TITLE: GCN CIRCULAR NUMBER: 30935 SUBJECT: Fermi trigger No 655673024: Global MASTER-Net observations report DATE: 21/10/13 05:30:44 GMT FROM: Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru> V. Lipunov, E. Gorbovskoy, V.Kornilov, N.Tyurina, P.Balanutsa, A.Kuznetsov, F.Balakin, V.Vladimirov, D. Vlasenko, I.Gorbunov, D.Zimnukhov, V.Senik, T.Pogrosheva, 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, O.Ershova (Irkutsk State University, API), A. Tlatov, D. Dormidontov (Kislovodsk Solar Station of the Pulkovo Observatory), V. Yurkov, A. Gabovich, Yu. Sergienko (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 GRB211011.81 (trigger No 655673024,14h 46m 55.99s , -06d 16m 59.9s, R=31.25) errorbox 1 days 21825 sec after notice time and 1 days 22129 sec after trigger time at 2021-10-13 01:32:29 UT, with upper limit up to 16.9 mag. The observations began at zenith distance = 82 deg. The sun altitude is -34.1 deg. The galactic latitude b = 46 deg., longitude l = 348 deg. Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/observ.php?id=1748835 We obtain a following upper limits. Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment _________|_____________________|_____________________|____________________________________|_____|_______|_______|________ 108560 | 2021-10-13 01:32:29 | MASTER-OAFA | (16h 13m 16.18s , -20d 52m 34.4s) | C | 60 | 16.1 | 108640 | 2021-10-13 01:33:49 | MASTER-OAFA | (16h 21m 52.49s , -20d 53m 54.0s) | C | 60 | 16.5 | 108719 | 2021-10-13 01:35:09 | MASTER-OAFA | (16h 17m 14.15s , -18d 59m 11.2s) | C | 60 | 16.2 | 108879 | 2021-10-13 01:37:49 | MASTER-OAFA | (16h 08m 06.99s , -24d 41m 40.3s) | C | 60 | 16.0 | 108961 | 2021-10-13 01:39:10 | MASTER-OAFA | (16h 17m 05.08s , -24d 41m 33.0s) | C | 60 | 16.2 | 109047 | 2021-10-13 01:40:36 | MASTER-OAFA | (16h 07m 07.80s , -26d 35m 12.0s) | C | 60 | 16.3 | 109340 | 2021-10-13 01:45:30 | MASTER-OAFA | (16h 16m 05.76s , -26d 34m 42.8s) | C | 60 | 16.6 | 109420 | 2021-10-13 01:46:49 | MASTER-OAFA | (16h 07m 12.06s , -28d 28m 30.2s) | C | 60 | 15.5 | 109502 | 2021-10-13 01:48:11 | MASTER-OAFA | (16h 16m 16.05s , -28d 29m 53.0s) | C | 60 | 16.5 | 109590 | 2021-10-13 01:49:39 | MASTER-OAFA | (16h 29m 37.17s , -20d 52m 37.5s) | C | 60 | 16.2 | 109670 | 2021-10-13 01:50:59 | MASTER-OAFA | (16h 38m 09.47s , -20d 53m 50.1s) | C | 60 | 16.3 | 109754 | 2021-10-13 01:52:23 | MASTER-OAFA | (16h 26m 48.83s , -22d 47m 57.9s) | C | 60 | 16.3 | 109995 | 2021-10-13 01:56:24 | MASTER-OAFA | (16h 33m 52.79s , -24d 41m 29.8s) | C | 60 | 16.9 | 110076 | 2021-10-13 01:57:46 | MASTER-OAFA | (16h 08m 14.71s , -30d 21m 30.3s) | C | 60 | 16.1 | 110156 | 2021-10-13 01:59:05 | MASTER-OAFA | (16h 17m 35.86s , -30d 23m 27.3s) | C | 60 | 16.4 | 110241 | 2021-10-13 02:00:31 | MASTER-OAFA | (16h 24m 08.74s , -26d 33m 59.5s) | C | 60 | 16.5 | 110321 | 2021-10-13 02:01:51 | MASTER-OAFA | (16h 33m 16.35s , -26d 35m 21.5s) | C | 60 | 16.7 | 110401 | 2021-10-13 02:03:10 | MASTER-OAFA | (16h 24m 32.71s , -28d 28m 05.7s) | C | 60 | 16.6 | Filter C is a clear (unfiltred) band. The observation and reduction will continue. The message may be cited.