TITLE: GCN CIRCULAR NUMBER: 32462 SUBJECT: Fermi trigger No 681998863: Global MASTER-Net observations report DATE: 22/08/13 05:00:09 GMT FROM: Vladimir Lipunov at Moscow State U/Krylov Obs 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 GRB220812.51 (trigger No 681998863,02h 42m 43.20s , -43d 12m 36.0s, R=6.87) errorbox 57539 sec after notice time and 57570 sec after trigger time at 2022-08-13 04:07:08 UT, with upper limit up to 17.5 mag. The observations began at zenith distance = 66 deg. The sun altitude is -72.1 deg. The galactic latitude b = -62 deg., longitude l = 255 deg. Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/observ.php?id=2054739 We obtain a following upper limits. Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment _________|_____________________|_____________________|____________________________________|_____|_______|_______|________ 57601 | 2022-08-13 04:07:08 | MASTER-OAFA | (02h 39m 29.39s , -43d 23m 24.5s) | C | 60 | 17.1 | 57692 | 2022-08-13 04:08:40 | MASTER-OAFA | (02h 50m 16.91s , -43d 24m 08.2s) | C | 60 | 16.9 | 58153 | 2022-08-13 04:16:20 | MASTER-OAFA | (02h 55m 45.95s , -45d 17m 02.6s) | C | 60 | 17.2 | 58614 | 2022-08-13 04:24:02 | MASTER-OAFA | (02h 39m 27.50s , -43d 22m 31.1s) | C | 60 | 17.0 | 58706 | 2022-08-13 04:25:33 | MASTER-OAFA | (02h 50m 20.03s , -43d 23m 41.5s) | C | 60 | 17.0 | 59179 | 2022-08-13 04:33:26 | MASTER-OAFA | (02h 44m 34.53s , -45d 16m 11.1s) | C | 60 | 17.4 | 59270 | 2022-08-13 04:34:58 | MASTER-OAFA | (02h 55m 53.34s , -45d 16m 55.0s) | C | 60 | 17.1 | 59635 | 2022-08-13 04:41:02 | MASTER-OAFA | (02h 39m 28.90s , -43d 24m 10.1s) | C | 60 | 17.0 | 59726 | 2022-08-13 04:42:34 | MASTER-OAFA | (02h 50m 23.52s , -43d 22m 34.0s) | C | 60 | 16.8 | 59818 | 2022-08-13 04:44:06 | MASTER-OAFA | (02h 23m 15.29s , -45d 16m 56.3s) | C | 60 | 17.5 | 59910 | 2022-08-13 04:45:37 | MASTER-OAFA | (02h 34m 33.82s , -45d 17m 42.8s) | C | 60 | 17.2 | 60185 | 2022-08-13 04:50:13 | MASTER-OAFA | (02h 44m 36.67s , -45d 18m 11.9s) | C | 60 | 17.1 | 60277 | 2022-08-13 04:51:44 | MASTER-OAFA | (02h 55m 52.29s , -45d 16m 24.6s) | C | 60 | 17.2 | 60368 | 2022-08-13 04:53:16 | MASTER-OAFA | (02h 34m 48.12s , -41d 28m 45.5s) | C | 60 | 17.4 | Filter C is a clear (unfiltred) band. The observation and reduction will continue. The message may be cited.