MASTER Net MASTER Database: GRB210919.02 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 GRB210919.02
Trignum 1073893
Trigger time 2021-09-19 00:28:33.55
Notice time 2021-09-19 00:35:40.177629
Coord, eb (05h 20m 55.20s , +01d 16m 26.4s) , 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You are viewing outdated information, relevant error box is here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
1754297 2021-10-16 22:45:22.737515 05h 21m 01.32s +01d 18m 44.3s SWIFT 0.0018 retraction 1073893 1 4044 retraction
1726014 2021-09-19 02:00:17.159381 05h 21m 00.96s +01d 18m 39.6s SWIFT 0.00169444 alert 1073893 8 67 alert
1725973 2021-09-19 01:14:29.01705 05h 20m 55.20s +01d 16m 26.4s SWIFT 0.05 alert 1073893 5 61 alert

DAYS:

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

Synchronous WFC images
Distance datetime coord2000 observatory camera links
127.8 2021-09-19 00:27:31.708 19h 10m 16.00s -47d 46m 45.0s OAFA 29008 Database OAFA
80.2 2021-09-19 00:25:33.67 00h 00m 00.00s +00d 00m 00.0s IAC 100627 Database IAC
80.2 2021-09-19 00:27:30.188 00h 00m 00.00s +00d 00m 00.0s IAC 111343 Database IAC
Errorbox center visibility at MASTER facilities
trigger notice notice+1hr now

2021-09-19 00:28:33 (JD 2459476.519826)

Siderial time 2.859879 h

Ra 05:20:55.20 Dec 01:16:26.40
( 80.230000d, 1.274000d)

Rise 2021-09-18 23:46:58

Transit 2021-09-19 05:57:28

Set 2021-09-19 12:07:58

Amur

Object: Altitude: 23.92 Azimuth: 60.23

Sun: Altitude: 28.94 Azimuth: 308.07

Moon: Altitude: -50.48 Azimuth: 143.58

Tunka

Object: Altitude: 34.24 Azimuth: 34.74

Sun: Altitude: 14.68 Azimuth: 286.66

Moon: Altitude: -37.75 Azimuth: 116.02

Kislovodsk

Object: Altitude: 38.68 Azimuth: 316.63

Sun: Altitude: -25.51 Azimuth: 240.05

Moon: Altitude: 1.78 Azimuth: 66.47

Tavrida

Object: Altitude: 33.52 Azimuth: 308.22

Sun: Altitude: -30.01 Azimuth: 231.89

Moon: Altitude: 6.79 Azimuth: 60.26

SAAO

Object: Altitude: 28.86 Azimuth: 247.69

Sun: Altitude: -48.39 Azimuth: 311.65

Moon: Altitude: 41.55 Azimuth: 98.05

IAC

Object: Altitude: -0.68 Azimuth: 268.19

Sun: Altitude: -59.24 Azimuth: 165.10

Moon: Altitude: 44.47 Azimuth: 17.59

Argentina

Object: Altitude: -44.55 Azimuth: 305.01

Sun: Altitude: -25.76 Azimuth: 74.76

Moon: Altitude: 50.27 Azimuth: 255.22

Mexico

Object: Altitude: -57.28 Azimuth: 170.10

Sun: Altitude: 10.61 Azimuth: 85.42

Moon: Altitude: -0.44 Azimuth: 287.87

Ural

Object: Altitude: 32.89 Azimuth: 341.56

Sun: Altitude: -10.14 Azimuth: 250.87

Moon: Altitude: -12.39 Azimuth: 80.60

Vostryakovo

Object: Altitude: 28.10 Azimuth: 316.82

Sun: Altitude: -21.48 Azimuth: 231.50

Moon: Altitude: -0.45 Azimuth: 62.72

Gal. latitude: -18.817487 Gal. longitude: 201.282008

Dist. to Sun: 96.060697

Dist. to Moon: 104.205526

Moon coord.: (335.839184 d, -15.470816 d)

Sun coord.: (176.330112 d, 1.589912 d)

Lunar disk: 0.955128

Lunar phase: 24.459300

Lunar bright limb: 237.487582

No SN in this field

2021-09-19 00:35:40 (JD 2459476.524769)

Siderial time 2.978815 h

Ra 05:20:55.20 Dec 01:16:26.40
( 80.230000d, 1.274000d)

