TITLE: GCN CIRCULAR NUMBER: 25288 SUBJECT: Fermi trigger No 586896678 Global MASTER-Net observations report DATE: 19/08/08 11:31:13 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 (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-Tavrida robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in Russia (Lomonosov MSU, SAI Crimea astronomical station) started inspect of the Fermi GRB190807.79 (trigger No 586896678, 2h 25m 55.99s , +44d 15m 00.00s, R=26.6667) errorbox 19868 sec after trigger time at 2019-08-08 00:22:22 UT, with upper limit up to 20.0 mag. The observations began at zenit distance = 11 deg. The sun altitude is -20.2 deg. The galactic latitude b = -60 deg., longitude l = 98 deg. Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/observ.php?id=1099670 We obtain a following upper limits. Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment _________|_____________________|_____________________|____________________________________|_____|_______|_______|________ 19959 | 2019-08-08 00:22:22 | MASTER-Tavrida | ( 0h 39m 54.89s , +41d 11m 31.38s) | C | 180 | 19.6 | 20139 | 2019-08-08 00:22:22 | MASTER-Tavrida | ( 0h 39m 54.90s , +41d 11m 31.29s) | C | 540 | 20.0 | Coadd 19959 | 2019-08-08 00:22:22 | MASTER-Tavrida | ( 0h 41m 43.01s , +41d 13m 34.69s) | C | 180 | 19.8 | 20139 | 2019-08-08 00:22:22 | MASTER-Tavrida | ( 0h 41m 43.01s , +41d 13m 34.66s) | C | 540 | 20.0 | Coadd Filter C is a clear (unfiltred) band. The observation and reduction will continue. The message may be cited.