TITLE: GCN CIRCULAR NUMBER: 28428 SUBJECT: Integral GRB200914.53: Global MASTER-Net observations report DATE: 20/09/15 21:38:06 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), 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) was pointed to the Integral GRB200914.53 (trigger No 8711,16h 57m 59.03s , -36d 18m 59.5s, R=0.0495) errorbox 38109 sec after notice time and 38209 sec after trigger time at 2020-09-14 23:25:20 UT, with upper limit up to 18.1 mag. Observations started at twilight. The observations began at zenith distance = 20 deg. The sun altitude is -13.4 deg. The galactic latitude b = 3 deg., longitude l = 349 deg. Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/observ.php?id=1440713 We obtain a following upper limits. Tmid-T0 | Site |Filt.| Expt. | Limit| Comment _________|_____________________|_____|_______|______|________ 38300 | MASTER-OAFA | C | 180 | 17.7 | 38480 | MASTER-OAFA | C | 540 | 18.0 | Coadd 39110 | MASTER-OAFA | C | 1800 | 18.1 | Coadd 38499 | MASTER-OAFA | C | 180 | 17.9 | 38698 | MASTER-OAFA | C | 180 | 17.9 | 38898 | MASTER-OAFA | C | 180 | 17.9 | 39078 | MASTER-OAFA | C | 540 | 18.1 | Coadd 39098 | MASTER-OAFA | C | 180 | 18.0 | 39298 | MASTER-OAFA | C | 180 | 17.9 | 39497 | MASTER-OAFA | C | 180 | 18.0 | 39677 | MASTER-OAFA | C | 540 | 18.1 | Coadd 39697 | MASTER-OAFA | C | 180 | 17.9 | 39896 | MASTER-OAFA | C | 180 | 17.9 | 40096 | MASTER-OAFA | C | 180 | 18.0 | 40276 | MASTER-OAFA | C | 540 | 18.1 | Coadd 40295 | MASTER-OAFA | C | 180 | 18.0 | 40494 | MASTER-OAFA | C | 180 | 18.0 | 40694 | MASTER-OAFA | C | 180 | 18.0 | 40874 | MASTER-OAFA | C | 540 | 18.1 | Coadd 40893 | MASTER-OAFA | C | 180 | 18.0 | 41093 | MASTER-OAFA | C | 180 | 18.0 | 41292 | MASTER-OAFA | C | 180 | 18.0 | 41472 | MASTER-OAFA | C | 540 | 18.1 | Coadd 41492 | MASTER-OAFA | C | 180 | 18.0 | 41691 | MASTER-OAFA | C | 180 | 18.0 | Filter C is a clear (unfiltred) band. The observation and reduction will continue. The message may be cited.