TITLE: GCN CIRCULAR NUMBER: 32084 SUBJECT: Fermi GRB 220522A: Global MASTER-Net observations report DATE: 22/05/22 10:15:26 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 GRB 220522A ( Fermi GBM team, GCN 32080) errorbox 25131 sec after notice time and 25168 sec after trigger time at 2022-05-22 09:38:29 UT, with upper limit up to 17.8 mag. The observations began at zenith distance = 69 deg. The sun altitude is -21.3 deg. The galactic latitude b = -53 deg., longitude l = 158 deg. Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/observ.php?id=1980647 We obtain a following upper limits. Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment _________|_____________________|_____________________|____________________________________|_____|_______|_______|________ 25199 | 2022-05-22 09:38:29 | MASTER-OAFA | (01h 25m 33.24s , -01d 29m 05.9s) | C | 60 | 12.1 | 25290 | 2022-05-22 09:40:00 | MASTER-OAFA | (01h 33m 33.22s , -01d 30m 35.2s) | C | 60 | 11.9 | 25553 | 2022-05-22 09:44:23 | MASTER-OAFA | (01h 48m 48.07s , -03d 23m 42.2s) | C | 60 | 12.8 | 25828 | 2022-05-22 09:48:58 | MASTER-OAFA | (01h 40m 43.30s , +00d 23m 11.7s) | C | 60 | 13.9 | 25919 | 2022-05-22 09:50:29 | MASTER-OAFA | (01h 48m 48.37s , +00d 23m 47.7s) | C | 60 | 13.9 | 26010 | 2022-05-22 09:52:00 | MASTER-OAFA | (01h 56m 05.57s , +02d 17m 47.7s) | C | 60 | 12.3 | 26192 | 2022-05-22 09:55:02 | MASTER-OAFA | (01h 56m 19.31s , +04d 13m 20.4s) | C | 60 | 13.6 | 26375 | 2022-05-22 09:58:04 | MASTER-OAFA | (01h 56m 00.09s , +00d 23m 31.4s) | C | 60 | 17.8 | 26466 | 2022-05-22 09:59:36 | MASTER-OAFA | (02h 03m 57.63s , +00d 25m 11.8s) | C | 60 | 16.4 | 26557 | 2022-05-22 10:01:07 | MASTER-OAFA | (01h 55m 57.43s , -01d 30m 15.9s) | C | 60 | 15.9 | 26648 | 2022-05-22 10:02:38 | MASTER-OAFA | (02h 03m 59.46s , -01d 28m 57.7s) | C | 60 | 15.2 | 26739 | 2022-05-22 10:04:09 | MASTER-OAFA | (02h 11m 05.89s , +00d 25m 34.9s) | C | 60 | 14.6 | 26831 | 2022-05-22 10:05:41 | MASTER-OAFA | (02h 19m 12.75s , +00d 24m 43.5s) | C | 60 | 14.5 | 26922 | 2022-05-22 10:07:12 | MASTER-OAFA | (01h 56m 03.70s , +02d 17m 21.1s) | C | 60 | 14.7 | 27013 | 2022-05-22 10:08:43 | MASTER-OAFA | (02h 04m 10.53s , +02d 17m 59.5s) | C | 60 | 15.2 | Filter C is a clear (unfiltred) band. The observation and reduction will continue. The message may be cited.