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GCN Circular 33257

Subject
Fermi trigger No 697098930: Global MASTER-Net observations report
Date
2023-02-03T16:30:21Z (10 months 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-Amur robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Russia (Blagoveshchensk State Pedagogical University) started inspect of the Fermi GRB230203.27 (trigger No 697098930,07h 01m 36.00s , +73d 55m 12.0s, R=20.4) errorbox  18866 sec after notice time and 18902 sec after trigger time at 2023-02-03 11:50:27 UT, with upper limit up to  17.2 mag. The observations began at zenith distance =  4 deg. The sun  altitude  is -32.7 deg. 

The galactic latitude b = 27 deg., longitude l = 141 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2196464

We obtain a following upper limits.  

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

   18932 | 2023-02-03 11:50:27 |         MASTER-Amur | (05h 17m 12.21s , +54d 17m 32.5s) |   C |    60 | 16.8 |        
   19975 | 2023-02-03 12:07:50 |         MASTER-Amur | (05h 21m 59.95s , +54d 23m 53.7s) |   C |    60 | 16.9 |        
   21097 | 2023-02-03 12:26:32 |         MASTER-Amur | (05h 20m 07.74s , +54d 23m 24.1s) |   C |    60 | 16.9 |        
   21177 | 2023-02-03 12:27:52 |         MASTER-Amur | (05h 33m 48.28s , +54d 25m 05.2s) |   C |    60 | 16.9 |        
   21576 | 2023-02-03 12:34:30 |         MASTER-Amur | (05h 35m 12.63s , +56d 17m 10.2s) |   C |    60 | 15.2 |        
   21855 | 2023-02-03 12:39:10 |         MASTER-Amur | (05h 49m 41.04s , +56d 18m 32.9s) |   C |    60 | 14.9 |        
   22254 | 2023-02-03 12:45:49 |         MASTER-Amur | (05h 52m 25.91s , +58d 12m 54.9s) |   C |    60 | 15.0 |        
   22334 | 2023-02-03 12:47:08 |         MASTER-Amur | (06h 07m 38.53s , +58d 11m 00.2s) |   C |    60 | 14.8 |        
   22573 | 2023-02-03 12:51:08 |         MASTER-Amur | (05h 35m 13.11s , +56d 19m 26.3s) |   C |    60 | 15.3 |        
   22653 | 2023-02-03 12:52:28 |         MASTER-Amur | (05h 07m 51.52s , +56d 17m 32.5s) |   C |    60 | 15.2 |        
   22732 | 2023-02-03 12:53:47 |         MASTER-Amur | (05h 22m 22.80s , +56d 17m 44.4s) |   C |    60 | 15.1 |        
   23672 | 2023-02-03 13:09:26 |         MASTER-Amur | (05h 49m 42.14s , +56d 19m 16.8s) |   C |    60 | 16.9 |        
   24069 | 2023-02-03 13:16:04 |         MASTER-Amur | (05h 52m 30.64s , +58d 12m 21.0s) |   C |    60 | 17.0 |        
   24149 | 2023-02-03 13:17:24 |         MASTER-Amur | (06h 07m 33.72s , +58d 11m 15.0s) |   C |    60 | 16.9 |        
   24229 | 2023-02-03 13:18:44 |         MASTER-Amur | (05h 35m 22.16s , +56d 18m 06.0s) |   C |    60 | 16.9 |        
   24308 | 2023-02-03 13:20:03 |         MASTER-Amur | (05h 07m 56.78s , +56d 19m 35.0s) |   C |    60 | 17.0 |        
   24388 | 2023-02-03 13:21:23 |         MASTER-Amur | (05h 22m 20.86s , +56d 17m 50.8s) |   C |    60 | 17.0 |        
   24628 | 2023-02-03 13:25:23 |         MASTER-Amur | (05h 49m 47.59s , +56d 18m 28.1s) |   C |    60 | 16.8 |        
   25027 | 2023-02-03 13:32:02 |         MASTER-Amur | (05h 52m 31.69s , +58d 13m 19.9s) |   C |    60 | 17.0 |        
   25106 | 2023-02-03 13:33:21 |         MASTER-Amur | (06h 07m 36.52s , +58d 12m 19.6s) |   C |    60 | 16.9 |        
