude  is -12.2 deg. 

The galactic latitude b = -7 deg., longitude l = 164 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1563625

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   21950 |             MASTER- |   C |    60 | 18.0 |        
   22210 |             MASTER- |   C |    60 | 15.8 |        
   22945 |             MASTER- |   C |    60 | 12.6 |        
   41008 |         MASTER-SAAO |   C |   180 | 13.9 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3895
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 210308A ( V. D'Elia et al., GCN 29619) errorbox  40899 sec after notice time and 40918 sec after trigger time at 2021-03-08 17:59:54 UT, with upper limit up to  13.9 mag. Observations started at twilight.  The observations began at zenith distance = 74 deg. The sun  altitude  is -12.2 deg. 

The galactic latitude b = -7 deg., longitude l = 164 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1563625

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   21950 |             MASTER- |   C |    60 | 18.0 |        
   22210 |             MASTER- |   C |    60 | 15.8 |        
   22945 |             MASTER- |   C |    60 | 12.6 |        
   41008 |         MASTER-SAAO |   C |   180 | 13.9 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3894
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 210308A ( V. D'Elia et al., GCN 29619) errorbox  40899 sec after notice time and 40918 sec after trigger time at 2021-03-08 17:59:54 UT, with upper limit up to  13.9 mag. Observations started at twilight.  The observations began at zenith distance = 74 deg. The sun  altitude  is -12.2 deg. 

The galactic latitude b = -7 deg., longitude l = 164 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1563625

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   21950 |             MASTER- |   C |    60 | 18.0 |        
   22210 |             MASTER- |   C |    60 | 15.8 |        
   22945 |             MASTER- |   C |    60 | 12.6 |        
   41008 |         MASTER-SAAO |   C |   180 | 13.9 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3893
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 210308A ( V. D'Elia et al., GCN 29619) errorbox  40899 sec after notice time and 40918 sec after trigger time at 2021-03-08 17:59:54 UT, with upper limit up to  13.9 mag. Observations started at twilight.  The observations began at zenith distance = 74 deg. The sun  altitude  is -12.2 deg. 

The galactic latitude b = -7 deg., longitude l = 164 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1563625

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   21950 |             MASTER- |   C |    60 | 18.0 |        
   22210 |             MASTER- |   C |    60 | 15.8 |        
   22945 |             MASTER- |   C |    60 | 12.6 |        
   41008 |         MASTER-SAAO |   C |   180 | 13.9 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3892
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 210308A ( V. D'Elia et al., GCN 29619) errorbox  40899 sec after notice time and 40918 sec after trigger time at 2021-03-08 17:59:54 UT, with upper limit up to  13.9 mag. Observations started at twilight.  The observations began at zenith distance = 74 deg. The sun  altitude  is -12.2 deg. 

The galactic latitude b = -7 deg., longitude l = 164 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1563625

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   21950 |             MASTER- |   C |    60 | 18.0 |        
   22210 |             MASTER- |   C |    60 | 15.8 |        
   22945 |             MASTER- |   C |    60 | 12.6 |        
   41008 |         MASTER-SAAO |   C |   180 | 13.9 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3891
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 210308A ( V. D'Elia et al., GCN 29619) errorbox  40899 sec after notice time and 40918 sec after trigger time at 2021-03-08 17:59:54 UT, with upper limit up to  13.9 mag. Observations started at twilight.  The observations began at zenith distance = 74 deg. The sun  altitude  is -12.2 deg. 

The galactic latitude b = -7 deg., longitude l = 164 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1563625

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   21950 |             MASTER- |   C |    60 | 18.0 |        
   22210 |             MASTER- |   C |    60 | 15.8 |        
   22945 |             MASTER- |   C |    60 | 12.6 |        
   41008 |         MASTER-SAAO |   C |   180 | 13.9 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3890
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 210308A ( V. D'Elia et al., GCN 29619) errorbox  40899 sec after notice time and 40918 sec after trigger time at 2021-03-08 17:59:54 UT, with upper limit up to  13.9 mag. Observations started at twilight.  The observations began at zenith distance = 74 deg. The sun  altitude  is -12.2 deg. 

