TITLE: GCN CIRCULAR NUMBER: 31154 SUBJECT: Fermi GRB 211130A: Global MASTER-Net observations report DATE: 21/11/30 17:30:11 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, T.Pogrosheva, E.Minkina, A.Chasovnikov, V.Topolev, V.Grinshpun, D.Kuvshinov, D. Cheryasov (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), A. Tlatov, D. Dormidontov (Kislovodsk Solar Station of the Pulkovo Observatory), A. Gabovich, V.Yurkov (Blagoveschensk Educational State University) MASTER-Kislovodsk robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in Russia (Lomonosov MSU, Kislovodsk Solar Station of Pulkovo observatory) started inspect of the Fermi GRB 211130A ( Fermi GBM team, GCN 31151) errorbox 693 sec after notice time and 732 sec after trigger time at 2021-11-30 15:28:39 UT, with upper limit up to 17.5 mag. The observations began at zenith distance = 74 deg. The sun altitude is -19.8 deg. The galactic latitude b = -84 deg., longitude l = 185 deg. Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/observ.php?id=1800540 We obtain a following upper limits. Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment _________|_____________________|_____________________|____________________________________|_____|_______|_______|________ 802 | 2021-11-30 15:28:39 | MASTER-Kislovodsk | (01h 12m 10.65s , -24d 10m 36.9s) | P- | 140 | 15.5 | 802 | 2021-11-30 15:28:39 | MASTER-Kislovodsk | (01h 12m 21.91s , -24d 33m 47.5s) | C | 140 | 13.6 | 983 | 2021-11-30 15:31:19 | MASTER-Kislovodsk | (01h 12m 07.92s , -24d 09m 06.7s) | P- | 180 | 16.8 | 983 | 2021-11-30 15:31:19 | MASTER-Kislovodsk | (01h 12m 25.40s , -24d 32m 24.1s) | C | 180 | 13.2 | 1183 | 2021-11-30 15:34:40 | MASTER-Kislovodsk | (01h 12m 08.03s , -24d 10m 12.7s) | P- | 180 | 16.5 | 1183 | 2021-11-30 15:34:40 | MASTER-Kislovodsk | (01h 12m 20.64s , -24d 33m 26.8s) | C | 180 | 12.8 | 1384 | 2021-11-30 15:38:00 | MASTER-Kislovodsk | (01h 12m 10.08s , -24d 08m 56.4s) | P- | 180 | 16.6 | 1564 | 2021-11-30 15:38:00 | MASTER-Kislovodsk | (01h 12m 10.08s , -24d 08m 56.4s) | P- | 540 | 17.5 | Coadd 1384 | 2021-11-30 15:38:00 | MASTER-Kislovodsk | (01h 12m 22.20s , -24d 32m 06.5s) | C | 180 | 13.5 | 1584 | 2021-11-30 15:41:21 | MASTER-Kislovodsk | (01h 12m 04.09s , -24d 09m 34.1s) | P- | 180 | 17.0 | 1584 | 2021-11-30 15:41:21 | MASTER-Kislovodsk | (01h 12m 16.60s , -24d 32m 42.7s) | C | 180 | 13.7 | 1784 | 2021-11-30 15:44:41 | MASTER-Kislovodsk | (01h 12m 05.14s , -24d 08m 31.6s) | P- | 180 | 17.1 | 1785 | 2021-11-30 15:44:41 | MASTER-Kislovodsk | (01h 12m 18.01s , -24d 31m 39.2s) | C | 180 | 15.0 | 6472 | 2021-11-30 17:03:49 | MASTER-Kislovodsk | (01h 22m 39.34s , -25d 13m 11.6s) | C | 60 | 12.8 | 6793 | 2021-11-30 17:09:10 | MASTER-Kislovodsk | (01h 04m 47.15s , -23d 20m 56.2s) | C | 60 | 15.2 | Filter C is a clear (unfiltred) band. The observation and reduction will continue. The message may be cited.