MASTER Net MASTER Database: GRB210807.42 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 GRB210807.42
Trignum 1064221
Trigger time 2021-08-07 10:03:40.49
Notice time 2021-08-07 10:25:44.572383
Coord, eb (05h 06m 42.48s , +58d 14m 42.0s) , 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)

All alerts for this trigger
id noticetime coord2000 satel errorbox type trigger seq trig_type links
2462503 2024-05-20 01:55:46.836869 05h 06m 42.48s +58d 14m 42.0s SWIFT 0.05 retraction 1064221 1 4044 retraction
1683308 2021-08-07 10:26:41.504455 05h 06m 43.92s +58d 15m 00.0s SWIFT 0.000111111 alert 1064221 1 81 alert
1683305 2021-08-07 10:26:30.828876 05h 06m 43.44s +58d 15m 00.0s SWIFT 0 alert 1064221 1 78 alert
1683301 2021-08-07 10:26:18.416405 05h 06m 43.44s +58d 15m 00.0s SWIFT 0.00130556 alert 1064221 1 69 alert
1683286 2021-08-07 10:25:17.84955 05h 06m 53.57s +58d 13m 17.4s SWIFT 0 alert 1064221 2 68 alert
1683307 2021-08-07 10:26:38.022484 05h 06m 43.44s +58d 15m 00.0s SWIFT 0.00130556 alert 1064221 1 67 alert
1683304 2021-08-07 10:26:28.631934 05h 06m 42.48s +58d 14m 42.0s SWIFT 0.05 alert 1064221 1 61 alert

DAYS:

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

Synchronous WFC images
Distance datetime coord2000 observatory camera links
142.4 2021-08-07 10:03:37.124 17h 53m 25.00s -21d 35m 57.0s OAFA 29008 Database OAFA
Errorbox center visibility at MASTER facilities
trigger notice notice+1hr now

2021-08-07 10:03:40 (JD 2459433.919213)

Siderial time 9.645878 h

Ra 05:06:42.48 Dec 58:14:42.00
( 76.677000d, 58.245000d)

Rise n/a

Transit n/a

Set n/a

Amur

Object: Altitude: 20.07 Azimuth: 167.82

Sun: Altitude: 8.03 Azimuth: 106.03

Moon: Altitude: 6.21 Azimuth: 120.38

Tunka

Object: Altitude: 26.39 Azimuth: 154.76

Sun: Altitude: 23.38 Azimuth: 87.00

Moon: Altitude: 20.98 Azimuth: 102.30

Kislovodsk

Object: Altitude: 44.40 Azimuth: 135.24

Sun: Altitude: 60.72 Azimuth: 24.70

Moon: Altitude: 61.23 Azimuth: 54.53

Tavrida

Object: Altitude: 49.46 Azimuth: 133.09

Sun: Altitude: 61.48 Azimuth: 7.64

Moon: Altitude: 65.01 Azimuth: 38.92

SAAO

Object: Altitude: -10.19 Azimuth: 155.37

Sun: Altitude: 40.40 Azimuth: 191.89

Moon: Altitude: 33.66 Azimuth: 175.97

IAC

Object: Altitude: 58.54 Azimuth: 166.00

Sun: Altitude: 45.46 Azimuth: 275.18

Moon: Altitude: 59.54 Azimuth: 270.55

Argentina

Object: Altitude: -5.75 Azimuth: 199.41

Sun: Altitude: -16.50 Azimuth: 260.64

Moon: Altitude: -9.51 Azimuth: 247.76

Mexico

Object: Altitude: 31.13 Azimuth: 217.26

Sun: Altitude: -29.32 Azimuth: 224.29

Moon: Altitude: -15.59 Azimuth: 228.85

Ural

Object: Altitude: 45.54 Azimuth: 131.29

Sun: Altitude: 43.78 Azimuth: 40.59

Moon: Altitude: 44.97 Azimuth: 60.66

Vostryakovo

Object: Altitude: 54.17 Azimuth: 123.40

Sun: Altitude: 50.58 Azimuth: 11.50

Moon: Altitude: 54.98 Azimuth: 34.22

Gal. latitude: 10.930535 Gal. longitude: 151.914417

Dist. to Sun: 60.813217

Dist. to Moon: 48.025727

Moon coord.: (124.215934 d, 23.852614 d)