The galactic latitude b = -7 deg., longitude l = 164 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1563625

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   21950 |             MASTER- |   C |    60 | 18.0 |        
   22210 |             MASTER- |   C |    60 | 15.8 |        
   22945 |             MASTER- |   C |    60 | 12.6 |        
   41008 |         MASTER-SAAO |   C |   180 | 13.9 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3889
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 210308A ( V. D'Elia et al., GCN 29619) errorbox  40899 sec after notice time and 40918 sec after trigger time at 2021-03-08 17:59:54 UT, with upper limit up to  13.9 mag. Observations started at twilight.  The observations began at zenith distance = 74 deg. The sun  altitude  is -12.2 deg. 

The galactic latitude b = -7 deg., longitude l = 164 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1563625

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   21950 |             MASTER- |   C |    60 | 18.0 |        
   22210 |             MASTER- |   C |    60 | 15.8 |        
   22945 |             MASTER- |   C |    60 | 12.6 |        
   41008 |         MASTER-SAAO |   C |   180 | 13.9 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3888
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 210308A ( V. D'Elia et al., GCN 29619) errorbox  40899 sec after notice time and 40918 sec after trigger time at 2021-03-08 17:59:54 UT, with upper limit up to  13.9 mag. Observations started at twilight.  The observations began at zenith distance = 74 deg. The sun  altitude  is -12.2 deg. 

The galactic latitude b = -7 deg., longitude l = 164 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1563625

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   21950 |             MASTER- |   C |    60 | 18.0 |        
   22210 |             MASTER- |   C |    60 | 15.8 |        
   22945 |             MASTER- |   C |    60 | 12.6 |        
   41008 |         MASTER-SAAO |   C |   180 | 13.9 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3887
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 210308A ( V. D'Elia et al., GCN 29619) errorbox  40899 sec after notice time and 40918 sec after trigger time at 2021-03-08 17:59:54 UT, with upper limit up to  13.9 mag. Observations started at twilight.  The observations began at zenith distance = 74 deg. The sun  altitude  is -12.2 deg. 

The galactic latitude b = -7 deg., longitude l = 164 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1563625

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   21950 |             MASTER- |   C |    60 | 18.0 |        
   22210 |             MASTER- |   C |    60 | 15.8 |        
   22945 |             MASTER- |   C |    60 | 12.6 |        
   41008 |         MASTER-SAAO |   C |   180 | 13.9 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3886
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 210308A ( V. D'Elia et al., GCN 29619) errorbox  40899 sec after notice time and 40918 sec after trigger time at 2021-03-08 17:59:54 UT, with upper limit up to  13.9 mag. Observations started at twilight.  The observations began at zenith distance = 74 deg. The sun  altitude  is -12.2 deg. 

The galactic latitude b = -7 deg., longitude l = 164 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1563625

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   21950 |             MASTER- |   C |    60 | 18.0 |        
   22210 |             MASTER- |   C |    60 | 15.8 |        
   22945 |             MASTER- |   C |    60 | 12.6 |        
   41008 |         MASTER-SAAO |   C |   180 | 13.9 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3885
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 210308A ( V. D'Elia et al., GCN 29619) errorbox  40899 sec after notice time and 40918 sec after trigger time at 2021-03-08 17:59:54 UT, with upper limit up to  13.9 mag. Observations started at twilight.  The observations began at zenith distance = 74 deg. The sun  altitude  is -12.2 deg. 

The galactic latitude b = -7 deg., longitude l = 164 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1563625

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   21950 |             MASTER- |   C |    60 | 18.0 |        
   22210 |             MASTER- |   C |    60 | 15.8 |        
   22945 |             MASTER- |   C |    60 | 12.6 |        
   41008 |         MASTER-SAAO |   C |   180 | 13.9 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3884
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 210308A ( V. D'Elia et al., GCN 29619) errorbox  40899 sec after notice time and 40918 sec after trigger time at 2021-03-08 17:59:54 UT, with upper limit up to  13.9 mag. Observations started at twilight.  The observations began at zenith distance = 74 deg. The sun  altitude  is -12.2 deg. 

