TITLE: GCN CIRCULAR NUMBER: 27376 SUBJECT: Fermi trigger No 605756501: Global MASTER-Net observations report DATE: 20/03/13 02:45:12 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-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 200313A ( Fermi GBM team, GCN 27374) errorbox 41 sec after notice time and 71 sec after trigger time at 2020-03-13 01:42:47 UT, with upper limit up to 17.4 mag. The observations began at zenith distance = 72 deg. The sun altitude is -35.1 deg. The galactic latitude b = -12 deg., longitude l = 182 deg. Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/observ.php?id=1312412 We obtain a following upper limits. Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment _________|_____________________|_____________________|____________________________________|_____|_______|_______|________ 76 | 2020-03-13 01:42:47 | MASTER-OAFA | (05h 02m 00.29s , +20d 57m 42.4s) | C | 10 | 16.6 | 122 | 2020-03-13 01:43:29 | MASTER-OAFA | (05h 01m 56.21s , +20d 59m 11.6s) | C | 20 | 16.9 | 180 | 2020-03-13 01:44:21 | MASTER-OAFA | (05h 01m 56.09s , +20d 57m 41.3s) | C | 30 | 17.1 | 248 | 2020-03-13 01:45:24 | MASTER-OAFA | (05h 01m 59.88s , +20d 59m 19.5s) | C | 40 | 17.2 | 329 | 2020-03-13 01:46:35 | MASTER-OAFA | (05h 01m 53.08s , +20d 58m 30.4s) | C | 60 | 17.4 | 425 | 2020-03-13 01:48:06 | MASTER-OAFA | (05h 01m 52.20s , +20d 59m 32.3s) | C | 70 | 17.3 | 536 | 2020-03-13 01:49:48 | MASTER-OAFA | (05h 01m 58.90s , +20d 58m 34.4s) | C | 90 | 17.3 | 673 | 2020-03-13 01:51:49 | MASTER-OAFA | (05h 01m 52.49s , +20d 57m 35.6s) | C | 120 | 17.2 | 839 | 2020-03-13 01:54:20 | MASTER-OAFA | (05h 01m 57.99s , +20d 58m 03.5s) | C | 150 | 17.3 | 1035 | 2020-03-13 01:57:21 | MASTER-OAFA | (05h 01m 55.87s , +20d 59m 18.9s) | C | 180 | 17.2 | 1246 | 2020-03-13 02:00:53 | MASTER-OAFA | (05h 01m 55.94s , +20d 57m 46.0s) | C | 180 | 17.0 | 1458 | 2020-03-13 02:04:24 | MASTER-OAFA | (05h 01m 58.08s , +20d 59m 23.5s) | C | 180 | 16.7 | 1669 | 2020-03-13 02:07:55 | MASTER-OAFA | (05h 01m 52.94s , +20d 58m 38.0s) | C | 180 | 16.1 | Filter C is a clear (unfiltred) band. The observation and reduction will continue. The message may be cited.