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GCN Circular 32378

Subject
Fermi GRB 220711B: Global MASTER-Net observations report
Date
2022-07-13T00:30:23Z (2 years ago)
From
Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>
V. Lipunov, V.Kornilov, E.Gorbovskoy, K.Zhirkov, N.Tyurina, P.Balanutsa, A.Kuznetsov, D. Vlasenko, 
G.Antipov, D.Zimnukhov, V.Senik, E.Minkina, A.Chasovnikov, V.Topolev, D.Kuvshinov,  D.Cheryasov, Ya.Kechin
(Lomonosov Moscow State University, SAI, Physics Department),

R. Podesta, C.Lopez, F. Podesta, C.Francile 
(Observatorio Astronomico Felix Aguilar OAFA),

R. Rebolo, M. Serra 
(The Instituto de Astrofisica de Canarias),

D. Buckley 
(South African Astronomical Observatory),

O.A. Gres, N.M. Budnev
(Irkutsk State University, API),

L.Carrasco, J.R.Valdes, V.Chavushyan, V.M.Patino Alvarez, J.Martinez, A.R.Corella, L.H.Rodriguez 
(INAOE, Guillermo Haro Astrophysics Observatory),

A. Tlatov, D. Dormidontov 
(Kislovodsk Solar Station of the Pulkovo Observatory),

A. Gabovich, V.Yurkov 
(Blagoveschensk Educational State University)


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) started inspect of the Fermi GRB 220711B ( Fermi GBM team, GCN 32365) errorbox  1 days 20192 sec after notice time and 1 days 20226 sec after trigger time at 2022-07-12 23:53:34 UT, with upper limit up to  17.0 mag. The observations began at zenith distance = 75 deg. The sun  altitude  is -71.6 deg. 

The galactic latitude b = 25 deg., longitude l = 57 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2028449

We obtain a following upper limits.  

Tmid-T0  |      Date Time      |          Site       |             Coord (J2000)          |Filt.| Expt. | Limit| Comment
_________|_____________________|_____________________|____________________________________|_____|_______|_______|________

