TITLE: GCN CIRCULAR NUMBER: 28251 SUBJECT: Fermi trigger No 619270776: Global MASTER-Net observations report DATE: 20/08/16 19:00:16 GMT FROM: Vladimir Lipunov at Moscow State U/Krylov Obs 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), H.Levato (Instituto de Ciencias Astronomicas, de la Tierra y del Espacio ICATE), 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-Tavrida robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in Russia (Lomonosov MSU, SAI Crimea astronomical station) started inspect of the Fermi GRB200816.49 (trigger No 619270776,20h 00m 31.92s , -30d 13m 58.8s, R=19.17) errorbox 22943 sec after notice time and 22970 sec after trigger time at 2020-08-16 18:02:22 UT, with upper limit up to 18.0 mag. Observations started at twilight. The observations began at zenith distance = 74 deg. The sun altitude is -13.1 deg. The galactic latitude b = -28 deg., longitude l = 11 deg. Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/observ.php?id=1420890 We obtain a following upper limits. Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment _________|_____________________|_____________________|____________________________________|_____|_______|_______|________ 23001 | 2020-08-16 18:02:22 | MASTER-Tavrida | (20h 03m 14.73s , -24d 03m 38.1s) | C | 60 | 15.3 | 23324 | 2020-08-16 18:07:45 | MASTER-Tavrida | (20h 20m 45.47s , -20d 03m 18.8s) | C | 60 | 16.1 | 23404 | 2020-08-16 18:09:05 | MASTER-Tavrida | (20h 11m 53.97s , -24d 03m 50.0s) | C | 60 | 14.6 | 23789 | 2020-08-16 18:15:30 | MASTER-Tavrida | (20h 20m 46.82s , -20d 04m 53.1s) | C | 60 | 17.1 | 23870 | 2020-08-16 18:16:51 | MASTER-Tavrida | (20h 29m 13.95s , -20d 03m 27.6s) | C | 60 | 16.4 | 24334 | 2020-08-16 18:24:35 | MASTER-Tavrida | (20h 29m 11.82s , -20d 03m 10.2s) | C | 60 | 17.4 | 24496 | 2020-08-16 18:27:17 | MASTER-Tavrida | (20h 37m 16.16s , -22d 04m 52.4s) | C | 60 | 15.2 | 24576 | 2020-08-16 18:28:37 | MASTER-Tavrida | (20h 02m 43.85s , -22d 04m 18.8s) | C | 60 | 17.9 | 24737 | 2020-08-16 18:31:18 | MASTER-Tavrida | (20h 22m 59.74s , -18d 04m 10.6s) | C | 60 | 18.0 | 24818 | 2020-08-16 18:32:39 | MASTER-Tavrida | (20h 37m 11.09s , -22d 05m 25.1s) | C | 60 | 16.5 | 24898 | 2020-08-16 18:33:59 | MASTER-Tavrida | (20h 45m 55.37s , -22d 05m 11.4s) | C | 60 | 13.2 | 24979 | 2020-08-16 18:35:20 | MASTER-Tavrida | (20h 02m 43.60s , -22d 03m 15.9s) | C | 60 | 17.9 | 25059 | 2020-08-16 18:36:40 | MASTER-Tavrida | (20h 11m 21.66s , -22d 04m 47.9s) | C | 60 | 18.0 | 25140 | 2020-08-16 18:38:01 | MASTER-Tavrida | (20h 26m 56.21s , -28d 03m 39.8s) | C | 60 | 13.1 | 25301 | 2020-08-16 18:40:42 | MASTER-Tavrida | (20h 22m 53.80s , -18d 03m 15.7s) | C | 60 | 18.0 | 25382 | 2020-08-16 18:42:03 | MASTER-Tavrida | (20h 31m 23.61s , -18d 04m 26.5s) | C | 60 | 18.0 | 25462 | 2020-08-16 18:43:23 | MASTER-Tavrida | (20h 45m 49.88s , -22d 05m 41.2s) | C | 60 | 16.9 | 25542 | 2020-08-16 18:44:43 | MASTER-Tavrida | (20h 11m 24.79s , -22d 05m 04.8s) | C | 60 | 18.0 | 25703 | 2020-08-16 18:47:24 | MASTER-Tavrida | (20h 31m 20.86s , -18d 05m 18.0s) | C | 60 | 18.0 | 25784 | 2020-08-16 18:48:45 | MASTER-Tavrida | (20h 37m 42.47s , -20d 04m 37.2s) | C | 60 | 17.9 | 25865 | 2020-08-16 18:50:06 | MASTER-Tavrida | (20h 40m 52.69s , -26d 04m 41.2s) | C | 60 | 16.3 | 25945 | 2020-08-16 18:51:26 | MASTER-Tavrida | (20h 05m 16.68s , -26d 04m 37.9s) | C | 60 | 17.8 | 26026 | 2020-08-16 18:52:48 | MASTER-Tavrida | (19h 50m 40.47s , -28d 04m 38.2s) | C | 60 | 17.9 | 26107 | 2020-08-16 18:54:08 | MASTER-Tavrida | (20h 37m 48.30s , -20d 04m 02.0s) | C | 60 | 17.9 | Filter C is a clear (unfiltred) band. The observation and reduction will continue. The message may be cited.