The galactic latitude b = -7 deg., longitude l = 164 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1563625

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   21950 |             MASTER- |   C |    60 | 18.0 |        
   22210 |             MASTER- |   C |    60 | 15.8 |        
   22945 |             MASTER- |   C |    60 | 12.6 |        
   41008 |         MASTER-SAAO |   C |   180 | 13.9 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3883
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 210308A ( V. D'Elia et al., GCN 29619) errorbox  40899 sec after notice time and 40918 sec after trigger time at 2021-03-08 17:59:54 UT, with upper limit up to  13.9 mag. Observations started at twilight.  The observations began at zenith distance = 74 deg. The sun  altitude  is -12.2 deg. 

The galactic latitude b = -7 deg., longitude l = 164 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1563625

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   21950 |             MASTER- |   C |    60 | 18.0 |        
   22210 |             MASTER- |   C |    60 | 15.8 |        
   22945 |             MASTER- |   C |    60 | 12.6 |        
   41008 |         MASTER-SAAO |   C |   180 | 13.9 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3882
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 210308A ( V. D'Elia et al., GCN 29619) errorbox  40899 sec after notice time and 40918 sec after trigger time at 2021-03-08 17:59:54 UT, with upper limit up to  13.9 mag. Observations started at twilight.  The observations began at zenith distance = 74 deg. The sun  altitude  is -12.2 deg. 

The galactic latitude b = -7 deg., longitude l = 164 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1563625

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   21950 |             MASTER- |   C |    60 | 18.0 |        
   22210 |             MASTER- |   C |    60 | 15.8 |        
   22945 |             MASTER- |   C |    60 | 12.6 |        
   41008 |         MASTER-SAAO |   C |   180 | 13.9 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3881
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 210308A ( V. D'Elia et al., GCN 29619) errorbox  40899 sec after notice time and 40918 sec after trigger time at 2021-03-08 17:59:54 UT, with upper limit up to  13.9 mag. Observations started at twilight.  The observations began at zenith distance = 74 deg. The sun  altitude  is -12.2 deg. 

The galactic latitude b = -7 deg., longitude l = 164 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1563625

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   21950 |             MASTER- |   C |    60 | 18.0 |        
   22210 |             MASTER- |   C |    60 | 15.8 |        
   22945 |             MASTER- |   C |    60 | 12.6 |        
   41008 |         MASTER-SAAO |   C |   180 | 13.9 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3880
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 210308A ( V. D'Elia et al., GCN 29619) errorbox  40899 sec after notice time and 40918 sec after trigger time at 2021-03-08 17:59:54 UT, with upper limit up to  13.9 mag. Observations started at twilight.  The observations began at zenith distance = 74 deg. The sun  altitude  is -12.2 deg. 

The galactic latitude b = -7 deg., longitude l = 164 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1563625

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   21950 |             MASTER- |   C |    60 | 18.0 |        
   22210 |             MASTER- |   C |    60 | 15.8 |        
   22945 |             MASTER- |   C |    60 | 12.6 |        
   41008 |         MASTER-SAAO |   C |   180 | 13.9 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3879
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 210308A ( V. D'Elia et al., GCN 29619) errorbox  40899 sec after notice time and 40918 sec after trigger time at 2021-03-08 17:59:54 UT, with upper limit up to  13.9 mag. Observations started at twilight.  The observations began at zenith distance = 74 deg. The sun  altitude  is -12.2 deg. 

The galactic latitude b = -7 deg., longitude l = 164 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1563625

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   21950 |             MASTER- |   C |    60 | 18.0 |        
   22210 |             MASTER- |   C |    60 | 15.8 |        
   22945 |             MASTER- |   C |    60 | 12.6 |        
   41008 |         MASTER-SAAO |   C |   180 | 13.9 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3878
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 210308A ( V. D'Elia et al., GCN 29619) errorbox  40899 sec after notice time and 40918 sec after trigger time at 2021-03-08 17:59:54 UT, with upper limit up to  13.9 mag. Observations started at twilight.  The observations began at zenith distance = 74 deg. The sun  altitude  is -12.2 deg. 