    9098 | 2022-07-11 20:47:36 |             MASTER- | (17h 52m 34.45s , +31d 27m 32.4s) |   C |    60 | 18.1 |        
    9173 | 2022-07-11 20:48:51 |             MASTER- | (18h 02m 05.30s , +31d 27m 48.8s) |   C |    60 | 18.0 |        
    9320 | 2022-07-11 20:51:18 |             MASTER- | (17h 58m 24.11s , +29d 35m 23.4s) |   C |    60 | 18.0 |        
    9395 | 2022-07-11 20:52:32 |             MASTER- | (17h 57m 18.45s , +33d 21m 21.6s) |   C |    60 | 18.3 |        
    9529 | 2022-07-11 20:54:47 |             MASTER- | (18h 06m 54.95s , +33d 23m 15.9s) |   C |    60 | 18.1 |        
    9603 | 2022-07-11 20:56:01 |             MASTER- | (18h 06m 41.33s , +29d 33m 13.2s) |   C |    60 | 17.9 |        
    9960 | 2022-07-11 21:01:58 |             MASTER- | (18h 15m 59.80s , +29d 34m 09.9s) |   C |    60 | 18.0 |        
   10371 | 2022-07-11 21:08:49 |             MASTER- | (17h 52m 33.12s , +31d 28m 51.2s) |   C |    60 | 18.1 |        
   10445 | 2022-07-11 21:10:03 |             MASTER- | (18h 02m 02.64s , +31d 27m 49.2s) |   C |    60 | 17.5 |        
   87628 | 2022-07-12 18:36:25 |             MASTER- | (17h 44m 54.03s , +35d 17m 39.5s) |   C |    60 | 17.1 |        
   87703 | 2022-07-12 18:37:40 |             MASTER- | (17h 54m 49.30s , +35d 17m 32.4s) |   C |    60 | 17.6 |        
   87835 | 2022-07-12 18:39:53 |             MASTER- | (17h 34m 51.34s , +31d 31m 06.4s) |   C |    60 | 17.6 |        
   87909 | 2022-07-12 18:41:06 |             MASTER- | (17h 44m 09.20s , +31d 29m 54.8s) |   C |    60 | 17.6 |        
   88045 | 2022-07-12 18:43:22 |             MASTER- | (17h 39m 13.60s , +33d 24m 50.7s) |   C |    60 | 17.8 |        
   88119 | 2022-07-12 18:44:36 |             MASTER- | (17h 48m 43.86s , +33d 23m 37.4s) |   C |    60 | 17.9 |        
   88258 | 2022-07-12 18:46:56 |             MASTER- | (18h 04m 17.54s , +27d 42m 49.8s) |   C |    60 | 17.6 |        
   88332 | 2022-07-12 18:48:10 |             MASTER- | (18h 13m 13.60s , +27d 41m 39.0s) |   C |    60 | 15.8 |        
   88469 | 2022-07-12 18:50:27 |             MASTER- | (18h 03m 39.99s , +35d 18m 02.0s) |   C |    60 | 18.1 |        
   88544 | 2022-07-12 18:51:41 |             MASTER- | (18h 13m 29.75s , +35d 16m 52.5s) |   C |    60 | 17.8 |        
   88680 | 2022-07-12 18:53:58 |             MASTER- | (17h 44m 55.34s , +35d 19m 28.8s) |   C |    60 | 17.9 |        
   88755 | 2022-07-12 18:55:13 |             MASTER- | (17h 54m 50.22s , +35d 18m 15.6s) |   C |    60 | 18.2 |        
   88893 | 2022-07-12 18:57:31 |             MASTER- | (17h 34m 46.75s , +31d 31m 50.7s) |   C |    60 | 18.0 |        
   88967 | 2022-07-12 18:58:45 |             MASTER- | (17h 44m 15.51s , +31d 30m 40.0s) |   C |    60 | 18.0 |        
   89105 | 2022-07-12 19:01:02 |             MASTER- | (17h 39m 08.40s , +33d 25m 37.7s) |   C |    60 | 18.0 |        
   89179 | 2022-07-12 19:02:17 |             MASTER- | (17h 48m 51.01s , +33d 24m 26.3s) |   C |    60 | 18.2 |        
   89255 | 2022-07-12 19:03:32 |             MASTER- | (18h 04m 14.10s , +27d 41m 34.0s) |   C |    60 | 17.8 |        
   89388 | 2022-07-12 19:05:45 |             MASTER- | (18h 13m 15.43s , +27d 43m 22.9s) |   C |    60 | 17.9 |        
   89464 | 2022-07-12 19:07:02 |             MASTER- | (18h 03m 39.10s , +35d 17m 57.1s) |   C |    60 | 18.3 |        
   89602 | 2022-07-12 19:09:20 |             MASTER- | (18h 13m 29.70s , +35d 17m 42.4s) |   C |    60 | 18.1 |        
   89678 | 2022-07-12 19:10:35 |             MASTER- | (17h 44m 54.93s , +35d 17m 19.4s) |   C |    60 | 18.2 |        
   89813 | 2022-07-12 19:12:51 |             MASTER- | (17h 54m 44.11s , +35d 19m 07.0s) |   C |    60 | 18.3 |        
   89888 | 2022-07-12 19:14:06 |             MASTER- | (17h 34m 50.97s , +31d 30m 35.0s) |   C |    60 | 18.1 |        
   90076 | 2022-07-12 19:17:14 |             MASTER- | (17h 44m 10.26s , +31d 31m 24.1s) |   C |    60 | 18.2 |        
   90150 | 2022-07-12 19:18:28 |             MASTER- | (17h 39m 13.33s , +33d 24m 23.1s) |   C |    60 | 18.1 |        
   90288 | 2022-07-12 19:20:46 |             MASTER- | (17h 48m 44.63s , +33d 25m 12.3s) |   C |    60 | 18.2 |        
   90364 | 2022-07-12 19:22:02 |             MASTER- | (18h 04m 20.94s , +27d 42m 14.5s) |   C |    60 | 17.8 |        
   90523 | 2022-07-12 19:24:41 |             MASTER- | (18h 13m 17.06s , +27d 43m 04.0s) |   C |    60 | 17.9 |        
   90600 | 2022-07-12 19:25:57 |             MASTER- | (18h 03m 38.78s , +35d 17m 46.6s) |   C |    60 | 18.3 |        