Rise 2021-09-18 23:46:58

Transit 2021-09-19 05:57:28

Set 2021-09-19 12:07:58

Amur

Object: Altitude: 22.92 Azimuth: 61.84

Sun: Altitude: 29.82 Azimuth: 309.85

Moon: Altitude: -51.09 Azimuth: 146.02

Tunka

Object: Altitude: 33.60 Azimuth: 36.75

Sun: Altitude: 15.73 Azimuth: 288.15

Moon: Altitude: -38.68 Azimuth: 117.77

Kislovodsk

Object: Altitude: 39.55 Azimuth: 318.64

Sun: Altitude: -24.39 Azimuth: 241.57

Moon: Altitude: 0.66 Azimuth: 67.69

Tavrida

Object: Altitude: 34.50 Azimuth: 310.01

Sun: Altitude: -29.00 Azimuth: 233.57

Moon: Altitude: 5.74 Azimuth: 61.55

SAAO

Object: Altitude: 30.25 Azimuth: 246.40

Sun: Altitude: -47.25 Azimuth: 309.62

Moon: Altitude: 40.10 Azimuth: 96.99

IAC

Object: Altitude: 0.89 Azimuth: 269.03

Sun: Altitude: -59.60 Azimuth: 168.52

Moon: Altitude: 44.01 Azimuth: 19.82

Argentina

Object: Altitude: -43.29 Azimuth: 303.25

Sun: Altitude: -27.21 Azimuth: 73.61

Moon: Altitude: 51.67 Azimuth: 253.80

Mexico

Object: Altitude: -57.50 Azimuth: 173.38

Sun: Altitude: 9.09 Azimuth: 86.36

Moon: Altitude: 0.97 Azimuth: 288.73

Ural

Object: Altitude: 33.18 Azimuth: 343.66

Sun: Altitude: -9.23 Azimuth: 252.42

Moon: Altitude: -13.29 Azimuth: 82.03

Vostryakovo

Object: Altitude: 28.78 Azimuth: 318.69

Sun: Altitude: -20.68 Azimuth: 233.20

Moon: Altitude: -1.30 Azimuth: 64.15

Gal. latitude: -18.817487 Gal. longitude: 201.282008

Dist. to Sun: 96.065172

Dist. to Moon: 104.145397

Moon coord.: (335.902774 d, -15.447046 d)

Sun coord.: (176.334542 d, 1.587997 d)

Lunar disk: 0.955343

Lunar phase: 24.399666

Lunar bright limb: 237.444727

No SN in this field

2021-09-19 01:35:40 (JD 2459476.566435)

Siderial time 3.981553 h

Ra 05:20:55.20 Dec 01:16:26.40
( 80.230000d, 1.274000d)

Rise 2021-09-18 23:46:58

Transit 2021-09-19 05:57:28

Set 2021-09-19 12:07:58

Amur

Object: Altitude: 14.01 Azimuth: 74.64

Sun: Altitude: 36.22 Azimuth: 326.06

Moon: Altitude: -54.49 Azimuth: 168.57

Tunka

Object: Altitude: 27.07 Azimuth: 52.47

Sun: Altitude: 24.13 Azimuth: 301.39

Moon: Altitude: -45.77 Azimuth: 134.12

Kislovodsk

Object: Altitude: 45.32 Azimuth: 337.52

Sun: Altitude: -14.39 Azimuth: 253.45

Moon: Altitude: -9.20 Azimuth: 77.66

Tavrida

Object: Altitude: 41.60 Azimuth: 326.90

Sun: Altitude: -19.78 Azimuth: 246.59

Moon: Altitude: -3.57 Azimuth: 72.00

SAAO

Object: Altitude: 41.27 Azimuth: 233.74

Sun: Altitude: -36.54 Azimuth: 295.43

Moon: Altitude: 27.78 Azimuth: 88.97

IAC

Object: Altitude: 14.11 Azimuth: 276.28

Sun: Altitude: -58.84 Azimuth: 198.04

Moon: Altitude: 38.11 Azimuth: 36.68

Argentina

Object: Altitude: -31.90 Azimuth: 290.80

Sun: Altitude: -39.03 Azimuth: 62.54

Moon: Altitude: 62.83 Azimuth: 237.97

Mexico

Object: Altitude: -55.88 Azimuth: 200.80

Sun: Altitude: -3.77 Azimuth: 94.11

Moon: Altitude: 12.55 Azimuth: 296.65

Ural

Object: Altitude: 34.23 Azimuth: 1.71

Sun: Altitude: -1.25 Azimuth: 265.18

Moon: Altitude: -21.00 Azimuth: 94.26

Vostryakovo

Object: Altitude: 33.43 Azimuth: 335.42

Sun: Altitude: -13.32 Azimuth: 246.88

Moon: Altitude: -8.87 Azimuth: 75.97

Gal. latitude: -18.817487 Gal. longitude: 201.282008

Dist. to Sun: 96.102907

Dist. to Moon: 103.638521

Moon coord.: (336.438115 d, -15.245998 d)

Sun coord.: (176.371895 d, 1.571844 d)

Lunar disk: 0.957136

Lunar phase: 23.897317

Lunar bright limb: 237.079421

No SN in this field

2025-04-11 14:15:16 (JD 2460777.093935)

Siderial time 6.098987 h

Ra 05:20:55.20 Dec 01:16:26.40
( 80.230000d, 1.274000d)

