[vsnet-grb-info 28338] Fermi trigger No 647653174: Global MASTER-Net observations report

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  30441
SUBJECT: Fermi  trigger No 647653174: Global MASTER-Net observations report 
DATE:    21/07/11 00:30:38 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-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 GRB210710.99 (trigger No 647653174,19h 38m 36.00s , +16d 54m 00.0s, R=4.91) errorbox 55 sec after trigger time at 2021-07-10 23:40:24 UT, with upper limit up to  17.2 mag. The observations began at zenith distance = 27 deg. The sun  altitude  is -35.6 deg. 

MASTER-Kislovodsk robotic telescope  located in Russia (Lomonosov MSU, Kislovodsk Solar Station of Pulkovo observatory) started inspect of the Fermi GRB210710.99 errorbox 56 sec after trigger time at 2021-07-10 23:40:26 UT, with upper limit up to  17.6 mag. Observations started at twilight.  The observations began at zenith distance = 37 deg. The sun  altitude  is -16.9 deg. 

MASTER-SAAO robotic telescope  located in South Africa (South African Astronomical Observatory) started inspect of the Fermi GRB210710.99 errorbox  26 sec after notice time and 103 sec after trigger time at 2021-07-10 23:41:13 UT, with upper limit up to  18.0 mag. The observations began at zenith distance = 50 deg. The sun  altitude  is -74.0 deg. 

The galactic latitude b = -3 deg., longitude l = 54 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1657395

We obtain a following upper limits.  