Sun coord.: (137.293957 d, 16.389698 d)

Lunar disk: 0.015681

Lunar phase: 165.612783

Lunar bright limb: 118.779863

No SN in this field

2021-08-07 10:25:44 (JD 2459433.934537)

Siderial time 10.014663 h

Ra 05:06:42.48 Dec 58:14:42.00
( 76.677000d, 58.245000d)

Rise n/a

Transit n/a

Set n/a

Amur

Object: Altitude: 19.41 Azimuth: 170.83

Sun: Altitude: 4.68 Azimuth: 110.15

Moon: Altitude: 3.32 Azimuth: 124.31

Tunka

Object: Altitude: 25.01 Azimuth: 157.60

Sun: Altitude: 19.96 Azimuth: 91.36

Moon: Altitude: 17.77 Azimuth: 106.17

Kislovodsk

Object: Altitude: 41.61 Azimuth: 136.40

Sun: Altitude: 58.75 Azimuth: 34.46

Moon: Altitude: 57.94 Azimuth: 61.63

Tavrida

Object: Altitude: 46.61 Azimuth: 133.98

Sun: Altitude: 60.59 Azimuth: 18.43

Moon: Altitude: 62.37 Azimuth: 48.18

SAAO

Object: Altitude: -12.22 Azimuth: 153.24

Sun: Altitude: 41.09 Azimuth: 184.96

Moon: Altitude: 33.15 Azimuth: 170.17

IAC

Object: Altitude: 57.16 Azimuth: 161.18

Sun: Altitude: 50.28 Azimuth: 278.44

Moon: Altitude: 64.22 Azimuth: 273.45

Argentina

Object: Altitude: -4.28 Azimuth: 196.89

Sun: Altitude: -11.89 Azimuth: 257.96

Moon: Altitude: -5.35 Azimuth: 245.22

Mexico

Object: Altitude: 34.01 Azimuth: 217.71

Sun: Altitude: -25.89 Azimuth: 228.84

Moon: Altitude: -12.09 Azimuth: 232.34

Ural

Object: Altitude: 43.33 Azimuth: 133.93

Sun: Altitude: 41.69 Azimuth: 47.21

Moon: Altitude: 42.36 Azimuth: 66.33

Vostryakovo

Object: Altitude: 51.58 Azimuth: 125.60

Sun: Altitude: 49.73 Azimuth: 19.66

Moon: Altitude: 53.09 Azimuth: 41.86

Gal. latitude: 10.930535 Gal. longitude: 151.914417

Dist. to Sun: 60.824255

Dist. to Moon: 48.154531

Moon coord.: (124.425458 d, 23.819013 d)

Sun coord.: (137.308603 d, 16.385401 d)

Lunar disk: 0.015314

Lunar phase: 165.782907

Lunar bright limb: 119.097381

No SN in this field

2021-08-07 11:25:44 (JD 2459433.976204)

Siderial time 11.017401 h

Ra 05:06:42.48 Dec 58:14:42.00
( 76.677000d, 58.245000d)