Rise 2025-04-12 10:15:56

Transit 2025-04-12 16:26:26

Set 2025-04-12 22:36:56

Amur

Object: Altitude: -6.08 Azimuth: 99.41

Sun: Altitude: -29.07 Azimuth: 158.83

Moon: Altitude: 36.38 Azimuth: 355.11

Tunka

Object: Altitude: 9.19 Azimuth: 80.26

Sun: Altitude: -19.39 Azimuth: 134.31

Moon: Altitude: 29.97 Azimuth: 326.81

Kislovodsk

Object: Altitude: 45.16 Azimuth: 23.24

Sun: Altitude: 15.60 Azimuth: 86.75

Moon: Altitude: -1.41 Azimuth: 273.07

Tavrida

Object: Altitude: 46.02 Azimuth: 11.05

Sun: Altitude: 21.54 Azimuth: 80.25

Moon: Altitude: -7.50 Azimuth: 267.05

SAAO

Object: Altitude: 55.94 Azimuth: 189.95

Sun: Altitude: 23.83 Azimuth: 118.01

Moon: Altitude: -15.49 Azimuth: 284.13

IAC

Object: Altitude: 40.97 Azimuth: 295.73

Sun: Altitude: 64.23 Azimuth: 42.88

Moon: Altitude: -50.48 Azimuth: 236.41

Argentina

Object: Altitude: -5.51 Azimuth: 271.92

Sun: Altitude: 37.44 Azimuth: 226.22

Moon: Altitude: -49.83 Azimuth: 33.26

Mexico

Object: Altitude: -37.76 Azimuth: 240.05

Sun: Altitude: 15.89 Azimuth: 269.64

Moon: Altitude: -25.65 Azimuth: 102.53

Ural

Object: Altitude: 28.29 Azimuth: 38.41

Sun: Altitude: 5.19 Azimuth: 97.48

Moon: Altitude: 7.02 Azimuth: 287.04

Vostryakovo

Object: Altitude: 35.10 Azimuth: 14.03

Sun: Altitude: 17.26 Azimuth: 79.62

Moon: Altitude: -4.68 Azimuth: 268.84

Gal. latitude: -18.817487 Gal. longitude: 201.282008

Dist. to Sun: 60.421167

Dist. to Moon: 105.103683

Moon coord.: (185.287937 d, -3.192550 d)

Sun coord.: (19.954540 d, 8.420027 d)

Lunar disk: 0.981957

Lunar phase: 15.439187

Lunar bright limb: 290.351723

No SN in this field
Recent coverage and limits telegrams

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

  ID = 5071
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 210919A ( A. Tohuvavohu et al., GCN 30846) errorbox 47 sec after trigger time at 2021-09-19 00:29:20 UT, with upper limit up to  18.9 mag. The observations began at zenith distance = 61 deg. The sun  altitude  is -49.0 deg. 

MASTER-Kislovodsk robotic telescope  located in Russia (Lomonosov MSU, Kislovodsk Solar Station of Pulkovo observatory) was pointed to the SWIFT GRB 210919A errorbox  363 sec after notice time and 790 sec after trigger time at 2021-09-19 00:41:44 UT, with upper limit up to  16.8 mag. The observations began at zenith distance = 50 deg. The sun  altitude  is -24.1 deg. 

MASTER-Tavrida robotic telescope  located in Russia (Lomonosov MSU, SAI Crimea astronomical station) was pointed to the SWIFT GRB 210919A errorbox  6103 sec after notice time and 6530 sec after trigger time at 2021-09-19 02:17:24 UT, with upper limit up to  18.4 mag. Observations started at twilight.  The observations began at zenith distance = 44 deg. The sun  altitude  is -13.0 deg. 

The galactic latitude b = -19 deg., longitude l = 201 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1725970

We obtain a following upper limits.  