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

      60 | 2021-07-10 23:40:24 |          MASTER-IAC | (19h 37m 41.72s , +16d 52m 05.9s) |  P| |    10 | 16.0 |        
      60 | 2021-07-10 23:40:24 |          MASTER-IAC | (19h 36m 47.33s , +16d 58m 04.2s) |  P- |    10 | 16.0 |        
      62 | 2021-07-10 23:40:26 |   MASTER-Kislovodsk | (19h 39m 02.62s , +16d 56m 01.0s) |   C |    10 | 16.0 |        
      77 | 2021-07-10 23:40:26 |   MASTER-Kislovodsk | (19h 39m 02.61s , +16d 56m 01.1s) |   C |    40 | 16.6 |  Coadd 
      62 | 2021-07-10 23:40:26 |   MASTER-Kislovodsk | (19h 34m 35.98s , +17d 18m 53.5s) |   C |    10 | 16.1 |        
      92 | 2021-07-10 23:40:55 |          MASTER-IAC | (19h 37m 35.58s , +16d 51m 06.5s) |  P| |    10 | 16.0 |        
      92 | 2021-07-10 23:40:55 |          MASTER-IAC | (19h 36m 41.21s , +16d 57m 04.9s) |  P- |    10 | 15.9 |        
      92 | 2021-07-10 23:40:56 |   MASTER-Kislovodsk | (19h 39m 08.94s , +16d 54m 56.9s) |   C |    10 | 16.3 |        
      92 | 2021-07-10 23:40:56 |   MASTER-Kislovodsk | (19h 34m 42.46s , +17d 17m 51.1s) |   C |    10 | 16.5 |        
     114 | 2021-07-10 23:41:13 |         MASTER-SAAO | (19h 38m 52.48s , +16d 46m 33.0s) |   C |    20 | 17.7 |        
     127 | 2021-07-10 23:41:26 |          MASTER-IAC | (19h 37m 43.14s , +16d 51m 31.2s) |  P| |    20 | 16.5 |        
     127 | 2021-07-10 23:41:26 |          MASTER-IAC | (19h 36m 48.79s , +16d 57m 29.9s) |  P- |    20 | 16.4 |        
     127 | 2021-07-10 23:41:26 |   MASTER-Kislovodsk | (19h 39m 02.67s , +16d 53m 51.7s) |   C |    20 | 16.5 |        
     127 | 2021-07-10 23:41:26 |   MASTER-Kislovodsk | (19h 34m 36.29s , +17d 16m 50.4s) |   C |    20 | 16.9 |        
     162 | 2021-07-10 23:41:26 |   MASTER-Kislovodsk | (19h 34m 36.28s , +17d 16m 50.5s) |   C |    90 | 17.6 |  Coadd 
     158 | 2021-07-10 23:41:52 |         MASTER-SAAO | (19h 38m 47.40s , +16d 45m 37.2s) |   C |    30 | 17.9 |        
     172 | 2021-07-10 23:42:06 |   MASTER-Kislovodsk | (19h 39m 09.91s , +16d 54m 07.6s) |   C |    30 | 16.8 |        
     217 | 2021-07-10 23:42:06 |   MASTER-Kislovodsk | (19h 39m 09.90s , +16d 54m 07.6s) |   C |   120 | 17.1 |  Coadd 
     172 | 2021-07-10 23:42:06 |   MASTER-Kislovodsk | (19h 34m 43.57s , +17d 17m 05.9s) |   C |    30 | 17.4 |        
     172 | 2021-07-10 23:42:06 |          MASTER-IAC | (19h 37m 39.57s , +16d 52m 46.6s) |  P| |    30 | 16.8 |        
     172 | 2021-07-10 23:42:06 |          MASTER-IAC | (19h 36m 45.18s , +16d 58m 45.5s) |  P- |    30 | 16.7 |        
     213 | 2021-07-10 23:42:42 |         MASTER-SAAO | (19h 38m 54.48s , +16d 45m 57.8s) |   C |    40 | 18.0 |        
     227 | 2021-07-10 23:42:56 |   MASTER-Kislovodsk | (19h 39m 07.02s , +16d 55m 27.1s) |   C |    40 | 16.9 |        
     227 | 2021-07-10 23:42:56 |   MASTER-Kislovodsk | (19h 34m 40.72s , +17d 18m 25.1s) |   C |    40 | 17.5 |        
     227 | 2021-07-10 23:42:56 |          MASTER-IAC | (19h 37m 39.54s , +16d 51m 07.9s) |  P| |    40 | 17.0 |        
     227 | 2021-07-10 23:42:56 |          MASTER-IAC | (19h 36m 45.18s , +16d 57m 06.5s) |  P- |    40 | 16.9 |        
     277 | 2021-07-10 23:43:41 |         MASTER-SAAO | (19h 38m 51.58s , +16d 47m 33.5s) |   C |    50 | 18.0 |        
     292 | 2021-07-10 23:43:56 |          MASTER-IAC | (19h 37m 42.07s , +16d 52m 41.1s) |  P| |    50 | 17.1 |        
     292 | 2021-07-10 23:43:56 |          MASTER-IAC | (19h 36m 47.71s , +16d 58m 40.1s) |  P- |    50 | 17.1 |        
     292 | 2021-07-10 23:43:56 |   MASTER-Kislovodsk | (19h 39m 06.89s , +16d 53m 56.1s) |   C |    50 | 16.7 |        
     292 | 2021-07-10 23:43:56 |   MASTER-Kislovodsk | (19h 34m 40.75s , +17d 16m 53.2s) |   C |    50 | 17.2 |        
     352 | 2021-07-10 23:44:51 |         MASTER-SAAO | (19h 38m 51.95s , +16d 45m 51.4s) |   C |    60 | 18.0 |        
     367 | 2021-07-10 23:45:06 |          MASTER-IAC | (19h 37m 37.01s , +16d 52m 06.7s) |  P| |    60 | 17.2 |        
     367 | 2021-07-10 23:45:06 |          MASTER-IAC | (19h 36m 42.67s , +16d 58m 05.9s) |  P- |    60 | 17.1 |        
     367 | 2021-07-10 23:45:06 |   MASTER-Kislovodsk | (19h 39m 08.73s , +16d 55m 26.2s) |   C |    60 | 17.1 |        
     367 | 2021-07-10 23:45:06 |   MASTER-Kislovodsk | (19h 34m 42.66s , +17d 18m 22.5s) |   C |    60 | 17.6 |        
Filter C is a clear (unfiltred) band. 


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