TITLE: GCN CIRCULAR NUMBER: 26946 SUBJECT: Fermi trigger No 602071201: Global MASTER-Net observations report DATE: 20/01/30 19:30:37 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-SAAO robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in South Africa (South African Astronomical Observatory) started inspect of the Fermi GRB200130.42 (trigger No 602071201,09h 10m 07.20s , -51d 20m 24.0s, R=3.5) errorbox 33136 sec after trigger time at 2020-01-30 19:12:13 UT, with upper limit up to 18.7 mag. The observations began at zenith distance = 46 deg. The sun altitude is -17.6 deg. The galactic latitude b = -2 deg., longitude l = 272 deg. Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/observ.php?id=1272682 We obtain a following upper limits. Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment _________|_____________________|_____________________|____________________________________|_____|_______|_______|________ 33227 | 2020-01-30 19:12:13 | MASTER-SAAO | (09h 02m 05.88s , -49d 54m 28.8s) | C | 180 | 18.1 | 33441 | 2020-01-30 19:15:47 | MASTER-SAAO | (09h 02m 04.55s , -49d 52m 45.1s) | C | 180 | 18.7 | Filter C is a clear (unfiltred) band. The observation and reduction will continue. The message may be cited.