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GCN Circular 31302

Subject
Fermi trigger No 662084433: Global MASTER-Net observations report
Date
2021-12-25T01:30:19Z (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, T.Pogrosheva, E.Minkina,
A.Chasovnikov, V.Topolev, V.Grinshpun, D.Kuvshinov,  D. Cheryasov
(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),

B.L.Carrasco, J.R.Valdes,V.Chavushyan, C.J.Martinez, V.M.Patino Alvarez,
M.L.H.Rodriguez (INAOE, OAGH)

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

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


MASTER-IAC robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Spain (IAC Teide Observatory) started inspect of the Fermi GRB211225.01 (trigger No 662084433,08h 18m 40.80s , +16d 48m 36.0s, R=6.39) errorbox  317 sec after notice time and 346 sec after trigger time at 2021-12-25 00:26:14 UT, with upper limit up to  17.5 mag. The observations began at zenith distance = 39 deg. The sun  altitude  is -80.6 deg. 

MASTER-Kislovodsk robotic telescope  located in Russia (Lomonosov MSU, Kislovodsk Solar Station of Pulkovo observatory) started inspect of the Fermi GRB211225.01 errorbox  412 sec after notice time and 441 sec after trigger time at 2021-12-25 00:27:49 UT, with upper limit up to  17.6 mag. The observations began at zenith distance = 27 deg. The sun  altitude  is -45.1 deg. 

The galactic latitude b = 27 deg., longitude l = 207 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1826404

We obtain a following upper limits.  