Rise n/a

Transit n/a

Set n/a

Amur

Object: Altitude: 18.57 Azimuth: 179.14

Sun: Altitude: -3.93 Azimuth: 121.69

Moon: Altitude: -3.85 Azimuth: 135.45

Tunka

Object: Altitude: 22.07 Azimuth: 165.60

Sun: Altitude: 10.77 Azimuth: 102.85

Moon: Altitude: 9.38 Azimuth: 116.72

Kislovodsk

Object: Altitude: 34.39 Azimuth: 140.46

Sun: Altitude: 51.02 Azimuth: 55.76

Moon: Altitude: 48.11 Azimuth: 76.52

Tavrida

Object: Altitude: 39.13 Azimuth: 137.48

Sun: Altitude: 55.04 Azimuth: 43.58

Moon: Altitude: 53.60 Azimuth: 67.10

SAAO

Object: Altitude: -18.44 Azimuth: 148.20

Sun: Altitude: 40.10 Azimuth: 166.02

Moon: Altitude: 29.59 Azimuth: 155.22

IAC

Object: Altitude: 51.74 Azimuth: 151.26

Sun: Altitude: 63.06 Azimuth: 290.67

Moon: Altitude: 76.74 Azimuth: 287.01

Argentina

Object: Altitude: -1.35 Azimuth: 189.55

Sun: Altitude: 0.38 Azimuth: 250.38

Moon: Altitude: 5.51 Azimuth: 237.63

Mexico

Object: Altitude: 41.91 Azimuth: 217.51

Sun: Altitude: -15.47 Azimuth: 239.47

Moon: Altitude: -1.80 Azimuth: 240.74

Ural

Object: Altitude: 37.81 Azimuth: 141.39

Sun: Altitude: 34.98 Azimuth: 63.48

Moon: Altitude: 34.75 Azimuth: 80.23

Vostryakovo

Object: Altitude: 44.92 Azimuth: 132.00

Sun: Altitude: 45.46 Azimuth: 40.12

Moon: Altitude: 46.62 Azimuth: 59.88

Gal. latitude: 10.930535 Gal. longitude: 151.914417

Dist. to Sun: 60.854272

Dist. to Moon: 48.506631

Moon coord.: (124.994934 d, 23.726162 d)

Sun coord.: (137.348424 d, 16.373711 d)

Lunar disk: 0.014340

Lunar phase: 166.244493

Lunar bright limb: 119.989899

No SN in this field

2025-03-13 07:34:20 (JD 2460747.815509)

Siderial time 21.492885 h

Ra 05:06:42.48 Dec 58:14:42.00
( 76.677000d, 58.245000d)

Rise n/a

Transit n/a

Set n/a

Amur

Object: Altitude: 73.82 Azimuth: 231.33

Sun: Altitude: 16.79 Azimuth: 63.44

Moon: Altitude: -6.78 Azimuth: 247.98

Tunka

Object: Altitude: 61.94 Azimuth: 237.39

Sun: Altitude: 27.91 Azimuth: 39.94

Moon: Altitude: -18.88 Azimuth: 226.70

Kislovodsk

Object: Altitude: 27.50 Azimuth: 214.04

Sun: Altitude: 37.84 Azimuth: 326.43

Moon: Altitude: -35.73 Azimuth: 159.85

Tavrida

Object: Altitude: 25.06 Azimuth: 210.90

Sun: Altitude: 33.31 Azimuth: 317.48

Moon: Altitude: -32.27 Azimuth: 150.46

SAAO

Object: Altitude: -48.37 Azimuth: 216.66

Sun: Altitude: 36.56 Azimuth: 246.74

Moon: Altitude: -47.37 Azimuth: 64.40

IAC

Object: Altitude: -2.91 Azimuth: 186.08

Sun: Altitude: 3.04 Azimuth: 274.97

Moon: Altitude: -8.58 Azimuth: 104.47

Argentina

Object: Altitude: -51.67 Azimuth: 145.99

Sun: Altitude: -36.99 Azimuth: 302.84

Moon: Altitude: 26.32 Azimuth: 119.96

Mexico

Object: Altitude: 22.22 Azimuth: 145.71

Sun: Altitude: -61.85 Azimuth: 182.46

Moon: Altitude: 65.30 Azimuth: 25.99

Ural

Object: Altitude: 44.56 Azimuth: 227.56

Sun: Altitude: 29.60 Azimuth: 349.75

Moon: Altitude: -24.52 Azimuth: 180.65

Vostryakovo

Object: Altitude: 35.29 Azimuth: 216.06

Sun: Altitude: 26.49 Azimuth: 325.34

Moon: Altitude: -23.79 Azimuth: 157.06

Gal. latitude: 10.930535 Gal. longitude: 151.914417

Dist. to Sun: 89.051715

Dist. to Moon: 81.275269

Moon coord.: (163.719647 d, 8.441807 d)