   25345 | 2023-02-03 13:37:20 |         MASTER-Amur | (05h 08m 03.03s , +56d 18m 27.4s) |   C |    60 | 17.0 |        
   25424 | 2023-02-03 13:38:39 |         MASTER-Amur | (05h 22m 23.15s , +56d 19m 31.2s) |   C |    60 | 16.9 |        
   26022 | 2023-02-03 13:48:37 |         MASTER-Amur | (05h 23m 43.78s , +58d 13m 44.5s) |   C |    60 | 17.0 |        
   26102 | 2023-02-03 13:49:56 |         MASTER-Amur | (05h 38m 48.78s , +58d 12m 51.2s) |   C |    60 | 17.0 |        
   27000 | 2023-02-03 14:04:54 |         MASTER-Amur | (05h 23m 45.70s , +58d 12m 27.4s) |   C |    60 | 17.1 |        
   27079 | 2023-02-03 14:06:14 |         MASTER-Amur | (05h 38m 53.44s , +58d 13m 35.4s) |   C |    60 | 17.1 |        
   27963 | 2023-02-03 14:20:58 |         MASTER-Amur | (05h 23m 41.05s , +58d 14m 29.0s) |   C |    60 | 17.1 |        
   28043 | 2023-02-03 14:22:17 |         MASTER-Amur | (05h 38m 56.22s , +58d 13m 15.7s) |   C |    60 | 17.1 |        
   28761 | 2023-02-03 14:34:15 |         MASTER-Amur | (05h 41m 35.02s , +60d 06m 30.5s) |   C |    60 | 17.2 |        
   28841 | 2023-02-03 14:35:35 |         MASTER-Amur | (05h 57m 39.50s , +60d 08m 03.2s) |   C |    60 | 17.1 |        
   28920 | 2023-02-03 14:36:55 |         MASTER-Amur | (06h 12m 01.06s , +60d 07m 57.9s) |   C |    60 | 17.1 |        
   29000 | 2023-02-03 14:38:14 |         MASTER-Amur | (06h 28m 08.71s , +60d 06m 44.8s) |   C |    60 | 17.0 |        
   29717 | 2023-02-03 14:50:12 |         MASTER-Amur | (05h 41m 39.49s , +60d 06m 57.2s) |   C |    60 | 17.2 |        
   29796 | 2023-02-03 14:51:31 |         MASTER-Amur | (05h 57m 38.52s , +60d 07m 56.6s) |   C |    60 | 17.1 |        
   29876 | 2023-02-03 14:52:51 |         MASTER-Amur | (06h 12m 03.54s , +60d 06m 11.6s) |   C |    60 | 17.0 |        
   29956 | 2023-02-03 14:54:10 |         MASTER-Amur | (06h 28m 10.20s , +60d 07m 45.2s) |   C |    60 | 17.0 |        
   30673 | 2023-02-03 15:06:07 |         MASTER-Amur | (05h 41m 33.82s , +60d 08m 51.3s) |   C |    60 | 17.2 |        
   30752 | 2023-02-03 15:07:27 |         MASTER-Amur | (05h 57m 41.76s , +60d 07m 36.3s) |   C |    60 | 17.1 |        
   30832 | 2023-02-03 15:08:46 |         MASTER-Amur | (06h 12m 01.82s , +60d 06m 23.6s) |   C |    60 | 17.1 |        
   30911 | 2023-02-03 15:10:06 |         MASTER-Amur | (06h 28m 09.88s , +60d 06m 22.9s) |   C |    60 | 17.1 |        
   31469 | 2023-02-03 15:19:24 |         MASTER-Amur | (04h 40m 43.12s , +56d 21m 58.9s) |   C |    60 | 16.9 |        
   31549 | 2023-02-03 15:20:43 |         MASTER-Amur | (04h 55m 07.72s , +56d 20m 32.3s) |   C |    60 | 17.0 |        
   31629 | 2023-02-03 15:22:04 |         MASTER-Amur | (04h 54m 55.28s , +58d 15m 04.8s) |   C |    60 | 17.1 |        
   31708 | 2023-02-03 15:23:23 |         MASTER-Amur | (05h 10m 05.93s , +58d 15m 47.6s) |   C |    60 | 17.1 |        
   31788 | 2023-02-03 15:24:43 |         MASTER-Amur | (05h 11m 07.41s , +60d 07m 48.3s) |   C |    60 | 17.1 |        
   31868 | 2023-02-03 15:26:03 |         MASTER-Amur | (05h 27m 17.84s , +60d 07m 31.8s) |   C |    60 | 17.0 |        
   32427 | 2023-02-03 15:35:21 |         MASTER-Amur | (04h 40m 45.81s , +56d 20m 40.7s) |   C |    60 | 17.0 |        