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

     376 | 2021-12-25 00:26:14 |          MASTER-IAC | (08h 16m 16.84s , +14d 35m 28.0s) |   C |    60 | 17.3 |        
     376 | 2021-12-25 00:26:14 |          MASTER-IAC | (08h 24m 46.84s , +14d 30m 43.6s) |   C |    60 | 17.2 |        
     471 | 2021-12-25 00:27:48 |          MASTER-IAC | (08h 04m 57.08s , +16d 30m 18.1s) |   C |    60 | 17.2 |        
     471 | 2021-12-25 00:27:48 |          MASTER-IAC | (08h 13m 31.88s , +16d 25m 32.5s) |   C |    60 | 17.0 |        
     531 | 2021-12-25 00:27:49 |   MASTER-Kislovodsk | (08h 22m 37.03s , +20d 15m 31.5s) |   C |   180 | 17.6 |        
     531 | 2021-12-25 00:27:49 |   MASTER-Kislovodsk | (08h 18m 00.90s , +20d 37m 26.0s) |   C |   180 | 16.7 |        
     592 | 2021-12-25 00:29:50 |          MASTER-IAC | (08h 12m 35.32s , +24d 05m 10.1s) |   C |    60 | 16.6 |        
     592 | 2021-12-25 00:29:50 |          MASTER-IAC | (08h 21m 37.65s , +24d 00m 21.3s) |   C |    60 | 17.4 |        
     696 | 2021-12-25 00:31:33 |          MASTER-IAC | (08h 12m 19.68s , +12d 42m 52.9s) |   C |    60 | 17.2 |        
     696 | 2021-12-25 00:31:33 |          MASTER-IAC | (08h 20m 45.41s , +12d 38m 06.0s) |   C |    60 | 17.1 |        
     795 | 2021-12-25 00:33:13 |          MASTER-IAC | (08h 00m 28.35s , +14d 35m 28.7s) |   C |    60 | 17.5 |        
     795 | 2021-12-25 00:33:13 |          MASTER-IAC | (08h 08m 58.10s , +14d 30m 42.6s) |   C |    60 | 17.3 |        
     906 | 2021-12-25 00:35:04 |          MASTER-IAC | (07h 53m 56.06s , +18d 24m 14.2s) |   C |    60 | 17.0 |        
     906 | 2021-12-25 00:35:04 |          MASTER-IAC | (08h 02m 36.25s , +18d 19m 28.6s) |   C |    60 | 17.1 |        
    1026 | 2021-12-25 00:37:04 |          MASTER-IAC | (07h 59m 32.24s , +20d 17m 26.6s) |   C |    60 | 16.2 |        
    1026 | 2021-12-25 00:37:04 |          MASTER-IAC | (08h 08m 19.14s , +20d 12m 39.4s) |   C |    60 | 16.9 |        
    1147 | 2021-12-25 00:39:04 |          MASTER-IAC | (07h 49m 03.05s , +16d 28m 05.4s) |   C |    60 | 16.8 |        
    1147 | 2021-12-25 00:39:04 |          MASTER-IAC | (07h 57m 37.90s , +16d 23m 18.5s) |   C |    60 | 16.8 |        
    1268 | 2021-12-25 00:41:05 |          MASTER-IAC | (08h 05m 01.20s , +23d 59m 36.7s) |   C |    60 | 16.8 |        
    1380 | 2021-12-25 00:42:58 |          MASTER-IAC | (08h 16m 14.52s , +14d 36m 30.7s) |   C |    60 | 16.9 |        
    1380 | 2021-12-25 00:42:58 |          MASTER-IAC | (08h 24m 44.33s , +14d 31m 42.9s) |   C |    60 | 16.9 |        
    1500 | 2021-12-25 00:44:57 |          MASTER-IAC | (08h 04m 57.37s , +16d 29m 04.4s) |   C |    60 | 16.9 |        
    1500 | 2021-12-25 00:44:57 |          MASTER-IAC | (08h 13m 32.01s , +16d 24m 17.7s) |   C |    60 | 16.8 |        
    1553 | 2021-12-25 00:45:51 |   MASTER-Kislovodsk | (07h 59m 00.41s , +12d 59m 56.6s) |   C |    60 | 15.9 |        
    1553 | 2021-12-25 00:45:51 |   MASTER-Kislovodsk | (08h 03m 18.68s , +12d 38m 06.6s) |   C |    60 | 17.4 |        
    1580 | 2021-12-25 00:46:18 |          MASTER-IAC | (08h 12m 38.63s , +24d 06m 43.2s) |   C |    60 | 17.0 |        
    1580 | 2021-12-25 00:46:18 |          MASTER-IAC | (08h 21m 41.33s , +24d 01m 51.6s) |   C |    60 | 17.0 |        
    1633 | 2021-12-25 00:47:11 |   MASTER-Kislovodsk | (08h 15m 33.29s , +10d 45m 37.7s) |   C |    60 | 17.4 |        
    1633 | 2021-12-25 00:47:11 |   MASTER-Kislovodsk | (08h 11m 17.27s , +11d 07m 23.7s) |   C |    60 | 16.1 |        
