TITLE: GCN CIRCULAR NUMBER: 27451 SUBJECT: Fermi trigger No 606918292: Global MASTER-Net observations report DATE: 20/03/26 20:15:08 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-Tunka robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in Russia (Applied Physics Institute, Irkutsk State University) started inspect of the Fermi GRB 200326A ( Fermi GBM team, GCN 27447) errorbox 19451 sec after trigger time at 2020-03-26 17:48:58 UT, with upper limit up to 18.1 mag. The observations began at zenith distance = 78 deg. The sun altitude is -35.9 deg. The galactic latitude b = 19 deg., longitude l = 355 deg. Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/observ.php?id=1322435 We obtain a following upper limits. Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment _________|_____________________|_____________________|____________________________________|_____|_______|_______|________ 19481 | 2020-03-26 17:48:58 | MASTER-Tunka | (15h 59m 56.19s , -16d 05m 17.0s) | C | 60 | 17.9 | 19561 | 2020-03-26 17:50:18 | MASTER-Tunka | (16h 07m 25.70s , -14d 05m 29.1s) | C | 60 | 18.1 | 19641 | 2020-03-26 17:51:39 | MASTER-Tunka | (15h 53m 23.54s , -18d 06m 48.7s) | C | 60 | 17.9 | 19802 | 2020-03-26 17:54:19 | MASTER-Tunka | (16h 23m 54.03s , -14d 08m 22.8s) | C | 60 | 17.9 | 20045 | 2020-03-26 17:58:22 | MASTER-Tunka | (16h 16m 31.52s , -16d 06m 14.7s) | C | 60 | 17.8 | 20576 | 2020-03-26 18:07:14 | MASTER-Tunka | (15h 47m 54.66s , -20d 06m 06.1s) | C | 60 | 17.9 | 20659 | 2020-03-26 18:08:36 | MASTER-Tunka | (16h 40m 25.97s , -14d 08m 58.2s) | C | 60 | 17.8 | 20751 | 2020-03-26 18:10:08 | MASTER-Tunka | (16h 10m 06.15s , -18d 06m 28.3s) | C | 60 | 17.7 | 21340 | 2020-03-26 18:19:57 | MASTER-Tunka | (16h 33m 14.00s , -16d 07m 15.3s) | C | 60 | 18.0 | 21420 | 2020-03-26 18:21:17 | MASTER-Tunka | (16h 04m 54.51s , -20d 06m 27.2s) | C | 60 | 17.6 | 21699 | 2020-03-26 18:25:57 | MASTER-Tunka | (16h 26m 56.12s , -18d 06m 54.3s) | C | 60 | 17.9 | 21941 | 2020-03-26 18:29:59 | MASTER-Tunka | (16h 49m 52.24s , -16d 08m 41.8s) | C | 60 | 17.6 | 23027 | 2020-03-26 18:48:04 | MASTER-Tunka | (16h 21m 49.78s , -20d 04m 52.6s) | C | 60 | 17.8 | 23107 | 2020-03-26 18:49:25 | MASTER-Tunka | (16h 00m 33.07s , -22d 05m 51.5s) | C | 60 | 17.7 | 23188 | 2020-03-26 18:50:45 | MASTER-Tunka | (16h 43m 48.61s , -18d 06m 22.5s) | C | 60 | 17.8 | 23350 | 2020-03-26 18:53:28 | MASTER-Tunka | (16h 17m 54.79s , -22d 05m 43.1s) | C | 60 | 17.6 | 23512 | 2020-03-26 18:56:09 | MASTER-Tunka | (16h 38m 57.11s , -20d 06m 43.4s) | C | 60 | 17.8 | 23694 | 2020-03-26 18:59:12 | MASTER-Tunka | (15h 57m 22.35s , -24d 03m 40.9s) | C | 60 | 17.5 | 26790 | 2020-03-26 19:50:47 | MASTER-Tunka | (16h 15m 06.20s , -24d 03m 35.1s) | C | 60 | 17.6 | 26871 | 2020-03-26 19:52:08 | MASTER-Tunka | (16h 35m 16.41s , -22d 05m 17.1s) | C | 60 | 17.9 | 26954 | 2020-03-26 19:53:31 | MASTER-Tunka | (16h 13m 13.61s , -26d 04m 18.4s) | C | 60 | 17.6 | 27036 | 2020-03-26 19:54:54 | MASTER-Tunka | (16h 32m 28.92s , -24d 04m 25.3s) | C | 60 | 18.1 | 27137 | 2020-03-26 19:56:35 | MASTER-Tunka | (15h 55m 29.65s , -26d 03m 53.5s) | C | 60 | 17.5 | 27221 | 2020-03-26 19:57:58 | MASTER-Tunka | (16h 49m 57.97s , -24d 05m 16.4s) | C | 60 | 17.7 | 27303 | 2020-03-26 19:59:21 | MASTER-Tunka | (16h 52m 30.54s , -22d 05m 48.1s) | C | 60 | 17.5 | 27391 | 2020-03-26 20:00:48 | MASTER-Tunka | (16h 55m 58.04s , -20d 05m 23.1s) | C | 60 | 17.6 | Filter C is a clear (unfiltred) band. The observation and reduction will continue. The message may be cited.