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

      52 |         MASTER-SAAO | P\  |    10 | 16.1 |        
      67 |         MASTER-SAAO | P\  |    40 | 17.0 |  Coadd 
     397 |         MASTER-SAAO | P\  |   700 | 18.4 |  Coadd 
      77 |         MASTER-SAAO | P\  |    10 | 16.4 |        
     103 |         MASTER-SAAO | P\  |    20 | 16.6 |        
     141 |         MASTER-SAAO | P\  |    30 | 16.0 |        
     176 |         MASTER-SAAO | P\  |   100 | 16.6 |  Coadd 
     183 |         MASTER-SAAO | P\  |    30 | 14.7 |        
     230 |         MASTER-SAAO | P\  |    40 | 16.4 |        
     288 |         MASTER-SAAO | P\  |    50 | 15.9 |        
     358 |         MASTER-SAAO | P\  |   190 | 16.6 |  Coadd 
     355 |         MASTER-SAAO | P\  |    60 | 15.1 |        
     437 |         MASTER-SAAO | P\  |    80 | 16.4 |        
     541 |         MASTER-SAAO | P\  |   100 | 17.8 |        
     676 |         MASTER-SAAO | P\  |   370 | 18.6 |  Coadd 
     662 |         MASTER-SAAO | P\  |   120 | 17.8 |        
     810 |         MASTER-SAAO | P\  |   150 | 18.1 |        
     871 |   MASTER-Kislovodsk |  P| |   160 | 14.2 |        
     987 |         MASTER-SAAO | P\  |   180 | 17.5 |        
    1167 |         MASTER-SAAO | P\  |   540 | 17.9 |  Coadd 
    1048 |   MASTER-Kislovodsk |  P- |   180 | 12.4 |        
    1048 |   MASTER-Kislovodsk |  P| |   180 | 14.1 |        
    1188 |         MASTER-SAAO | P\  |   180 | 17.4 |        
    1249 |   MASTER-Kislovodsk |  P- |   180 | 12.9 |        
    1429 |   MASTER-Kislovodsk |  P- |   540 | 14.3 |  Coadd 
    1249 |   MASTER-Kislovodsk |  P| |   180 | 14.2 |        
    1387 |         MASTER-SAAO | P\  |   180 | 17.4 |        
    1449 |   MASTER-Kislovodsk |  P- |   180 | 13.4 |        
    1449 |   MASTER-Kislovodsk |  P| |   180 | 14.3 |        
    1629 |   MASTER-Kislovodsk |  P| |   540 | 15.1 |  Coadd 
    1587 |         MASTER-SAAO | P\  |   180 | 17.4 |        
    1767 |         MASTER-SAAO | P\  |   540 | 18.0 |  Coadd 
    1650 |   MASTER-Kislovodsk |  P- |   180 | 13.6 |        
    1786 |         MASTER-SAAO | P\  |   180 | 17.5 |        
    1850 |   MASTER-Kislovodsk |  P- |   180 | 14.0 |        
    2030 |   MASTER-Kislovodsk |  P- |   540 | 14.8 |  Coadd 
    1850 |   MASTER-Kislovodsk |  P| |   180 | 14.4 |        
    1986 |         MASTER-SAAO | P\  |   180 | 17.5 |        
    2051 |   MASTER-Kislovodsk |  P- |   180 | 14.3 |        
    2051 |   MASTER-Kislovodsk |  P| |   180 | 14.5 |        
    2185 |         MASTER-SAAO | P\  |   180 | 17.5 |        
    2365 |         MASTER-SAAO | P\  |   540 | 16.8 |  Coadd 
    2252 |   MASTER-Kislovodsk |  P- |   180 | 14.4 |        
    2252 |   MASTER-Kislovodsk |  P| |   180 | 14.5 |        
    2432 |   MASTER-Kislovodsk |  P| |   540 | 16.4 |  Coadd 
    2385 |         MASTER-SAAO | P\  |   180 | 15.8 |        
    2784 |         MASTER-SAAO | P\  |   180 | 14.8 |        
    2983 |         MASTER-SAAO | P\  |   180 | 17.5 |        
    3163 |         MASTER-SAAO | P\  |   540 | 17.6 |  Coadd 
    3183 |         MASTER-SAAO | P\  |   180 | 16.6 |        
    3382 |         MASTER-SAAO | P\  |   180 | 17.0 |        
    3724 |   MASTER-Kislovodsk |   C |   180 | 16.4 |        
    3724 |   MASTER-Kislovodsk |   C |   180 | 15.9 |        
    3796 |         MASTER-SAAO | P\  |   180 | 15.3 |        
    3995 |         MASTER-SAAO | P\  |   180 | 14.9 |        
    4005 |   MASTER-Kislovodsk |   C |   180 | 16.8 |        
    4005 |   MASTER-Kislovodsk |   C |   180 | 16.0 |        
    4194 |         MASTER-SAAO | P\  |   180 | 15.0 |        
    4374 |         MASTER-SAAO | P\  |   540 | 16.1 |  Coadd 
    4394 |         MASTER-SAAO | P\  |   180 | 14.0 |        
    4793 |         MASTER-SAAO | P\  |   180 | 16.3 |        
    4992 |         MASTER-SAAO | P\  |   180 | 15.0 |        
    5826 |   MASTER-Kislovodsk |   C |   180 | 14.5 |        
    6621 |      MASTER-Tavrida |   C |   180 | 15.5 |        
    6801 |      MASTER-Tavrida |   C |   540 | 18.3 |  Coadd 
    6820 |      MASTER-Tavrida |   C |   180 | 17.4 |        
    7019 |      MASTER-Tavrida |   C |   180 | 18.4 |        
    7218 |      MASTER-Tavrida |   C |   180 | 17.9 |        
    7931 |         MASTER-SAAO |   C |   180 | 18.9 |        
    9751 |         MASTER-SAAO |   C |   180 | 17.1 |        
   10704 |         MASTER-SAAO |   C |   180 | 17.3 |        
   11787 |         MASTER-SAAO |   C |   180 | 15.9 |        
   77811 |      MASTER-Tavrida |   C |   180 | 16.4 |        
   79015 |      MASTER-Tavrida |   C |   180 | 17.2 |        
   79416 |      MASTER-Tavrida |   C |   180 | 17.1 |        
Filter C is a clear (unfiltred) band. 


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



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

  ID = 5070
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 210919A ( A. Tohuvavohu et al., GCN 30846) errorbox 47 sec after trigger time at 2021-09-19 00:29:20 UT, with upper limit up to  18.9 mag. The observations began at zenith distance = 61 deg. The sun  altitude  is -49.0 deg. 

MASTER-Kislovodsk robotic telescope  located in Russia (Lomonosov MSU, Kislovodsk Solar Station of Pulkovo observatory) was pointed to the SWIFT GRB 210919A errorbox  363 sec after notice time and 790 sec after trigger time at 2021-09-19 00:41:44 UT, with upper limit up to  16.8 mag. The observations began at zenith distance = 50 deg. The sun  altitude  is -24.1 deg. 

MASTER-Tavrida robotic telescope  located in Russia (Lomonosov MSU, SAI Crimea astronomical station) was pointed to the SWIFT GRB 210919A errorbox  6103 sec after notice time and 6530 sec after trigger time at 2021-09-19 02:17:24 UT, with upper limit up to  18.4 mag. Observations started at twilight.  The observations began at zenith distance = 44 deg. The sun  altitude  is -13.0 deg. 

The galactic latitude b = -19 deg., longitude l = 201 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1725970

We obtain a following upper limits.  

