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GCN Circular 32142

Subject
Fermi trigger No 675411172: Global MASTER-Net observations report
Date
2022-05-28T07:15:27Z (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 Fermi GRB220528.26 (trigger No 675411172,20h 44m 50.40s , +24d 18m 00.0s, R=4.91) errorbox  311 sec after notice time and 345 sec after trigger time at 2022-05-28 06:18:32 UT, with upper limit up to  17.8 mag. The observations began at zenith distance = 64 deg. The sun  altitude  is -64.3 deg. 

MASTER-OAGH robotic telescope  located in Mexico (OAGH National Institute for Astrophysics, Optics and Electronics) started inspect of the Fermi GRB220528.26 errorbox  447 sec after notice time and 481 sec after trigger time at 2022-05-28 06:20:49 UT, with upper limit up to  19.1 mag. The observations began at zenith distance = 70 deg. The sun  altitude  is -35.9 deg. 

The galactic latitude b = -12 deg., longitude l = 68 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1988403

We obtain a following upper limits.  

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

     375 | 2022-05-28 06:18:32 |         MASTER-OAFA | (20h 40m 59.72s , +21d 20m 19.8s) |   C |    60 | 17.6 |        
     467 | 2022-05-28 06:20:04 |         MASTER-OAFA | (20h 49m 36.66s , +21d 21m 10.0s) |   C |    60 | 17.6 |        
     512 | 2022-05-28 06:20:49 |         MASTER-OAGH | (20h 43m 33.08s , +23d 59m 41.5s) |   C |    60 | 16.7 |        
     512 | 2022-05-28 06:20:49 |         MASTER-OAGH | (20h 43m 58.22s , +23d 34m 24.8s) |   C |    60 | 16.4 |        
     558 | 2022-05-28 06:21:35 |         MASTER-OAFA | (20h 41m 20.26s , +19d 25m 19.8s) |   C |    60 | 17.7 |        
     680 | 2022-05-28 06:23:07 |         MASTER-OAFA | (20h 43m 26.94s , +23d 31m 27.3s) |   C |   120 | 17.7 |        
     746 | 2022-05-28 06:24:03 |         MASTER-OAGH | (20h 44m 49.64s , +24d 18m 02.5s) |   C |   140 | 18.8 |        
     746 | 2022-05-28 06:24:03 |         MASTER-OAGH | (20h 45m 15.15s , +23d 53m 03.4s) |   C |   140 | 18.4 |        
     846 | 2022-05-28 06:25:38 |         MASTER-OAFA | (20h 43m 24.51s , +23d 33m 11.9s) |   C |   150 | 17.8 |        
     923 | 2022-05-28 06:26:45 |         MASTER-OAGH | (20h 45m 18.19s , +23d 54m 03.3s) |   C |   170 | 18.5 |        
     923 | 2022-05-28 06:26:45 |         MASTER-OAGH | (20h 44m 52.91s , +24d 19m 03.1s) |   C |   170 | 18.9 |        
    1119 | 2022-05-28 06:29:56 |         MASTER-OAGH | (20h 44m 47.49s , +24d 18m 31.3s) |   C |   180 | 19.1 |        
    1119 | 2022-05-28 06:29:56 |         MASTER-OAGH | (20h 45m 12.48s , +23d 53m 30.2s) |   C |   180 | 18.6 |        
    1321 | 2022-05-28 06:33:18 |         MASTER-OAGH | (20h 44m 46.82s , +24d 19m 33.1s) |   C |   180 | 18.6 |        
    1321 | 2022-05-28 06:33:18 |         MASTER-OAGH | (20h 45m 11.49s , +23d 54m 30.4s) |   C |   180 | 18.5 |        
    1261 | 2022-05-28 06:33:18 |         MASTER-OAFA | (20h 49m 53.14s , +19d 26m 06.0s) |   C |    60 | 17.7 |        
    1702 | 2022-05-28 06:40:39 |         MASTER-OAFA | (20h 41m 00.10s , +21d 19m 17.7s) |   C |    60 | 17.6 |        
    1926 | 2022-05-28 06:44:23 |         MASTER-OAFA | (20h 41m 23.99s , +19d 26m 52.9s) |   C |    60 | 17.7 |        
    2070 | 2022-05-28 06:46:47 |         MASTER-OAGH | (20h 43m 31.55s , +24d 01m 42.3s) |   C |    60 | 18.1 |        
    2070 | 2022-05-28 06:46:47 |         MASTER-OAGH | (20h 43m 54.97s , +23d 36m 11.4s) |   C |    60 | 17.8 |        
    2151 | 2022-05-28 06:48:08 |         MASTER-OAGH | (20h 52m 17.24s , +24d 00m 04.3s) |   C |    60 | 18.7 |        
    2151 | 2022-05-28 06:48:08 |         MASTER-OAGH | (20h 52m 41.11s , +23d 34m 39.1s) |   C |    60 | 18.2 |        