Sun coord.: (353.228730 d, -2.927110 d)

Lunar disk: 0.990958

Lunar phase: 10.912653

Lunar bright limb: 299.694320

No SN in this field

Recent coverage and limits telegrams

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

  ID = 4787
TYPE = 35
DAYS = 1


MASTER-Tavrida robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Russia (Lomonosov MSU, SAI Crimea astronomical station) was pointed to the SWIFT GRB 210807A ( A. Y. Lien et al., GCN 30600) errorbox  32639 sec after notice time and 33871 sec after trigger time at 2021-08-07 19:28:12 UT, with upper limit up to  18.2 mag. The observations began at zenith distance = 76 deg. The sun  altitude  is -21.7 deg. 

The galactic latitude b = 11 deg., longitude l = 152 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1683288

We obtain a following upper limits.  

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

   33962 |      MASTER-Tavrida |   C |   180 | 13.4 |        
   35859 |      MASTER-Tavrida |   C |   180 | 16.6 |        
   39616 |      MASTER-Tavrida |   C |   180 | 14.5 |        
   42263 |      MASTER-Tavrida |   C |   180 | 18.2 |        
   42760 |      MASTER-Tavrida |   C |   180 | 17.6 |        
   43749 |      MASTER-Tavrida |   C |   180 | 15.9 |        
   44758 |      MASTER-Tavrida |   C |   180 | 15.7 |        
   53874 |      MASTER-Tavrida |   C |   180 | 17.0 |        
   54593 |      MASTER-Tavrida |   C |   180 | 15.0 |        
Filter C is a clear (unfiltred) band. 


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



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

  ID = 4772
TYPE = 35
DAYS = 0.5


MASTER-Tavrida robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Russia (Lomonosov MSU, SAI Crimea astronomical station) was pointed to the SWIFT GRB 210807A ( A. Y. Lien et al., GCN 30600) errorbox  32639 sec after notice time and 33871 sec after trigger time at 2021-08-07 19:28:12 UT, with upper limit up to  18.2 mag. The observations began at zenith distance = 76 deg. The sun  altitude  is -21.7 deg. 

The galactic latitude b = 11 deg., longitude l = 152 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1683281

We obtain a following upper limits.  

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

   33962 |      MASTER-Tavrida |   C |   180 | 13.4 |        
   35859 |      MASTER-Tavrida |   C |   180 | 16.6 |        
   39616 |      MASTER-Tavrida |   C |   180 | 14.5 |        
   42263 |      MASTER-Tavrida |   C |   180 | 18.2 |        
   42760 |      MASTER-Tavrida |   C |   180 | 17.6 |        
Filter C is a clear (unfiltred) band. 


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



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

  ID = 4767
TYPE = 35
DAYS = 0


MASTER-Tavrida robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Russia (Lomonosov MSU, SAI Crimea astronomical station) was pointed to the SWIFT GRB 210807A ( A. Y. Lien et al., GCN 30600) errorbox  32639 sec after notice time and 33871 sec after trigger time at 2021-08-07 19:28:12 UT, with upper limit up to  16.6 mag. The observations began at zenith distance = 76 deg. The sun  altitude  is -21.7 deg. 

The galactic latitude b = 11 deg., longitude l = 152 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1683291

We obtain a following upper limits.  