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

      52 |         MASTER-SAAO | P\  |    10 | 16.1 |        
      67 |         MASTER-SAAO | P\  |    40 | 17.0 |  Coadd 
     397 |         MASTER-SAAO | P\  |   700 | 18.4 |  Coadd 
      77 |         MASTER-SAAO | P\  |    10 | 16.4 |        
     103 |         MASTER-SAAO | P\  |    20 | 16.6 |        
     141 |         MASTER-SAAO | P\  |    30 | 16.0 |        
     176 |         MASTER-SAAO | P\  |   100 | 16.6 |  Coadd 
     183 |         MASTER-SAAO | P\  |    30 | 14.7 |        
     230 |         MASTER-SAAO | P\  |    40 | 16.4 |        
     288 |         MASTER-SAAO | P\  |    50 | 15.9 |        
     358 |         MASTER-SAAO | P\  |   190 | 16.6 |  Coadd 
     355 |         MASTER-SAAO | P\  |    60 | 15.1 |        
     437 |         MASTER-SAAO | P\  |    80 | 16.4 |        
     541 |         MASTER-SAAO | P\  |   100 | 17.8 |        
     676 |         MASTER-SAAO | P\  |   370 | 18.6 |  Coadd 
     662 |         MASTER-SAAO | P\  |   120 | 17.8 |        
     810 |         MASTER-SAAO | P\  |   150 | 18.1 |        
     871 |   MASTER-Kislovodsk |  P| |   160 | 14.2 |        
     987 |         MASTER-SAAO | P\  |   180 | 17.5 |        
    1167 |         MASTER-SAAO | P\  |   540 | 17.9 |  Coadd 
    1048 |   MASTER-Kislovodsk |  P- |   180 | 12.4 |        
    1048 |   MASTER-Kislovodsk |  P| |   180 | 14.1 |        
    1188 |         MASTER-SAAO | P\  |   180 | 17.4 |        
    1249 |   MASTER-Kislovodsk |  P- |   180 | 12.9 |        
    1429 |   MASTER-Kislovodsk |  P- |   540 | 14.3 |  Coadd 
    1249 |   MASTER-Kislovodsk |  P| |   180 | 14.2 |        
    1387 |         MASTER-SAAO | P\  |   180 | 17.4 |        
    1449 |   MASTER-Kislovodsk |  P- |   180 | 13.4 |        
    1449 |   MASTER-Kislovodsk |  P| |   180 | 14.3 |        
    1629 |   MASTER-Kislovodsk |  P| |   540 | 15.1 |  Coadd 
    1587 |         MASTER-SAAO | P\  |   180 | 17.4 |        
    1767 |         MASTER-SAAO | P\  |   540 | 18.0 |  Coadd 
    1650 |   MASTER-Kislovodsk |  P- |   180 | 13.6 |        
    1786 |         MASTER-SAAO | P\  |   180 | 17.5 |        
    1850 |   MASTER-Kislovodsk |  P- |   180 | 14.0 |        
    2030 |   MASTER-Kislovodsk |  P- |   540 | 14.8 |  Coadd 
    1850 |   MASTER-Kislovodsk |  P| |   180 | 14.4 |        
    1986 |         MASTER-SAAO | P\  |   180 | 17.5 |        
    2051 |   MASTER-Kislovodsk |  P- |   180 | 14.3 |        
    2051 |   MASTER-Kislovodsk |  P| |   180 | 14.5 |        
    2185 |         MASTER-SAAO | P\  |   180 | 17.5 |        
    2365 |         MASTER-SAAO | P\  |   540 | 16.8 |  Coadd 
    2252 |   MASTER-Kislovodsk |  P- |   180 | 14.4 |        
    2252 |   MASTER-Kislovodsk |  P| |   180 | 14.5 |        
    2432 |   MASTER-Kislovodsk |  P| |   540 | 16.4 |  Coadd 
    2385 |         MASTER-SAAO | P\  |   180 | 15.8 |        
    2784 |         MASTER-SAAO | P\  |   180 | 14.8 |        
    2983 |         MASTER-SAAO | P\  |   180 | 17.5 |        
    3163 |         MASTER-SAAO | P\  |   540 | 17.6 |  Coadd 
    3183 |         MASTER-SAAO | P\  |   180 | 16.6 |        
    3382 |         MASTER-SAAO | P\  |   180 | 17.0 |        
    3724 |   MASTER-Kislovodsk |   C |   180 | 16.4 |        
    3724 |   MASTER-Kislovodsk |   C |   180 | 15.9 |        
    3796 |         MASTER-SAAO | P\  |   180 | 15.3 |        
    3995 |         MASTER-SAAO | P\  |   180 | 14.9 |        
    4005 |   MASTER-Kislovodsk |   C |   180 | 16.8 |        
    4005 |   MASTER-Kislovodsk |   C |   180 | 16.0 |        
    4194 |         MASTER-SAAO | P\  |   180 | 15.0 |        
    4374 |         MASTER-SAAO | P\  |   540 | 16.1 |  Coadd 
    4394 |         MASTER-SAAO | P\  |   180 | 14.0 |        
    4793 |         MASTER-SAAO | P\  |   180 | 16.3 |        
    4992 |         MASTER-SAAO | P\  |   180 | 15.0 |        
    5826 |   MASTER-Kislovodsk |   C |   180 | 14.5 |        
    6621 |      MASTER-Tavrida |   C |   180 | 15.5 |        
    6801 |      MASTER-Tavrida |   C |   540 | 18.3 |  Coadd 
    6820 |      MASTER-Tavrida |   C |   180 | 17.4 |        
    7019 |      MASTER-Tavrida |   C |   180 | 18.4 |        
    7218 |      MASTER-Tavrida |   C |   180 | 17.9 |        
    7931 |         MASTER-SAAO |   C |   180 | 18.9 |        
    9751 |         MASTER-SAAO |   C |   180 | 17.1 |        
   10704 |         MASTER-SAAO |   C |   180 | 17.3 |        
   11787 |         MASTER-SAAO |   C |   180 | 15.9 |        
Filter C is a clear (unfiltred) band. 


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



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

  ID = 5069
TYPE = 35
DAYS = 0.1


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 210919A ( A. Tohuvavohu et al., GCN 30846) errorbox 47 sec after trigger time at 2021-09-19 00:29:20 UT, with upper limit up to  18.9 mag. The observations began at zenith distance = 61 deg. The sun  altitude  is -49.0 deg. 