   32506 | 2023-02-03 15:36:41 |         MASTER-Amur | (04h 55m 08.60s , +56d 22m 17.6s) |   C |    60 | 16.9 |        
   32586 | 2023-02-03 15:38:00 |         MASTER-Amur | (04h 55m 00.15s , +58d 14m 30.3s) |   C |    60 | 17.1 |        
   32665 | 2023-02-03 15:39:20 |         MASTER-Amur | (05h 10m 13.98s , +58d 16m 04.6s) |   C |    60 | 17.0 |        
   32745 | 2023-02-03 15:40:40 |         MASTER-Amur | (05h 11m 09.71s , +60d 09m 07.8s) |   C |    60 | 17.1 |        
   32825 | 2023-02-03 15:41:59 |         MASTER-Amur | (05h 27m 13.18s , +60d 09m 49.6s) |   C |    60 | 17.1 |        
   33243 | 2023-02-03 15:48:57 |         MASTER-Amur | (07h 00m 11.46s , +63d 55m 44.3s) |   C |    60 | 17.0 |        
   33322 | 2023-02-03 15:50:17 |         MASTER-Amur | (07h 18m 16.73s , +63d 54m 49.9s) |   C |    60 | 17.0 |        
   33402 | 2023-02-03 15:51:37 |         MASTER-Amur | (04h 40m 42.12s , +56d 23m 04.1s) |   C |    60 | 17.0 |        
   33481 | 2023-02-03 15:52:56 |         MASTER-Amur | (04h 55m 11.72s , +56d 21m 46.8s) |   C |    60 | 17.0 |        
   33561 | 2023-02-03 15:54:16 |         MASTER-Amur | (04h 54m 57.39s , +58d 14m 47.0s) |   C |    60 | 17.2 |        
   33641 | 2023-02-03 15:55:35 |         MASTER-Amur | (05h 10m 14.07s , +58d 14m 53.6s) |   C |    60 | 17.1 |        
   33720 | 2023-02-03 15:56:55 |         MASTER-Amur | (05h 11m 13.12s , +60d 10m 14.6s) |   C |    60 | 17.1 |        
   33800 | 2023-02-03 15:58:15 |         MASTER-Amur | (05h 27m 15.54s , +60d 08m 34.3s) |   C |    60 | 17.1 |        
   33880 | 2023-02-03 15:59:34 |         MASTER-Amur | (05h 51m 05.58s , +63d 56m 41.1s) |   C |    60 | 17.1 |        
   33960 | 2023-02-03 16:00:54 |         MASTER-Amur | (06h 09m 15.36s , +63d 57m 20.9s) |   C |    60 | 17.1 |        
   34206 | 2023-02-03 16:05:00 |         MASTER-Amur | (07h 00m 13.76s , +63d 54m 38.7s) |   C |    60 | 17.0 |        
   34285 | 2023-02-03 16:06:20 |         MASTER-Amur | (07h 18m 19.63s , +63d 55m 37.9s) |   C |    60 | 17.0 |        
   34365 | 2023-02-03 16:07:40 |         MASTER-Amur | (06h 02m 10.00s , +62d 03m 29.8s) |   C |    60 | 16.2 |        
   34445 | 2023-02-03 16:09:00 |         MASTER-Amur | (06h 19m 03.77s , +62d 02m 23.7s) |   C |    60 | 15.2 |        
   34525 | 2023-02-03 16:10:19 |         MASTER-Amur | (05h 48m 29.95s , +59d 50m 40.6s) |   R |    60 | 14.7 |        
   34604 | 2023-02-03 16:11:39 |         MASTER-Amur | (05h 48m 36.90s , +59d 49m 42.3s) |   R |    60 | 14.5 |        
   34684 | 2023-02-03 16:12:58 |         MASTER-Amur | (05h 48m 30.79s , +59d 48m 43.4s) |   R |    60 | 14.5 |        
   34764 | 2023-02-03 16:14:18 |         MASTER-Amur | (05h 48m 36.01s , +59d 48m 58.5s) |   R |    60 | 14.7 |        
   34844 | 2023-02-03 16:15:38 |         MASTER-Amur | (05h 48m 33.14s , +59d 50m 32.1s) |   R |    60 | 14.5 |        
   34924 | 2023-02-03 16:16:58 |         MASTER-Amur | (05h 48m 33.04s , +59d 49m 02.3s) |   R |    60 | 14.5 |        
   35063 | 2023-02-03 16:18:18 |         MASTER-Amur | (05h 48m 36.52s , +59d 50m 36.2s) |   R |   180 | 14.9 |        
   35263 | 2023-02-03 16:21:38 |         MASTER-Amur | (05h 48m 30.95s , +59d 49m 50.6s) |   R |   180 | 16.4 |        
Filter C is a clear (unfiltred) band. 


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