    2169 | 2022-05-28 06:48:26 |         MASTER-OAFA | (20h 53m 21.98s , +25d 08m 02.3s) |   C |    60 | 17.5 |        
    2233 | 2022-05-28 06:49:30 |         MASTER-OAGH | (20h 26m 52.19s , +24d 00m 51.2s) |   C |    60 | 18.3 |        
    2233 | 2022-05-28 06:49:30 |         MASTER-OAGH | (20h 27m 14.34s , +23d 35m 12.2s) |   C |    60 | 18.1 |        
    2261 | 2022-05-28 06:49:58 |         MASTER-OAFA | (20h 49m 53.11s , +19d 27m 02.8s) |   C |    60 | 17.8 |        
    2314 | 2022-05-28 06:50:51 |         MASTER-OAGH | (20h 35m 37.65s , +24d 01m 48.6s) |   C |    60 | 18.7 |        
    2314 | 2022-05-28 06:50:51 |         MASTER-OAGH | (20h 36m 00.11s , +23d 36m 14.3s) |   C |    60 | 18.2 |        
    2352 | 2022-05-28 06:51:29 |         MASTER-OAFA | (20h 27m 36.55s , +25d 07m 34.2s) |   C |    60 | 17.5 |        
    2395 | 2022-05-28 06:52:12 |         MASTER-OAGH | (20h 26m 04.24s , +22d 05m 50.0s) |   C |    60 | 18.6 |        
    2395 | 2022-05-28 06:52:12 |         MASTER-OAGH | (20h 26m 25.98s , +21d 40m 15.5s) |   C |    60 | 18.2 |        
    2443 | 2022-05-28 06:53:00 |         MASTER-OAFA | (20h 36m 35.81s , +25d 07m 24.6s) |   C |    60 | 17.5 |        
    2476 | 2022-05-28 06:53:33 |         MASTER-OAGH | (20h 34m 48.53s , +22d 05m 57.7s) |   C |    60 | 18.5 |        
    2476 | 2022-05-28 06:53:33 |         MASTER-OAGH | (20h 35m 10.57s , +21d 40m 27.1s) |   C |    60 | 18.3 |        
    2535 | 2022-05-28 06:54:32 |         MASTER-OAFA | (20h 57m 27.23s , +21d 18m 58.8s) |   C |    60 | 17.7 |        
    2558 | 2022-05-28 06:54:55 |         MASTER-OAGH | (20h 49m 54.47s , +27d 48m 16.0s) |   C |    60 | 18.7 |        
    2558 | 2022-05-28 06:54:55 |         MASTER-OAGH | (20h 50m 17.53s , +27d 22m 38.9s) |   C |    60 | 18.2 |        
    2627 | 2022-05-28 06:56:03 |         MASTER-OAFA | (21h 06m 08.60s , +21d 20m 28.2s) |   C |    60 | 17.6 |        
    2639 | 2022-05-28 06:56:16 |         MASTER-OAGH | (20h 59m 00.19s , +27d 49m 45.6s) |   C |    60 | 18.4 |        
    2639 | 2022-05-28 06:56:16 |         MASTER-OAGH | (20h 59m 23.69s , +27d 24m 13.4s) |   C |    60 | 18.0 |        
    2718 | 2022-05-28 06:57:35 |         MASTER-OAFA | (20h 41m 00.32s , +21d 20m 13.7s) |   C |    60 | 17.7 |        
    2720 | 2022-05-28 06:57:37 |         MASTER-OAGH | (20h 32m 43.27s , +27d 49m 53.8s) |   C |    60 | 18.3 |        
    2720 | 2022-05-28 06:57:37 |         MASTER-OAGH | (20h 33m 05.02s , +27d 24m 05.0s) |   C |    60 | 18.1 |        
    2801 | 2022-05-28 06:58:58 |         MASTER-OAGH | (20h 41m 49.50s , +27d 48m 51.9s) |   C |    60 | 18.3 |        
    2801 | 2022-05-28 06:58:58 |         MASTER-OAGH | (20h 42m 11.62s , +27d 23m 07.5s) |   C |    60 | 17.9 |        
    2809 | 2022-05-28 06:59:06 |         MASTER-OAFA | (20h 49m 38.43s , +21d 21m 02.5s) |   C |    60 | 17.6 |        
    2883 | 2022-05-28 07:00:20 |         MASTER-OAGH | (20h 26m 45.59s , +20d 11m 58.0s) |   C |    60 | 18.6 |        
    2883 | 2022-05-28 07:00:20 |         MASTER-OAGH | (20h 27m 06.38s , +19d 46m 26.0s) |   C |    60 | 18.2 |        
    2901 | 2022-05-28 07:00:38 |         MASTER-OAFA | (20h 41m 28.47s , +19d 26m 12.4s) |   C |    60 | 17.6 |        
    3176 | 2022-05-28 07:05:13 |         MASTER-OAGH | (20h 35m 13.14s , +20d 12m 10.6s) |   C |    60 | 19.0 |        
    3176 | 2022-05-28 07:05:13 |         MASTER-OAGH | (20h 35m 34.10s , +19d 46m 26.6s) |   C |    60 | 18.5 |        
    3258 | 2022-05-28 07:06:35 |         MASTER-OAGH | (20h 43m 35.70s , +24d 01m 45.8s) |   C |    60 | 18.7 |        
    3258 | 2022-05-28 07:06:35 |         MASTER-OAGH | (20h 43m 57.21s , +23d 35m 56.7s) |   C |    60 | 18.2 |        
Filter C is a clear (unfiltred) band. 


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