MASTER-Kislovodsk robotic telescope  located in Russia (Lomonosov MSU, Kislovodsk Solar Station of Pulkovo observatory) was pointed to the SWIFT GRB 210919A errorbox  363 sec after notice time and 790 sec after trigger time at 2021-09-19 00:41:44 UT, with upper limit up to  16.8 mag. The observations began at zenith distance = 50 deg. The sun  altitude  is -24.1 deg. 

MASTER-Tavrida robotic telescope  located in Russia (Lomonosov MSU, SAI Crimea astronomical station) was pointed to the SWIFT GRB 210919A errorbox  6103 sec after notice time and 6530 sec after trigger time at 2021-09-19 02:17:24 UT, with upper limit up to  18.4 mag. Observations started at twilight.  The observations began at zenith distance = 44 deg. The sun  altitude  is -13.0 deg. 

The galactic latitude b = -19 deg., longitude l = 201 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1725970

We obtain a following upper limits.  

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

      52 |         MASTER-SAAO | P\  |    10 | 16.1 |        
      67 |         MASTER-SAAO | P\  |    40 | 17.0 |  Coadd 
     397 |         MASTER-SAAO | P\  |   700 | 18.4 |  Coadd 
      77 |         MASTER-SAAO | P\  |    10 | 16.4 |        
     103 |         MASTER-SAAO | P\  |    20 | 16.6 |        
     141 |         MASTER-SAAO | P\  |    30 | 16.0 |        
     176 |         MASTER-SAAO | P\  |   100 | 16.6 |  Coadd 
     183 |         MASTER-SAAO | P\  |    30 | 14.7 |        
     230 |         MASTER-SAAO | P\  |    40 | 16.4 |        
     288 |         MASTER-SAAO | P\  |    50 | 15.9 |        
     358 |         MASTER-SAAO | P\  |   190 | 16.6 |  Coadd 
     355 |         MASTER-SAAO | P\  |    60 | 15.1 |        
     437 |         MASTER-SAAO | P\  |    80 | 16.4 |        
     541 |         MASTER-SAAO | P\  |   100 | 17.8 |        
     676 |         MASTER-SAAO | P\  |   370 | 18.6 |  Coadd 
     662 |         MASTER-SAAO | P\  |   120 | 17.8 |        
     810 |         MASTER-SAAO | P\  |   150 | 18.1 |        
     871 |   MASTER-Kislovodsk |  P| |   160 | 14.2 |        
     987 |         MASTER-SAAO | P\  |   180 | 17.5 |        
    1167 |         MASTER-SAAO | P\  |   540 | 17.9 |  Coadd 
    1048 |   MASTER-Kislovodsk |  P- |   180 | 12.4 |        
    1048 |   MASTER-Kislovodsk |  P| |   180 | 14.1 |        
    1188 |         MASTER-SAAO | P\  |   180 | 17.4 |        
    1249 |   MASTER-Kislovodsk |  P- |   180 | 12.9 |        
    1429 |   MASTER-Kislovodsk |  P- |   540 | 14.3 |  Coadd 
    1249 |   MASTER-Kislovodsk |  P| |   180 | 14.2 |        
    1387 |         MASTER-SAAO | P\  |   180 | 17.4 |        
    1449 |   MASTER-Kislovodsk |  P- |   180 | 13.4 |        
    1449 |   MASTER-Kislovodsk |  P| |   180 | 14.3 |        
    1629 |   MASTER-Kislovodsk |  P| |   540 | 15.1 |  Coadd 
    1587 |         MASTER-SAAO | P\  |   180 | 17.4 |        
    1767 |         MASTER-SAAO | P\  |   540 | 18.0 |  Coadd 
    1650 |   MASTER-Kislovodsk |  P- |   180 | 13.6 |        
    1786 |         MASTER-SAAO | P\  |   180 | 17.5 |        
    1850 |   MASTER-Kislovodsk |  P- |   180 | 14.0 |        
    2030 |   MASTER-Kislovodsk |  P- |   540 | 14.8 |  Coadd 
    1850 |   MASTER-Kislovodsk |  P| |   180 | 14.4 |        
    1986 |         MASTER-SAAO | P\  |   180 | 17.5 |        
    2051 |   MASTER-Kislovodsk |  P- |   180 | 14.3 |        
    2051 |   MASTER-Kislovodsk |  P| |   180 | 14.5 |        
    2185 |         MASTER-SAAO | P\  |   180 | 17.5 |        
    2365 |         MASTER-SAAO | P\  |   540 | 16.8 |  Coadd 
    2252 |   MASTER-Kislovodsk |  P- |   180 | 14.4 |        
    2252 |   MASTER-Kislovodsk |  P| |   180 | 14.5 |        
    2432 |   MASTER-Kislovodsk |  P| |   540 | 16.4 |  Coadd 
    2385 |         MASTER-SAAO | P\  |   180 | 15.8 |        
    2784 |         MASTER-SAAO | P\  |   180 | 14.8 |        
    2983 |         MASTER-SAAO | P\  |   180 | 17.5 |        
    3163 |         MASTER-SAAO | P\  |   540 | 17.6 |  Coadd 
    3183 |         MASTER-SAAO | P\  |   180 | 16.6 |        
    3382 |         MASTER-SAAO | P\  |   180 | 17.0 |        
    3724 |   MASTER-Kislovodsk |   C |   180 | 16.4 |        
    3724 |   MASTER-Kislovodsk |   C |   180 | 15.9 |        
    3796 |         MASTER-SAAO | P\  |   180 | 15.3 |        
    3995 |         MASTER-SAAO | P\  |   180 | 14.9 |        
    4005 |   MASTER-Kislovodsk |   C |   180 | 16.8 |        
    4005 |   MASTER-Kislovodsk |   C |   180 | 16.0 |        
    4194 |         MASTER-SAAO | P\  |   180 | 15.0 |        
    4374 |         MASTER-SAAO | P\  |   540 | 16.1 |  Coadd 
    4394 |         MASTER-SAAO | P\  |   180 | 14.0 |        
    4793 |         MASTER-SAAO | P\  |   180 | 16.3 |        
    4992 |         MASTER-SAAO | P\  |   180 | 15.0 |        
    5826 |   MASTER-Kislovodsk |   C |   180 | 14.5 |        
    6621 |      MASTER-Tavrida |   C |   180 | 15.5 |        
    6801 |      MASTER-Tavrida |   C |   540 | 18.3 |  Coadd 
    6820 |      MASTER-Tavrida |   C |   180 | 17.4 |        
    7019 |      MASTER-Tavrida |   C |   180 | 18.4 |        
    7218 |      MASTER-Tavrida |   C |   180 | 17.9 |        
    7931 |         MASTER-SAAO |   C |   180 | 18.9 |        
Filter C is a clear (unfiltred) band. 


