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GCN Circular 32026

Subject
Fermi GRB 220512A: Global MASTER-Net observations report
Date
2022-05-12T05:30:34Z (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-OAGH robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Mexico (OAGH National Institute for Astrophysics, Optics and Electronics) started inspect of the Fermi GRB 220512A ( Fermi GBM team, GCN 32025) errorbox  470 sec after notice time and 509 sec after trigger time at 2022-05-12 05:12:24 UT, with upper limit up to  19.2 mag. The observations began at zenith distance = 55 deg. The sun  altitude  is -32.8 deg. 

The galactic latitude b = 30 deg., longitude l = 129 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1970452

We obtain a following upper limits.  

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

     540 | 2022-05-12 05:12:24 |         MASTER-OAGH | (10h 24m 51.71s , +84d 48m 08.6s) |   C |    60 | 18.2 |        
     540 | 2022-05-12 05:12:24 |         MASTER-OAGH | (10h 19m 25.52s , +85d 11m 06.3s) |   C |    60 | 18.5 |        
     651 | 2022-05-12 05:13:46 |         MASTER-OAGH | (08h 33m 00.84s , +84d 00m 48.6s) |   C |   120 | 19.1 |        
     651 | 2022-05-12 05:13:46 |         MASTER-OAGH | (08h 27m 58.70s , +84d 25m 22.4s) |   C |   120 | 19.0 |        
     803 | 2022-05-12 05:16:07 |         MASTER-OAGH | (08h 28m 04.69s , +84d 25m 48.8s) |   C |   140 | 18.8 |        
     803 | 2022-05-12 05:16:07 |         MASTER-OAGH | (08h 33m 07.25s , +84d 01m 13.8s) |   C |   140 | 18.8 |        
     984 | 2022-05-12 05:18:48 |         MASTER-OAGH | (08h 33m 02.46s , +84d 02m 18.4s) |   C |   180 | 18.9 |        
     984 | 2022-05-12 05:18:48 |         MASTER-OAGH | (08h 27m 58.84s , +84d 26m 56.3s) |   C |   180 | 19.0 |        
    1185 | 2022-05-12 05:22:10 |         MASTER-OAGH | (08h 33m 02.68s , +84d 01m 00.5s) |   C |   180 | 19.2 |        
    1185 | 2022-05-12 05:22:10 |         MASTER-OAGH | (08h 27m 59.98s , +84d 25m 41.9s) |   C |   180 | 19.2 |        
Filter C is a clear (unfiltred) band. 


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