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

   33962 |      MASTER-Tavrida |   C |   180 | 13.4 |        
   35859 |      MASTER-Tavrida |   C |   180 | 16.6 |        
Filter C is a clear (unfiltred) band. 


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



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

  ID = 4766
TYPE = 35
DAYS = 0


MASTER-Tavrida robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Russia (Lomonosov MSU, SAI Crimea astronomical station) was pointed to the SWIFT GRB 210807A ( A. Y. Lien et al., GCN 30600) errorbox  32639 sec after notice time and 33871 sec after trigger time at 2021-08-07 19:28:12 UT, with upper limit up to  16.6 mag. The observations began at zenith distance = 76 deg. The sun  altitude  is -21.7 deg. 

The galactic latitude b = 11 deg., longitude l = 152 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1683291

We obtain a following upper limits.  

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

   33962 |      MASTER-Tavrida |   C |   180 | 13.4 |        
   35859 |      MASTER-Tavrida |   C |   180 | 16.6 |        
Filter C is a clear (unfiltred) band. 


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



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

  ID = 4765
TYPE = 34
DAYS = 0


MASTER-Tavrida robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Russia (Lomonosov MSU, SAI Crimea astronomical station) was pointed to the SWIFT GRB 210807A ( A. Y. Lien et al., GCN 30600) errorbox  32639 sec after notice time and 33871 sec after trigger time at 2021-08-07 19:28:12 UT, with upper limit up to  16.6 mag. The observations began at zenith distance = 76 deg. The sun  altitude  is -21.7 deg. 

The galactic latitude b = 11 deg., longitude l = 152 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1683291

We obtain a following upper limits.  

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

   33962 |      MASTER-Tavrida |   C |   180 | 13.4 |        
   35859 |      MASTER-Tavrida |   C |   180 | 16.6 |        
Filter C is a clear (unfiltred) band. 


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



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

  ID = 4764
TYPE = 35
DAYS = 0


MASTER-Tavrida robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Russia (Lomonosov MSU, SAI Crimea astronomical station) was pointed to the SWIFT GRB 210807A ( A. Y. Lien et al., GCN 30600) errorbox  32639 sec after notice time and 33871 sec after trigger time at 2021-08-07 19:28:12 UT, with upper limit up to  13.4 mag. The observations began at zenith distance = 76 deg. The sun  altitude  is -21.7 deg. 

The galactic latitude b = 11 deg., longitude l = 152 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1683291

We obtain a following upper limits.  

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

   33962 |      MASTER-Tavrida |   C |   180 | 13.4 |        
Filter C is a clear (unfiltred) band. 


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



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

  ID = 4763
TYPE = 35
DAYS = 0


MASTER-Tavrida robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Russia (Lomonosov MSU, SAI Crimea astronomical station) was pointed to the SWIFT GRB 210807A ( A. Y. Lien et al., GCN 30600) errorbox  32639 sec after notice time and 33871 sec after trigger time at 2021-08-07 19:28:12 UT, with upper limit up to  13.4 mag. The observations began at zenith distance = 76 deg. The sun  altitude  is -21.7 deg. 

The galactic latitude b = 11 deg., longitude l = 152 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1683291

We obtain a following upper limits.  

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

   33962 |      MASTER-Tavrida |   C |   180 | 13.4 |        
Filter C is a clear (unfiltred) band. 


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



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

  ID = 4762
TYPE = 35
DAYS = 0


MASTER-Tavrida robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Russia (Lomonosov MSU, SAI Crimea astronomical station) was pointed to the SWIFT GRB 210807A ( A. Y. Lien et al., GCN 30600) errorbox  32639 sec after notice time and 33871 sec after trigger time at 2021-08-07 19:28:12 UT, with upper limit up to  13.4 mag. The observations began at zenith distance = 76 deg. The sun  altitude  is -21.7 deg. 

The galactic latitude b = 11 deg., longitude l = 152 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1683291

We obtain a following upper limits.  