   90785 | 2022-07-12 19:29:02 |             MASTER- | (18h 13m 21.62s , +35d 18m 32.9s) |   C |    60 | 17.9 |        
   90860 | 2022-07-12 19:30:18 |             MASTER- | (18h 10m 27.72s , +31d 28m 46.9s) |   C |    60 | 18.0 |        
   91048 | 2022-07-12 19:33:26 |             MASTER- | (18h 19m 51.93s , +31d 30m 34.1s) |   C |    60 | 18.1 |        
   91123 | 2022-07-12 19:34:41 |             MASTER- | (18h 15m 36.84s , +33d 22m 32.1s) |   C |    60 | 12.4 |        
   91337 | 2022-07-12 19:38:14 |             MASTER- | (17h 31m 41.85s , +29d 35m 08.8s) |   C |    60 | 18.1 |        
   91524 | 2022-07-12 19:41:21 |             MASTER- | (17h 40m 55.44s , +29d 36m 59.9s) |   C |    60 | 18.1 |        
   91598 | 2022-07-12 19:42:36 |             MASTER- | (17h 47m 05.69s , +27d 40m 57.4s) |   C |    60 | 18.0 |        
   91785 | 2022-07-12 19:45:43 |             MASTER- | (17h 56m 07.99s , +27d 42m 48.1s) |   C |    60 | 17.9 |        
   91860 | 2022-07-12 19:46:58 |             MASTER- | (18h 10m 33.38s , +31d 29m 29.1s) |   C |    60 | 17.9 |        
   92048 | 2022-07-12 19:50:05 |             MASTER- | (18h 19m 51.50s , +31d 30m 18.0s) |   C |    60 | 18.0 |        
   92122 | 2022-07-12 19:51:20 |             MASTER- | (18h 15m 41.53s , +33d 23m 16.4s) |   C |    60 | 18.0 |        
   92335 | 2022-07-12 19:54:53 |             MASTER- | (17h 31m 48.72s , +29d 35m 45.3s) |   C |    60 | 18.0 |        
   92521 | 2022-07-12 19:57:58 |             MASTER- | (17h 40m 53.67s , +29d 36m 37.9s) |   C |    60 | 18.0 |        
   92595 | 2022-07-12 19:59:13 |             MASTER- | (17h 47m 11.12s , +27d 41m 34.8s) |   C |    60 | 17.8 |        
   92782 | 2022-07-12 20:02:20 |             MASTER- | (17h 56m 07.69s , +27d 42m 26.6s) |   C |    60 | 17.8 |        
   92856 | 2022-07-12 20:03:34 |             MASTER- | (18h 10m 33.09s , +31d 29m 13.3s) |   C |    60 | 17.0 |        
  106657 | 2022-07-12 23:53:34 |         MASTER-SAAO | (17h 45m 25.60s , +31d 37m 42.4s) |   C |    60 | 16.7 |        
  106737 | 2022-07-12 23:54:54 |         MASTER-SAAO | (17h 54m 53.08s , +31d 37m 30.4s) |   C |    60 | 16.8 |        
  106827 | 2022-07-12 23:56:24 |         MASTER-SAAO | (17h 42m 12.38s , +29d 44m 25.4s) |   C |    60 | 16.8 |        
  106906 | 2022-07-12 23:57:44 |         MASTER-SAAO | (17h 51m 25.02s , +29d 45m 10.9s) |   C |    60 | 16.9 |        
  106997 | 2022-07-12 23:59:15 |         MASTER-SAAO | (17h 50m 05.59s , +33d 33m 46.5s) |   C |    60 | 16.6 |        
  107087 | 2022-07-13 00:00:45 |         MASTER-SAAO | (17h 59m 44.94s , +33d 32m 11.4s) |   C |    60 | 16.8 |        
  107170 | 2022-07-13 00:02:07 |         MASTER-SAAO | (17h 59m 41.66s , +29d 43m 34.7s) |   C |    60 | 17.0 |        
  107260 | 2022-07-13 00:03:38 |         MASTER-SAAO | (18h 08m 50.39s , +29d 44m 05.3s) |   C |    60 | 17.0 |        
  107340 | 2022-07-13 00:04:57 |         MASTER-SAAO | (17h 57m 22.60s , +27d 51m 15.7s) |   C |    60 | 16.9 |        
  107432 | 2022-07-13 00:06:30 |         MASTER-SAAO | (18h 06m 18.27s , +27d 49m 45.4s) |   C |    60 | 17.0 |        
  107512 | 2022-07-13 00:07:50 |         MASTER-SAAO | (17h 27m 56.18s , +31d 40m 35.1s) |   C |    60 | 14.9 |        
  107814 | 2022-07-13 00:12:52 |         MASTER-SAAO | (17h 37m 16.91s , +31d 39m 31.8s) |   C |    60 | 15.8 |        
  107905 | 2022-07-13 00:14:23 |         MASTER-SAAO | (17h 45m 37.78s , +31d 40m 12.6s) |   C |    60 | 16.1 |        
  107996 | 2022-07-13 00:15:53 |         MASTER-SAAO | (17h 54m 57.41s , +31d 38m 25.7s) |   C |    60 | 16.3 |        
  108075 | 2022-07-13 00:17:13 |         MASTER-SAAO | (17h 42m 25.20s , +29d 46m 22.8s) |   C |    60 | 16.1 |        
  108166 | 2022-07-13 00:18:44 |         MASTER-SAAO | (17h 51m 26.66s , +29d 45m 13.2s) |   C |    60 | 16.3 |        
  108246 | 2022-07-13 00:20:03 |         MASTER-SAAO | (17h 59m 51.64s , +33d 32m 54.3s) |   C |    60 | 16.3 |        
  108336 | 2022-07-13 00:21:34 |         MASTER-SAAO | (17h 59m 42.45s , +29d 43m 45.6s) |   C |    60 | 16.4 |        
  108416 | 2022-07-13 00:22:54 |         MASTER-SAAO | (18h 08m 57.21s , +29d 43m 34.7s) |   C |    60 | 16.5 |        
  108507 | 2022-07-13 00:24:24 |         MASTER-SAAO | (17h 57m 25.77s , +27d 51m 33.7s) |   C |    60 | 16.4 |        
  108586 | 2022-07-13 00:25:44 |         MASTER-SAAO | (18h 06m 25.29s , +27d 49m 33.4s) |   C |    60 | 16.6 |        
Filter C is a clear (unfiltred) band. 


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