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GCN Circular 31724

Subject
MAXI GRB220310.02: Global MASTER-Net observations report
Date
2022-03-10T01:17:11Z (2 years ago)
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, E.Minkina, A.Chasovnikov, V.Topolev, D.Kuvshinov,  D.Cheryasov, Ya.Kechin
(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),

L.Carrasco, J.R.Valdes, V.Chavushyan, V.M.Patino Alvarez, J.Martinez, A.R.Corella, L.H.Rodriguez 
(INAOE, Guillermo Haro Astrophysics Observatory),

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

A. Gabovich, V.Yurkov 
(Blagoveschensk Educational State University)


MASTER-OAFA robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Argentina (OAFA observatory of San Juan National University) started inspect of the MAXI GRB220310.02 (trigger No 648001812,11h 14m 26.88s , +23d 27m 03.6s, R=1) errorbox 1874 sec after trigger time at 2022-03-10 00:59:36 UT, with upper limit up to  17.9 mag. The observations began at zenith distance = 76 deg. The sun  altitude  is -25.7 deg. 

MASTER-SAAO robotic telescope  located in South Africa (South African Astronomical Observatory) started inspect of the MAXI GRB220310.02 errorbox  8 sec after notice time and 2024 sec after trigger time at 2022-03-10 01:02:06 UT, with upper limit up to  18.7 mag. The observations began at zenith distance = 65 deg. The sun  altitude  is -41.9 deg. 

MASTER-Kislovodsk robotic telescope  located in Russia (Lomonosov MSU, Kislovodsk Solar Station of Pulkovo observatory) started inspect of the MAXI GRB220310.02 errorbox  30 sec after notice time and 2046 sec after trigger time at 2022-03-10 01:02:28 UT, with upper limit up to  15.2 mag. The observations began at zenith distance = 50 deg. The sun  altitude  is -27.8 deg. 

The galactic latitude b = 68 deg., longitude l = 218 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1905736

We obtain a following upper limits.  

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

    1964 | 2022-03-10 00:59:36 |         MASTER-OAFA | (11h 14m 46.59s , +24d 18m 03.1s) |   C |   180 | 17.0 |        
    2144 | 2022-03-10 00:59:36 |         MASTER-OAFA | (11h 14m 46.59s , +24d 18m 03.1s) |   C |   540 | 17.9 |  Coadd 
    2114 | 2022-03-10 01:02:06 |         MASTER-SAAO | (11h 14m 29.14s , +23d 34m 47.5s) | P\  |   180 | 17.8 |        
    2294 | 2022-03-10 01:02:06 |         MASTER-SAAO | (11h 14m 29.12s , +23d 34m 47.6s) | P\  |   540 | 18.7 |  Coadd 
    2136 | 2022-03-10 01:02:28 |   MASTER-Kislovodsk | (11h 14m 31.95s , +23d 26m 31.3s) |  P- |   180 | 14.8 |        
    2136 | 2022-03-10 01:02:28 |   MASTER-Kislovodsk | (11h 14m 14.53s , +23d 50m 31.6s) |   C |   180 | 13.3 |        
    2281 | 2022-03-10 01:04:53 |         MASTER-OAFA | (11h 14m 53.44s , +24d 17m 02.7s) |   C |   180 | 16.9 |        
    2301 | 2022-03-10 01:05:12 |         MASTER-OAFA | (11h 14m 52.60s , +24d 16m 15.7s) |   C |   180 | 17.4 |        
    2313 | 2022-03-10 01:05:25 |         MASTER-SAAO | (11h 14m 36.14s , +23d 33m 54.3s) | P\  |   180 | 17.9 |        
    2337 | 2022-03-10 01:05:48 |   MASTER-Kislovodsk | (11h 14m 37.19s , +23d 26m 35.9s) |  P- |   180 | 14.4 |        
    2513 | 2022-03-10 01:08:45 |         MASTER-SAAO | (11h 14m 29.52s , +23d 33m 01.4s) | P\  |   180 | 18.0 |        
    2537 | 2022-03-10 01:09:09 |   MASTER-Kislovodsk | (11h 14m 35.47s , +23d 28m 22.4s) |  P- |   180 | 15.2 |        
    2537 | 2022-03-10 01:09:09 |   MASTER-Kislovodsk | (11h 14m 13.90s , +23d 52m 18.3s) |   C |   180 | 13.1 |        
    2520 | 2022-03-10 01:09:51 |         MASTER-OAFA | (11h 08m 46.46s , +22d 56m 48.2s) |   C |    60 | 17.2 |        
Filter C is a clear (unfiltred) band. 


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