TITLE: GCN CIRCULAR NUMBER: 27933 SUBJECT: Fermi GRB 200613A: Global MASTER-Net observations report DATE: 20/06/13 18:15:10 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-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 200613A ( Fermi GBM team, GCN 27926) errorbox 44637 sec after notice time and 44665 sec after trigger time at 2020-06-13 17:54:33 UT, with upper limit up to 18.2 mag. Observations started at twilight. The observations began at zenith distance = 42 deg. The sun altitude is -9.8 deg. The galactic latitude b = 51 deg., longitude l = 173 deg. Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/observ.php?id=1380771 We obtain a following upper limits. Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment _________|_____________________|_____________________|____________________________________|_____|_______|_______|________ 44756 | 2020-06-13 17:54:33 | MASTER-Kislovodsk | (10h 11m 31.91s , +46d 20m 06.9s) | C | 180 | 17.2 | 44756 | 2020-06-13 17:54:33 | MASTER-Kislovodsk | (10h 11m 44.05s , +45d 51m 37.8s) | C | 180 | 17.0 | 44897 | 2020-06-13 17:57:54 | MASTER-Kislovodsk | (09h 50m 41.65s , +52d 24m 17.7s) | C | 60 | 17.4 | 44897 | 2020-06-13 17:57:54 | MASTER-Kislovodsk | (10h 04m 14.80s , +51d 58m 14.9s) | C | 60 | 17.2 | 44977 | 2020-06-13 17:59:15 | MASTER-Kislovodsk | (09h 50m 35.85s , +50d 23m 21.1s) | C | 60 | 17.5 | 44977 | 2020-06-13 17:59:15 | MASTER-Kislovodsk | (10h 03m 33.20s , +49d 57m 12.1s) | C | 60 | 17.5 | 45138 | 2020-06-13 18:01:55 | MASTER-Kislovodsk | (09h 51m 19.61s , +48d 25m 06.7s) | C | 60 | 17.6 | 45138 | 2020-06-13 18:01:55 | MASTER-Kislovodsk | (10h 03m 45.71s , +47d 58m 51.5s) | C | 60 | 17.5 | 45278 | 2020-06-13 18:03:16 | MASTER-Kislovodsk | (10h 11m 37.07s , +46d 17m 06.7s) | C | 180 | 18.2 | 45278 | 2020-06-13 18:03:16 | MASTER-Kislovodsk | (10h 11m 44.14s , +45d 48m 54.3s) | C | 180 | 18.2 | 45419 | 2020-06-13 18:06:37 | MASTER-Kislovodsk | (09h 50m 42.12s , +52d 24m 34.5s) | C | 60 | 18.0 | 45419 | 2020-06-13 18:06:37 | MASTER-Kislovodsk | (10h 04m 12.70s , +51d 58m 30.7s) | C | 60 | 17.8 | 45499 | 2020-06-13 18:07:57 | MASTER-Kislovodsk | (09h 50m 36.32s , +50d 23m 57.5s) | C | 60 | 18.1 | 45499 | 2020-06-13 18:07:57 | MASTER-Kislovodsk | (10h 03m 31.39s , +49d 57m 48.8s) | C | 60 | 17.9 | Filter C is a clear (unfiltred) band. The observation and reduction will continue. The message may be cited.