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



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

  ID = 5068
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 210919A ( A. Tohuvavohu et al., GCN 30846) errorbox 47 sec after trigger time at 2021-09-19 00:29:20 UT, with upper limit up to  18.6 mag. The observations began at zenith distance = 61 deg. The sun  altitude  is -49.0 deg. 

MASTER-Kislovodsk robotic telescope  located in Russia (Lomonosov MSU, Kislovodsk Solar Station of Pulkovo observatory) was pointed to the SWIFT GRB 210919A errorbox  363 sec after notice time and 790 sec after trigger time at 2021-09-19 00:41:44 UT, with upper limit up to  14.3 mag. The observations began at zenith distance = 50 deg. The sun  altitude  is -24.1 deg. 

The galactic latitude b = -19 deg., longitude l = 201 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1725958

We obtain a following upper limits.  

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

      52 |         MASTER-SAAO | P\  |    10 | 16.1 |        
      67 |         MASTER-SAAO | P\  |    40 | 17.0 |  Coadd 
     397 |         MASTER-SAAO | P\  |   700 | 18.4 |  Coadd 
      77 |         MASTER-SAAO | P\  |    10 | 16.4 |        
     103 |         MASTER-SAAO | P\  |    20 | 16.6 |        
     141 |         MASTER-SAAO | P\  |    30 | 16.0 |        
     176 |         MASTER-SAAO | P\  |   100 | 16.6 |  Coadd 
     183 |         MASTER-SAAO | P\  |    30 | 14.7 |        
     230 |         MASTER-SAAO | P\  |    40 | 16.4 |        
     288 |         MASTER-SAAO | P\  |    50 | 15.9 |        
     358 |         MASTER-SAAO | P\  |   190 | 16.6 |  Coadd 
     355 |         MASTER-SAAO | P\  |    60 | 15.1 |        
     437 |         MASTER-SAAO | P\  |    80 | 16.4 |        
     541 |         MASTER-SAAO | P\  |   100 | 17.8 |        
     676 |         MASTER-SAAO | P\  |   370 | 18.6 |  Coadd 
     662 |         MASTER-SAAO | P\  |   120 | 17.8 |        
     810 |         MASTER-SAAO | P\  |   150 | 18.1 |        
     871 |   MASTER-Kislovodsk |  P| |   160 | 14.2 |        
     987 |         MASTER-SAAO | P\  |   180 | 17.5 |        
    1167 |         MASTER-SAAO | P\  |   540 | 17.9 |  Coadd 
    1048 |   MASTER-Kislovodsk |  P- |   180 | 12.4 |        
    1048 |   MASTER-Kislovodsk |  P| |   180 | 14.1 |        
    1188 |         MASTER-SAAO | P\  |   180 | 17.4 |        
    1249 |   MASTER-Kislovodsk |  P- |   180 | 12.9 |        
    1249 |   MASTER-Kislovodsk |  P| |   180 | 14.2 |        
    1387 |         MASTER-SAAO | P\  |   180 | 17.4 |        
    1449 |   MASTER-Kislovodsk |  P- |   180 | 13.4 |        
    1449 |   MASTER-Kislovodsk |  P| |   180 | 14.3 |        
    1587 |         MASTER-SAAO | P\  |   180 | 17.4 |        
    1650 |   MASTER-Kislovodsk |  P- |   180 | 13.6 |        


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



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

  ID = 5067
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 210919A ( A. Tohuvavohu et al., GCN 30846) errorbox 47 sec after trigger time at 2021-09-19 00:29:20 UT, with upper limit up to  18.6 mag. The observations began at zenith distance = 61 deg. The sun  altitude  is -49.0 deg. 

MASTER-Kislovodsk robotic telescope  located in Russia (Lomonosov MSU, Kislovodsk Solar Station of Pulkovo observatory) was pointed to the SWIFT GRB 210919A errorbox  363 sec after notice time and 790 sec after trigger time at 2021-09-19 00:41:44 UT, with upper limit up to  14.3 mag. The observations began at zenith distance = 50 deg. The sun  altitude  is -24.1 deg. 

The galactic latitude b = -19 deg., longitude l = 201 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1725958

We obtain a following upper limits.  