The galactic latitude b = -7 deg., longitude l = 164 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1563625

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   21950 |             MASTER- |   C |    60 | 18.0 |        
   22210 |             MASTER- |   C |    60 | 15.8 |        
   22945 |             MASTER- |   C |    60 | 12.6 |        
   41008 |         MASTER-SAAO |   C |   180 | 13.9 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3877
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 210308A ( V. D'Elia et al., GCN 29619) errorbox  40899 sec after notice time and 40918 sec after trigger time at 2021-03-08 17:59:54 UT, with upper limit up to  13.9 mag. Observations started at twilight.  The observations began at zenith distance = 74 deg. The sun  altitude  is -12.2 deg. 

The galactic latitude b = -7 deg., longitude l = 164 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1563625

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   21950 |             MASTER- |   C |    60 | 18.0 |        
   22210 |             MASTER- |   C |    60 | 15.8 |        
   22945 |             MASTER- |   C |    60 | 12.6 |        
   41008 |         MASTER-SAAO |   C |   180 | 13.9 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3876
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 210308A ( V. D'Elia et al., GCN 29619) errorbox  40899 sec after notice time and 40918 sec after trigger time at 2021-03-08 17:59:54 UT, with upper limit up to  13.9 mag. Observations started at twilight.  The observations began at zenith distance = 74 deg. The sun  altitude  is -12.2 deg. 

The galactic latitude b = -7 deg., longitude l = 164 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1563625

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   21950 |             MASTER- |   C |    60 | 18.0 |        
   22210 |             MASTER- |   C |    60 | 15.8 |        
   22945 |             MASTER- |   C |    60 | 12.6 |        
   41008 |         MASTER-SAAO |   C |   180 | 13.9 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3875
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 210308A ( V. D'Elia et al., GCN 29619) errorbox  40899 sec after notice time and 40918 sec after trigger time at 2021-03-08 17:59:54 UT, with upper limit up to  13.9 mag. Observations started at twilight.  The observations began at zenith distance = 74 deg. The sun  altitude  is -12.2 deg. 

The galactic latitude b = -7 deg., longitude l = 164 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1563625

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   21950 |             MASTER- |   C |    60 | 18.0 |        
   22210 |             MASTER- |   C |    60 | 15.8 |        
   22945 |             MASTER- |   C |    60 | 12.6 |        
   41008 |         MASTER-SAAO |   C |   180 | 13.9 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3874
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 210308A ( V. D'Elia et al., GCN 29619) errorbox  40899 sec after notice time and 40918 sec after trigger time at 2021-03-08 17:59:54 UT, with upper limit up to  13.9 mag. Observations started at twilight.  The observations began at zenith distance = 74 deg. The sun  altitude  is -12.2 deg. 

The galactic latitude b = -7 deg., longitude l = 164 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1563625

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   21950 |             MASTER- |   C |    60 | 18.0 |        
   22210 |             MASTER- |   C |    60 | 15.8 |        
   22945 |             MASTER- |   C |    60 | 12.6 |        
   41008 |         MASTER-SAAO |   C |   180 | 13.9 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3873
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 210308A ( V. D'Elia et al., GCN 29619) errorbox  40899 sec after notice time and 40918 sec after trigger time at 2021-03-08 17:59:54 UT, with upper limit up to  13.9 mag. Observations started at twilight.  The observations began at zenith distance = 74 deg. The sun  altitude  is -12.2 deg. 

The galactic latitude b = -7 deg., longitude l = 164 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1563625

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   21950 |             MASTER- |   C |    60 | 18.0 |        
   22210 |             MASTER- |   C |    60 | 15.8 |        
   22945 |             MASTER- |   C |    60 | 12.6 |        
   41008 |         MASTER-SAAO |   C |   180 | 13.9 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3872
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 210308A ( V. D'Elia et al., GCN 29619) errorbox  40899 sec after notice time and 40918 sec after trigger time at 2021-03-08 17:59:54 UT, with upper limit up to  13.9 mag. Observations started at twilight.  The observations began at zenith distance = 74 deg. The sun  altitude  is -12.2 deg. 

