TITLE:   GCN CIRCULAR
NUMBER:  31405
SUBJECT: Fermi  trigger No 663274898: Global MASTER-Net observations report 
DATE:    22/01/08 01:15:23 GMT
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-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) started inspect of the Fermi GRB220107.79 (trigger No 663274898,14h 35m 31.20s , +20d 06m 00.0s, R=1) errorbox  9102 sec after notice time and 19844 sec after trigger time at 2022-01-08 00:32:17 UT, with upper limit up to  19.0 mag. The observations began at zenith distance = 60 deg. The sun  altitude  is -50.1 deg. 

The galactic latitude b = 65 deg., longitude l = 22 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1842261

We obtain a following upper limits.  

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

   19874 | 2022-01-08 00:32:17 |      MASTER-Tavrida | (14h 28m 27.11s , +20d 25m 06.2s) |   C |    60 | 16.3 |        
   19954 | 2022-01-08 00:33:37 |      MASTER-Tavrida | (14h 37m 07.04s , +20d 24m 54.8s) |   C |    60 | 17.4 |        
   20034 | 2022-01-08 00:34:57 |      MASTER-Tavrida | (14h 34m 30.14s , +18d 32m 50.0s) |   C |    60 | 17.6 |        
   20113 | 2022-01-08 00:36:16 |      MASTER-Tavrida | (14h 42m 56.29s , +18d 30m 52.6s) |   C |    60 | 17.4 |        
   20272 | 2022-01-08 00:38:55 |      MASTER-Tavrida | (14h 31m 55.04s , +22d 20m 05.5s) |   C |    60 | 18.5 |        
   20651 | 2022-01-08 00:45:14 |      MASTER-Tavrida | (14h 26m 54.19s , +18d 31m 46.9s) |   C |    60 | 18.3 |        
   20730 | 2022-01-08 00:46:33 |      MASTER-Tavrida | (14h 44m 39.82s , +20d 24m 56.5s) |   C |    60 | 18.4 |        
   21090 | 2022-01-08 00:52:33 |      MASTER-Tavrida | (14h 28m 26.85s , +20d 27m 21.8s) |   C |    60 | 18.7 |        
   21169 | 2022-01-08 00:53:52 |      MASTER-Tavrida | (14h 37m 05.75s , +20d 26m 06.4s) |   C |    60 | 19.0 |        
   21307 | 2022-01-08 00:56:10 |      MASTER-Tavrida | (14h 42m 58.44s , +18d 31m 12.9s) |   C |    60 | 18.5 |        
   21465 | 2022-01-08 00:58:48 |      MASTER-Tavrida | (14h 31m 58.11s , +22d 19m 26.0s) |   C |    60 | 18.9 |        
   21545 | 2022-01-08 01:00:08 |      MASTER-Tavrida | (14h 39m 48.34s , +22d 20m 53.2s) |   C |    60 | 18.6 |        
   21784 | 2022-01-08 01:04:07 |      MASTER-Tavrida | (14h 26m 56.97s , +18d 32m 32.5s) |   C |    60 | 18.7 |        
   21864 | 2022-01-08 01:05:27 |      MASTER-Tavrida | (14h 44m 40.00s , +20d 25m 00.2s) |   C |    60 | 19.0 |        
Filter C is a clear (unfiltred) band. 


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