[vsnet-grb-info 28293] Fermi trigger No 647252274: Global MASTER-Net observations report

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  30396
SUBJECT: Fermi  trigger No 647252274: Global MASTER-Net observations report 
DATE:    21/07/06 19:45:31 GMT
FROM:    Vladimir Lipunov at Moscow State U/Krylov Obs  <lipunov at 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-Kislovodsk robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Russia (Lomonosov MSU, Kislovodsk Solar Station of Pulkovo observatory) started inspect of the Fermi GRB210706.35 (trigger No 647252274,20h 55m 50.40s , +12d 21m 36.0s, R=3.23) errorbox  24113 sec after notice time and 40800 sec after trigger time at 2021-07-06 19:37:49 UT, with upper limit up to  16.9 mag. The observations began at zenith distance = 55 deg. The sun  altitude  is -20.6 deg. 

The galactic latitude b = -21 deg., longitude l = 60 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1654210

We obtain a following upper limits.  

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

   40830 | 2021-07-06 19:37:49 |   MASTER-Kislovodsk | (21h 00m 45.69s , +12d 43m 40.8s) |   C |    60 | 16.2 |        
   40830 | 2021-07-06 19:37:49 |   MASTER-Kislovodsk | (21h 04m 51.43s , +12d 19m 01.7s) |   C |    60 | 16.9 |        
   40910 | 2021-07-06 19:39:10 |   MASTER-Kislovodsk | (20h 52m 03.53s , +10d 48m 51.9s) |   C |    60 | 15.8 |        
   40910 | 2021-07-06 19:39:10 |   MASTER-Kislovodsk | (20h 56m 07.88s , +10d 24m 10.5s) |   C |    60 | 16.6 |        
   40991 | 2021-07-06 19:40:30 |   MASTER-Kislovodsk | (20h 59m 21.62s , +14d 12m 41.7s) |   C |    60 | 16.7 |        
   40991 | 2021-07-06 19:40:30 |   MASTER-Kislovodsk | (20h 55m 12.99s , +14d 37m 17.1s) |   C |    60 | 16.1 |        
Filter C is a clear (unfiltred) band. 


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