The galactic latitude b = -7 deg., longitude l = 164 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1563625

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   21950 |             MASTER- |   C |    60 | 18.0 |        
   22210 |             MASTER- |   C |    60 | 15.8 |        
   22945 |             MASTER- |   C |    60 | 12.6 |        
   41008 |         MASTER-SAAO |   C |   180 | 13.9 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3871
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 210308A ( V. D'Elia et al., GCN 29619) errorbox  40899 sec after notice time and 40918 sec after trigger time at 2021-03-08 17:59:54 UT, with upper limit up to  13.9 mag. Observations started at twilight.  The observations began at zenith distance = 74 deg. The sun  altitude  is -12.2 deg. 

The galactic latitude b = -7 deg., longitude l = 164 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1563625

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   21950 |             MASTER- |   C |    60 | 18.0 |        
   22210 |             MASTER- |   C |    60 | 15.8 |        
   22945 |             MASTER- |   C |    60 | 12.6 |        
   41008 |         MASTER-SAAO |   C |   180 | 13.9 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3870
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 210308A ( V. D'Elia et al., GCN 29619) errorbox  40899 sec after notice time and 40918 sec after trigger time at 2021-03-08 17:59:54 UT, with upper limit up to  13.9 mag. Observations started at twilight.  The observations began at zenith distance = 74 deg. The sun  altitude  is -12.2 deg. 

The galactic latitude b = -7 deg., longitude l = 164 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1563625

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   21950 |             MASTER- |   C |    60 | 18.0 |        
   22210 |             MASTER- |   C |    60 | 15.8 |        
   22945 |             MASTER- |   C |    60 | 12.6 |        
   41008 |         MASTER-SAAO |   C |   180 | 13.9 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3869
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 210308A ( V. D'Elia et al., GCN 29619) errorbox  40899 sec after notice time and 40918 sec after trigger time at 2021-03-08 17:59:54 UT, with upper limit up to  13.9 mag. Observations started at twilight.  The observations began at zenith distance = 74 deg. The sun  altitude  is -12.2 deg. 

The galactic latitude b = -7 deg., longitude l = 164 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1563625

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   21950 |             MASTER- |   C |    60 | 18.0 |        
   22210 |             MASTER- |   C |    60 | 15.8 |        
   22945 |             MASTER- |   C |    60 | 12.6 |        
   41008 |         MASTER-SAAO |   C |   180 | 13.9 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3868
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 210308A ( V. D'Elia et al., GCN 29619) errorbox  40899 sec after notice time and 40918 sec after trigger time at 2021-03-08 17:59:54 UT, with upper limit up to  13.9 mag. Observations started at twilight.  The observations began at zenith distance = 74 deg. The sun  altitude  is -12.2 deg. 

The galactic latitude b = -7 deg., longitude l = 164 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1563625

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   21950 |             MASTER- |   C |    60 | 18.0 |        
   22210 |             MASTER- |   C |    60 | 15.8 |        
   22945 |             MASTER- |   C |    60 | 12.6 |        
   41008 |         MASTER-SAAO |   C |   180 | 13.9 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3867
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 210308A ( V. D'Elia et al., GCN 29619) errorbox  40899 sec after notice time and 40918 sec after trigger time at 2021-03-08 17:59:54 UT, with upper limit up to  13.9 mag. Observations started at twilight.  The observations began at zenith distance = 74 deg. The sun  altitude  is -12.2 deg. 

The galactic latitude b = -7 deg., longitude l = 164 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1563625

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   21950 |             MASTER- |   C |    60 | 18.0 |        
   22210 |             MASTER- |   C |    60 | 15.8 |        
   22945 |             MASTER- |   C |    60 | 12.6 |        
   41008 |         MASTER-SAAO |   C |   180 | 13.9 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3866
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 210308A ( V. D'Elia et al., GCN 29619) errorbox  40899 sec after notice time and 40918 sec after trigger time at 2021-03-08 17:59:54 UT, with upper limit up to  13.9 mag. Observations started at twilight.  The observations began at zenith distance = 74 deg. The sun  altitude  is -12.2 deg. 

