[vsnet-grb-info 28232] Fermi trigger No 646443989: Global MASTER-Net observations report

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  30335
SUBJECT: Fermi  trigger No 646443989: Global MASTER-Net observations report 
DATE:    21/06/28 00:04:16 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 GRB210626.99 (trigger No 646443989,23h 36m 31.20s , +09d 36m 00.0s, R=1.48) errorbox  9433 sec after notice time and 82250 sec after trigger time at 2021-06-27 22:37:15 UT, with upper limit up to  16.7 mag. The observations began at zenith distance = 60 deg. The sun  altitude  is -21.0 deg. 

The galactic latitude b = -49 deg., longitude l = 95 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1646536

We obtain a following upper limits.  

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

   82281 | 2021-06-27 22:37:15 |   MASTER-Kislovodsk | (23h 38m 12.88s , +08d 30m 42.1s) |   C |    60 | 16.2 |        
   82281 | 2021-06-27 22:37:15 |   MASTER-Kislovodsk | (23h 33m 58.09s , +08d 54m 56.3s) |   C |    60 | 16.4 |        
   82454 | 2021-06-27 22:40:09 |   MASTER-Kislovodsk | (23h 42m 03.12s , +10d 50m 25.0s) |   C |    60 | 16.4 |        
   82454 | 2021-06-27 22:40:09 |   MASTER-Kislovodsk | (23h 46m 19.58s , +10d 26m 12.4s) |   C |    60 | 16.7 |        
   85019 | 2021-06-27 23:22:53 |   MASTER-Kislovodsk | (23h 41m 55.63s , +10d 49m 26.8s) |   C |    60 | 15.3 |        
   85019 | 2021-06-27 23:22:53 |   MASTER-Kislovodsk | (23h 46m 23.02s , +10d 24m 54.3s) |   C |    60 | 15.2 |        
   85099 | 2021-06-27 23:24:13 |   MASTER-Kislovodsk | (23h 30m 54.08s , +10d 25m 07.8s) |   C |    60 | 15.4 |        
   85179 | 2021-06-27 23:25:34 |   MASTER-Kislovodsk | (23h 36m 03.69s , +12d 44m 19.9s) |   C |    60 | 15.9 |        
   85179 | 2021-06-27 23:25:34 |   MASTER-Kislovodsk | (23h 40m 33.84s , +12d 19m 51.0s) |   C |    60 | 16.1 |        
   85259 | 2021-06-27 23:26:54 |   MASTER-Kislovodsk | (23h 49m 08.78s , +08d 57m 07.8s) |   C |    60 | 15.7 |        
   85339 | 2021-06-27 23:28:14 |   MASTER-Kislovodsk | (23h 27m 23.89s , +07d 02m 33.3s) |   C |    60 | 16.0 |        
   85339 | 2021-06-27 23:28:14 |   MASTER-Kislovodsk | (23h 31m 48.86s , +06d 37m 56.4s) |   C |    60 | 16.2 |        
   85420 | 2021-06-27 23:29:34 |   MASTER-Kislovodsk | (23h 42m 34.06s , +07d 01m 17.9s) |   C |    60 | 15.7 |        
   85901 | 2021-06-27 23:37:35 |   MASTER-Kislovodsk | (23h 33m 44.04s , +08d 57m 42.0s) |   C |    60 | 16.1 |        
   85901 | 2021-06-27 23:37:35 |   MASTER-Kislovodsk | (23h 38m 11.30s , +08d 33m 16.7s) |   C |    60 | 16.3 |        
   85981 | 2021-06-27 23:38:55 |   MASTER-Kislovodsk | (23h 41m 55.10s , +10d 50m 29.6s) |   C |    60 | 16.1 |        
   85981 | 2021-06-27 23:38:55 |   MASTER-Kislovodsk | (23h 46m 23.89s , +10d 26m 04.7s) |   C |    60 | 16.3 |        
   86061 | 2021-06-27 23:40:15 |   MASTER-Kislovodsk | (23h 26m 22.99s , +10d 49m 45.7s) |   C |    60 | 16.1 |        
   86061 | 2021-06-27 23:40:15 |   MASTER-Kislovodsk | (23h 30m 52.85s , +10d 25m 23.3s) |   C |    60 | 16.5 |        
   86141 | 2021-06-27 23:41:36 |   MASTER-Kislovodsk | (23h 36m 09.76s , +12d 43m 55.3s) |   C |    60 | 15.8 |        
   86141 | 2021-06-27 23:41:36 |   MASTER-Kislovodsk | (23h 40m 41.41s , +12d 19m 33.2s) |   C |    60 | 16.3 |        
   86221 | 2021-06-27 23:42:56 |   MASTER-Kislovodsk | (23h 49m 10.45s , +08d 57m 22.9s) |   C |    60 | 15.7 |        
   86302 | 2021-06-27 23:44:16 |   MASTER-Kislovodsk | (23h 27m 19.08s , +07d 02m 02.1s) |   C |    60 | 15.6 |        
   86302 | 2021-06-27 23:44:16 |   MASTER-Kislovodsk | (23h 31m 45.46s , +06d 37m 33.7s) |   C |    60 | 15.9 |        
   86382 | 2021-06-27 23:45:36 |   MASTER-Kislovodsk | (23h 42m 41.36s , +07d 03m 15.9s) |   C |    60 | 15.4 |        
Filter C is a clear (unfiltred) band. 


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