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GCN Circular 29051

Subject
Fermi GRB 201215A: Global MASTER-Net observations report
Date
2020-12-15T15:30:49Z (4 years ago)
From
Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>
V. Lipunov, E. Gorbovskoy, V.Kornilov, N.Tyurina, P.Balanutsa, A.Kuznetsov, F.Balakin, 
V.Vladimirov, D. Vlasenko, I.Gorbunov, D.Zimnukhov, V.Senik, T.Pogrosheva,
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, O.Ershova 
(Irkutsk State University, API),

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

V. Yurkov, A. Gabovich, Yu. Sergienko 
(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 GRB 201215A ( Fermi GBM team, GCN 29046Loading...
 
 ) errorbox  31642 sec after notice time and 31660 sec after trigger time at 2020-12-15 15:11:09 UT, with upper limit up to  17.8 mag. Observations started at twilight.  The observations began at zenith distance = 77 deg. The sun  altitude  is -11.4 deg. 

The galactic latitude b = 68 deg., longitude l = 81 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1502976

We obtain a following upper limits.  

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

   31690 | 2020-12-15 15:11:09 |      MASTER-Tavrida | (14h 27m 07.35s , +49d 45m 44.0s) |   C |    60 | 16.8 |        
   32055 | 2020-12-15 15:17:13 |      MASTER-Tavrida | (14h 27m 02.08s , +49d 46m 19.8s) |   C |    60 | 17.3 |        
   32134 | 2020-12-15 15:18:32 |      MASTER-Tavrida | (14h 39m 26.74s , +49d 47m 24.8s) |   C |    60 | 17.5 |        
   32453 | 2020-12-15 15:23:51 |      MASTER-Tavrida | (14h 39m 30.99s , +49d 45m 32.6s) |   C |    60 | 17.8 |        
Filter C is a clear (unfiltred) band. 


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