The galactic latitude b = -7 deg., longitude l = 164 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1563625

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   21950 |             MASTER- |   C |    60 | 18.0 |        
   22210 |             MASTER- |   C |    60 | 15.8 |        
   22945 |             MASTER- |   C |    60 | 12.6 |        
   41008 |         MASTER-SAAO |   C |   180 | 13.9 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3865
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 210308A ( V. D'Elia et al., GCN 29619) errorbox  40899 sec after notice time and 40918 sec after trigger time at 2021-03-08 17:59:54 UT, with upper limit up to  13.9 mag. Observations started at twilight.  The observations began at zenith distance = 74 deg. The sun  altitude  is -12.2 deg. 

The galactic latitude b = -7 deg., longitude l = 164 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1563625

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   21950 |             MASTER- |   C |    60 | 18.0 |        
   22210 |             MASTER- |   C |    60 | 15.8 |        
   22945 |             MASTER- |   C |    60 | 12.6 |        
   41008 |         MASTER-SAAO |   C |   180 | 13.9 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3864
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 210308A ( V. D'Elia et al., GCN 29619) errorbox  40899 sec after notice time and 40918 sec after trigger time at 2021-03-08 17:59:54 UT, with upper limit up to  13.9 mag. Observations started at twilight.  The observations began at zenith distance = 74 deg. The sun  altitude  is -12.2 deg. 

The galactic latitude b = -7 deg., longitude l = 164 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1563625

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   21950 |             MASTER- |   C |    60 | 18.0 |        
   22210 |             MASTER- |   C |    60 | 15.8 |        
   22945 |             MASTER- |   C |    60 | 12.6 |        
   41008 |         MASTER-SAAO |   C |   180 | 13.9 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3863
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 210308A ( V. D'Elia et al., GCN 29619) errorbox  40899 sec after notice time and 40918 sec after trigger time at 2021-03-08 17:59:54 UT, with upper limit up to  13.9 mag. Observations started at twilight.  The observations began at zenith distance = 74 deg. The sun  altitude  is -12.2 deg. 

The galactic latitude b = -7 deg., longitude l = 164 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1563625

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   21950 |             MASTER- |   C |    60 | 18.0 |        
   22210 |             MASTER- |   C |    60 | 15.8 |        
   22945 |             MASTER- |   C |    60 | 12.6 |        
   41008 |         MASTER-SAAO |   C |   180 | 13.9 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3862
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 210308A ( V. D'Elia et al., GCN 29619) errorbox  40899 sec after notice time and 40918 sec after trigger time at 2021-03-08 17:59:54 UT, with upper limit up to  13.9 mag. Observations started at twilight.  The observations began at zenith distance = 74 deg. The sun  altitude  is -12.2 deg. 

The galactic latitude b = -7 deg., longitude l = 164 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1563625

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   21950 |             MASTER- |   C |    60 | 18.0 |        
   22210 |             MASTER- |   C |    60 | 15.8 |        
   22945 |             MASTER- |   C |    60 | 12.6 |        
   41008 |         MASTER-SAAO |   C |   180 | 13.9 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3861
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 210308A ( V. D'Elia et al., GCN 29619) errorbox  40899 sec after notice time and 40918 sec after trigger time at 2021-03-08 17:59:54 UT, with upper limit up to  13.9 mag. Observations started at twilight.  The observations began at zenith distance = 74 deg. The sun  altitude  is -12.2 deg. 

The galactic latitude b = -7 deg., longitude l = 164 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1563625

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   21950 |             MASTER- |   C |    60 | 18.0 |        
   22210 |             MASTER- |   C |    60 | 15.8 |        
   22945 |             MASTER- |   C |    60 | 12.6 |        
   41008 |         MASTER-SAAO |   C |   180 | 13.9 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3860
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 210308A ( V. D'Elia et al., GCN 29619) errorbox  40899 sec after notice time and 40918 sec after trigger time at 2021-03-08 17:59:54 UT, with upper limit up to  13.9 mag. Observations started at twilight.  The observations began at zenith distance = 74 deg. The sun  altitude  is -12.2 deg. 