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

   33962 |      MASTER-Tavrida |   C |   180 | 13.4 |        
Filter C is a clear (unfiltred) band. 


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



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

  ID = 4761
TYPE = 35
DAYS = 0


MASTER-Tavrida robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Russia (Lomonosov MSU, SAI Crimea astronomical station) was pointed to the SWIFT GRB 210807A ( A. Y. Lien et al., GCN 30600) errorbox  32639 sec after notice time and 33871 sec after trigger time at 2021-08-07 19:28:12 UT, with upper limit up to  13.4 mag. The observations began at zenith distance = 76 deg. The sun  altitude  is -21.7 deg. 

The galactic latitude b = 11 deg., longitude l = 152 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1683291

We obtain a following upper limits.  

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

   33962 |      MASTER-Tavrida |   C |   180 | 13.4 |        
Filter C is a clear (unfiltred) band. 


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



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

  ID = 4760
TYPE = 35
DAYS = 0


MASTER-Tavrida robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Russia (Lomonosov MSU, SAI Crimea astronomical station) was pointed to the SWIFT GRB 210807A ( A. Y. Lien et al., GCN 30600) errorbox  32639 sec after notice time and 33871 sec after trigger time at 2021-08-07 19:28:12 UT, with upper limit up to  13.4 mag. The observations began at zenith distance = 76 deg. The sun  altitude  is -21.7 deg. 

The galactic latitude b = 11 deg., longitude l = 152 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1683291

We obtain a following upper limits.  

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

   33962 |      MASTER-Tavrida |   C |   180 | 13.4 |        
Filter C is a clear (unfiltred) band. 


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



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

  ID = 4759
TYPE = 35
DAYS = 0


MASTER-Tavrida robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Russia (Lomonosov MSU, SAI Crimea astronomical station) was pointed to the SWIFT GRB 210807A ( A. Y. Lien et al., GCN 30600) errorbox  32639 sec after notice time and 33871 sec after trigger time at 2021-08-07 19:28:12 UT, with upper limit up to  13.4 mag. The observations began at zenith distance = 76 deg. The sun  altitude  is -21.7 deg. 

The galactic latitude b = 11 deg., longitude l = 152 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1683291

We obtain a following upper limits.  

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

   33962 |      MASTER-Tavrida |   C |   180 | 13.4 |        
Filter C is a clear (unfiltred) band. 


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



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

  ID = 4758
TYPE = 35
DAYS = 0


MASTER-Tavrida robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Russia (Lomonosov MSU, SAI Crimea astronomical station) was pointed to the SWIFT GRB 210807A ( A. Y. Lien et al., GCN 30600) errorbox  32639 sec after notice time and 33871 sec after trigger time at 2021-08-07 19:28:12 UT, with upper limit up to  13.4 mag. The observations began at zenith distance = 76 deg. The sun  altitude  is -21.7 deg. 

The galactic latitude b = 11 deg., longitude l = 152 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1683291

We obtain a following upper limits.  

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

   33962 |      MASTER-Tavrida |   C |   180 | 13.4 |        
Filter C is a clear (unfiltred) band. 


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



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

  ID = 4754
TYPE = 35
DAYS = 0


MASTER-Tavrida robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Russia (Lomonosov MSU, SAI Crimea astronomical station) was pointed to the SWIFT GRB 210807A ( A. Y. Lien et al., GCN 30600) errorbox  32639 sec after notice time and 33871 sec after trigger time at 2021-08-07 19:28:12 UT, with upper limit up to  13.4 mag. The observations began at zenith distance = 76 deg. The sun  altitude  is -21.7 deg. 

The galactic latitude b = 11 deg., longitude l = 152 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1683291

We obtain a following upper limits.  

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

   33962 |      MASTER-Tavrida |   C |   180 | 13.4 |        
Filter C is a clear (unfiltred) band. 


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



 

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