    1660 | 2021-12-25 00:47:38 |          MASTER-IAC | (08h 12m 14.45s , +12d 41m 50.6s) |   C |    60 | 17.0 |        
    1660 | 2021-12-25 00:47:38 |          MASTER-IAC | (08h 20m 40.11s , +12d 37m 01.4s) |   C |    60 | 16.8 |        
    1752 | 2021-12-25 00:49:10 |          MASTER-IAC | (08h 00m 28.41s , +14d 36m 24.4s) |   C |    60 | 16.7 |        
    1752 | 2021-12-25 00:49:10 |          MASTER-IAC | (08h 08m 58.26s , +14d 31m 37.9s) |   C |    60 | 16.6 |        
    1794 | 2021-12-25 00:49:51 |   MASTER-Kislovodsk | (08h 18m 01.19s , +10d 45m 37.9s) |   C |    60 | 12.8 |        
    1842 | 2021-12-25 00:50:39 |          MASTER-IAC | (07h 54m 01.14s , +18d 23m 09.4s) |   C |    60 | 16.9 |        
    1842 | 2021-12-25 00:50:39 |          MASTER-IAC | (08h 02m 41.45s , +18d 18m 24.0s) |   C |    60 | 16.9 |        
    1874 | 2021-12-25 00:51:12 |   MASTER-Kislovodsk | (07h 56m 14.18s , +22d 08m 25.9s) |   C |    60 | 17.6 |        
    1961 | 2021-12-25 00:52:39 |          MASTER-IAC | (07h 59m 26.71s , +20d 16m 23.3s) |   C |    60 | 15.9 |        
    1961 | 2021-12-25 00:52:39 |          MASTER-IAC | (08h 08m 13.93s , +20d 11m 33.8s) |   C |    60 | 16.7 |        
    2049 | 2021-12-25 00:54:07 |          MASTER-IAC | (07h 49m 08.83s , +16d 28m 25.1s) |   C |    60 | 17.1 |        
    2049 | 2021-12-25 00:54:07 |          MASTER-IAC | (07h 57m 43.88s , +16d 23m 37.5s) |   C |    60 | 17.0 |        
    2135 | 2021-12-25 00:55:33 |          MASTER-IAC | (08h 04m 59.14s , +24d 01m 06.4s) |   C |    60 | 17.1 |        
    2195 | 2021-12-25 00:56:33 |   MASTER-Kislovodsk | (07h 50m 08.07s , +20d 14m 02.0s) |   C |    60 | 15.4 |        
    2275 | 2021-12-25 00:57:53 |   MASTER-Kislovodsk | (08h 16m 48.60s , +18d 21m 34.2s) |   C |    60 | 15.0 |        
    2355 | 2021-12-25 00:59:13 |   MASTER-Kislovodsk | (08h 12m 33.37s , +22d 08m 52.8s) |   C |    60 | 13.2 |        
    2675 | 2021-12-25 01:04:33 |   MASTER-Kislovodsk | (07h 51m 32.37s , +14d 31m 45.7s) |   C |    60 | 14.2 |        
    2675 | 2021-12-25 01:04:33 |   MASTER-Kislovodsk | (07h 47m 13.71s , +14d 53m 29.9s) |   C |    60 | 12.7 |        
    2755 | 2021-12-25 01:05:53 |   MASTER-Kislovodsk | (08h 00m 02.87s , +10d 45m 34.4s) |   C |    60 | 15.1 |        
    2756 | 2021-12-25 01:05:53 |   MASTER-Kislovodsk | (07h 55m 49.34s , +11d 07m 15.0s) |   C |    60 | 13.5 |        
    2835 | 2021-12-25 01:07:13 |   MASTER-Kislovodsk | (07h 56m 11.24s , +22d 07m 49.4s) |   C |    60 | 14.5 |        
    3637 | 2021-12-25 01:20:34 |   MASTER-Kislovodsk | (07h 51m 26.42s , +14d 32m 18.0s) |   C |    60 | 15.6 |        
    3637 | 2021-12-25 01:20:35 |   MASTER-Kislovodsk | (07h 47m 08.47s , +14d 53m 54.9s) |   C |    60 | 14.0 |        
    3717 | 2021-12-25 01:21:54 |   MASTER-Kislovodsk | (08h 00m 00.18s , +10d 45m 31.4s) |   C |    60 | 15.0 |        
    3717 | 2021-12-25 01:21:54 |   MASTER-Kislovodsk | (07h 55m 47.25s , +11d 07m 05.3s) |   C |    60 | 13.8 |        
    3797 | 2021-12-25 01:23:14 |   MASTER-Kislovodsk | (07h 56m 13.08s , +22d 08m 11.4s) |   C |    60 | 15.7 |        
    3877 | 2021-12-25 01:24:35 |   MASTER-Kislovodsk | (08h 12m 40.00s , +08d 49m 41.0s) |   C |    60 | 16.7 |        
    3877 | 2021-12-25 01:24:35 |   MASTER-Kislovodsk | (08h 08m 28.84s , +09d 11m 17.4s) |   C |    60 | 15.4 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
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