The galactic latitude b = -7 deg., longitude l = 164 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1563625

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   21950 |             MASTER- |   C |    60 | 18.0 |        
   22210 |             MASTER- |   C |    60 | 15.8 |        
   22945 |             MASTER- |   C |    60 | 12.6 |        
   41008 |         MASTER-SAAO |   C |   180 | 13.9 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3859
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 210308A ( V. D'Elia et al., GCN 29619) errorbox  40899 sec after notice time and 40918 sec after trigger time at 2021-03-08 17:59:54 UT, with upper limit up to  13.9 mag. Observations started at twilight.  The observations began at zenith distance = 74 deg. The sun  altitude  is -12.2 deg. 

The galactic latitude b = -7 deg., longitude l = 164 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1563625

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   21950 |             MASTER- |   C |    60 | 18.0 |        
   22210 |             MASTER- |   C |    60 | 15.8 |        
   22945 |             MASTER- |   C |    60 | 12.6 |        
   41008 |         MASTER-SAAO |   C |   180 | 13.9 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3858
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 210308A ( V. D'Elia et al., GCN 29619) errorbox  40899 sec after notice time and 40918 sec after trigger time at 2021-03-08 17:59:54 UT, with upper limit up to  13.9 mag. Observations started at twilight.  The observations began at zenith distance = 74 deg. The sun  altitude  is -12.2 deg. 

The galactic latitude b = -7 deg., longitude l = 164 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1563625

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   21950 |             MASTER- |   C |    60 | 18.0 |        
   22210 |             MASTER- |   C |    60 | 15.8 |        
   22945 |             MASTER- |   C |    60 | 12.6 |        
   41008 |         MASTER-SAAO |   C |   180 | 13.9 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3857
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 210308A ( V. D'Elia et al., GCN 29619) errorbox  40899 sec after notice time and 40918 sec after trigger time at 2021-03-08 17:59:54 UT, with upper limit up to  13.9 mag. Observations started at twilight.  The observations began at zenith distance = 74 deg. The sun  altitude  is -12.2 deg. 

The galactic latitude b = -7 deg., longitude l = 164 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1563625

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   21950 |             MASTER- |   C |    60 | 18.0 |        
   22210 |             MASTER- |   C |    60 | 15.8 |        
   22945 |             MASTER- |   C |    60 | 12.6 |        
   41008 |         MASTER-SAAO |   C |   180 | 13.9 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3856
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 210308A ( V. D'Elia et al., GCN 29619) errorbox  40899 sec after notice time and 40918 sec after trigger time at 2021-03-08 17:59:54 UT, with upper limit up to  13.9 mag. Observations started at twilight.  The observations began at zenith distance = 74 deg. The sun  altitude  is -12.2 deg. 

The galactic latitude b = -7 deg., longitude l = 164 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1563625

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   21950 |             MASTER- |   C |    60 | 18.0 |        
   22210 |             MASTER- |   C |    60 | 15.8 |        
   22945 |             MASTER- |   C |    60 | 12.6 |        
   41008 |         MASTER-SAAO |   C |   180 | 13.9 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3855
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 210308A ( V. D'Elia et al., GCN 29619) errorbox  40899 sec after notice time and 40918 sec after trigger time at 2021-03-08 17:59:54 UT, with upper limit up to  13.9 mag. Observations started at twilight.  The observations began at zenith distance = 74 deg. The sun  altitude  is -12.2 deg. 

The galactic latitude b = -7 deg., longitude l = 164 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1563625

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   21950 |             MASTER- |   C |    60 | 18.0 |        
   22210 |             MASTER- |   C |    60 | 15.8 |        
   22945 |             MASTER- |   C |    60 | 12.6 |        
   41008 |         MASTER-SAAO |   C |   180 | 13.9 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3854
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 210308A ( V. D'Elia et al., GCN 29619) errorbox  40899 sec after notice time and 40918 sec after trigger time at 2021-03-08 17:59:54 UT, with upper limit up to  13.9 mag. Observations started at twilight.  The observations began at zenith distance = 74 deg. The sun  altitude  is -12.2 deg. 