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

      52 |         MASTER-SAAO | P\  |    10 | 16.1 |        
      67 |         MASTER-SAAO | P\  |    40 | 17.0 |  Coadd 
     397 |         MASTER-SAAO | P\  |   700 | 18.4 |  Coadd 
      77 |         MASTER-SAAO | P\  |    10 | 16.4 |        
     103 |         MASTER-SAAO | P\  |    20 | 16.6 |        
     141 |         MASTER-SAAO | P\  |    30 | 16.0 |        
     176 |         MASTER-SAAO | P\  |   100 | 16.6 |  Coadd 
     183 |         MASTER-SAAO | P\  |    30 | 14.7 |        
     230 |         MASTER-SAAO | P\  |    40 | 16.4 |        
     288 |         MASTER-SAAO | P\  |    50 | 15.9 |        
     358 |         MASTER-SAAO | P\  |   190 | 16.6 |  Coadd 
     355 |         MASTER-SAAO | P\  |    60 | 15.1 |        
     437 |         MASTER-SAAO | P\  |    80 | 16.4 |        
     541 |         MASTER-SAAO | P\  |   100 | 17.8 |        
     676 |         MASTER-SAAO | P\  |   370 | 18.6 |  Coadd 
     662 |         MASTER-SAAO | P\  |   120 | 17.8 |        
     810 |         MASTER-SAAO | P\  |   150 | 18.1 |        
     871 |   MASTER-Kislovodsk |  P| |   160 | 14.2 |        
     987 |         MASTER-SAAO | P\  |   180 | 17.5 |        
    1167 |         MASTER-SAAO | P\  |   540 | 17.9 |  Coadd 
    1048 |   MASTER-Kislovodsk |  P- |   180 | 12.4 |        
    1048 |   MASTER-Kislovodsk |  P| |   180 | 14.1 |        
    1188 |         MASTER-SAAO | P\  |   180 | 17.4 |        
    1249 |   MASTER-Kislovodsk |  P- |   180 | 12.9 |        
    1249 |   MASTER-Kislovodsk |  P| |   180 | 14.2 |        
    1387 |         MASTER-SAAO | P\  |   180 | 17.4 |        
    1449 |   MASTER-Kislovodsk |  P- |   180 | 13.4 |        
    1449 |   MASTER-Kislovodsk |  P| |   180 | 14.3 |        
    1587 |         MASTER-SAAO | P\  |   180 | 17.4 |        
    1650 |   MASTER-Kislovodsk |  P- |   180 | 13.6 |        


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



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

  ID = 5066
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 210919A ( A. Tohuvavohu et al., GCN 30846) errorbox 47 sec after trigger time at 2021-09-19 00:29:20 UT, with upper limit up to  18.6 mag. The observations began at zenith distance = 61 deg. The sun  altitude  is -49.0 deg. 

MASTER-Kislovodsk robotic telescope  located in Russia (Lomonosov MSU, Kislovodsk Solar Station of Pulkovo observatory) was pointed to the SWIFT GRB 210919A errorbox  363 sec after notice time and 790 sec after trigger time at 2021-09-19 00:41:44 UT, with upper limit up to  14.3 mag. The observations began at zenith distance = 50 deg. The sun  altitude  is -24.1 deg. 

The galactic latitude b = -19 deg., longitude l = 201 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1725958

We obtain a following upper limits.  

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

      52 |         MASTER-SAAO | P\  |    10 | 16.1 |        
      67 |         MASTER-SAAO | P\  |    40 | 17.0 |  Coadd 
     397 |         MASTER-SAAO | P\  |   700 | 18.4 |  Coadd 
      77 |         MASTER-SAAO | P\  |    10 | 16.4 |        
     103 |         MASTER-SAAO | P\  |    20 | 16.6 |        
     141 |         MASTER-SAAO | P\  |    30 | 16.0 |        
     176 |         MASTER-SAAO | P\  |   100 | 16.6 |  Coadd 
     183 |         MASTER-SAAO | P\  |    30 | 14.7 |        
     230 |         MASTER-SAAO | P\  |    40 | 16.4 |        
     288 |         MASTER-SAAO | P\  |    50 | 15.9 |        
     358 |         MASTER-SAAO | P\  |   190 | 16.6 |  Coadd 
     355 |         MASTER-SAAO | P\  |    60 | 15.1 |        
     437 |         MASTER-SAAO | P\  |    80 | 16.4 |        
     541 |         MASTER-SAAO | P\  |   100 | 17.8 |        
     676 |         MASTER-SAAO | P\  |   370 | 18.6 |  Coadd 
     662 |         MASTER-SAAO | P\  |   120 | 17.8 |        
     810 |         MASTER-SAAO | P\  |   150 | 18.1 |        
     871 |   MASTER-Kislovodsk |  P| |   160 | 14.2 |        
     987 |         MASTER-SAAO | P\  |   180 | 17.5 |        
    1167 |         MASTER-SAAO | P\  |   540 | 17.9 |  Coadd 
    1048 |   MASTER-Kislovodsk |  P- |   180 | 12.4 |        
    1048 |   MASTER-Kislovodsk |  P| |   180 | 14.1 |        
    1188 |         MASTER-SAAO | P\  |   180 | 17.4 |        
    1249 |   MASTER-Kislovodsk |  P- |   180 | 12.9 |        
    1249 |   MASTER-Kislovodsk |  P| |   180 | 14.2 |        
    1387 |         MASTER-SAAO | P\  |   180 | 17.4 |        
    1449 |   MASTER-Kislovodsk |  P- |   180 | 13.4 |        
    1449 |   MASTER-Kislovodsk |  P| |   180 | 14.3 |        
    1587 |         MASTER-SAAO | P\  |   180 | 17.4 |        
    1650 |   MASTER-Kislovodsk |  P- |   180 | 13.6 |        


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

MASTER, 2002-2025