The galactic latitude b = -7 deg., longitude l = 164 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1563625

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   21950 |             MASTER- |   C |    60 | 18.0 |        
   22210 |             MASTER- |   C |    60 | 15.8 |        
   22945 |             MASTER- |   C |    60 | 12.6 |        
   41008 |         MASTER-SAAO |   C |   180 | 13.9 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3853
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 210308A ( V. D'Elia et al., GCN 29619) errorbox  40899 sec after notice time and 40918 sec after trigger time at 2021-03-08 17:59:54 UT, with upper limit up to  13.9 mag. Observations started at twilight.  The observations began at zenith distance = 74 deg. The sun  altitude  is -12.2 deg. 

The galactic latitude b = -7 deg., longitude l = 164 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1563625

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   21950 |             MASTER- |   C |    60 | 18.0 |        
   22210 |             MASTER- |   C |    60 | 15.8 |        
   22945 |             MASTER- |   C |    60 | 12.6 |        
   41008 |         MASTER-SAAO |   C |   180 | 13.9 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3852
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 210308A ( V. D'Elia et al., GCN 29619) errorbox  40899 sec after notice time and 40918 sec after trigger time at 2021-03-08 17:59:54 UT, with upper limit up to  13.9 mag. Observations started at twilight.  The observations began at zenith distance = 74 deg. The sun  altitude  is -12.2 deg. 

The galactic latitude b = -7 deg., longitude l = 164 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1563625

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   21950 |             MASTER- |   C |    60 | 18.0 |        
   22210 |             MASTER- |   C |    60 | 15.8 |        
   22945 |             MASTER- |   C |    60 | 12.6 |        
   41008 |         MASTER-SAAO |   C |   180 | 13.9 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3851
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 210308A ( V. D'Elia et al., GCN 29619) errorbox  40899 sec after notice time and 40918 sec after trigger time at 2021-03-08 17:59:54 UT, with upper limit up to  13.9 mag. Observations started at twilight.  The observations began at zenith distance = 74 deg. The sun  altitude  is -12.2 deg. 

The galactic latitude b = -7 deg., longitude l = 164 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1563625

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   21950 |             MASTER- |   C |    60 | 18.0 |        
   22210 |             MASTER- |   C |    60 | 15.8 |        
   22945 |             MASTER- |   C |    60 | 12.6 |        
   41008 |         MASTER-SAAO |   C |   180 | 13.9 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3849
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 210308A ( V. D'Elia et al., GCN 29619) errorbox  40899 sec after notice time and 40918 sec after trigger time at 2021-03-08 17:59:54 UT, with upper limit up to  13.9 mag. Observations started at twilight.  The observations began at zenith distance = 74 deg. The sun  altitude  is -12.2 deg. 

The galactic latitude b = -7 deg., longitude l = 164 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1563625

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   21950 |             MASTER- |   C |    60 | 18.0 |        
   22210 |             MASTER- |   C |    60 | 15.8 |        
   22945 |             MASTER- |   C |    60 | 12.6 |        
   41008 |         MASTER-SAAO |   C |   180 | 13.9 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3848
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 210308A ( V. D'Elia et al., GCN 29619) errorbox  40899 sec after notice time and 40918 sec after trigger time at 2021-03-08 17:59:54 UT, with upper limit up to  13.9 mag. Observations started at twilight.  The observations began at zenith distance = 74 deg. The sun  altitude  is -12.2 deg. 

The galactic latitude b = -7 deg., longitude l = 164 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1563625

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   21950 |             MASTER- |   C |    60 | 18.0 |        
   22210 |             MASTER- |   C |    60 | 15.8 |        
   22945 |             MASTER- |   C |    60 | 12.6 |        
   41008 |         MASTER-SAAO |   C |   180 | 13.9 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3847
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 210308A ( V. D'Elia et al., GCN 29619) errorbox  40899 sec after notice time and 40918 sec after trigger time at 2021-03-08 17:59:54 UT, with upper limit up to  13.9 mag. Observations started at twilight.  The observations began at zenith distance = 74 deg. The sun  altitude  is -12.2 deg. 

The galactic latitude b = -7 deg., longitude l = 164 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1563625

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   21950 |             MASTER- |   C |    60 | 18.0 |        
   22210 |             MASTER- |   C |    60 | 15.8 |        
   22945 |             MASTER- |   C |    60 | 12.6 |        
   41008 |         MASTER-SAAO |   C |   180 | 13.9 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



 

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