TITLE: GCN CIRCULAR NUMBER: 26706 SUBJECT: Fermi trigger No 600448273: Global MASTER-Net observations report DATE: 20/01/11 15:30:18 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-Tunka robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in Russia (Applied Physics Institute, Irkutsk State University) started inspect of the Fermi GRB200111.63 (trigger No 600448273,06h 57m 57.60s , +31d 43m 12.0s, R=3.47) errorbox 63 sec after notice time and 98 sec after trigger time at 2020-01-11 15:12:46 UT, with upper limit up to 15.5 mag. The observations began at zenith distance = 25 deg. The sun altitude is -52.5 deg. MASTER-Amur robotic telescope located in Russia (Blagoveshchensk State Pedagogical University) started inspect of the Fermi GRB200111.63 errorbox 77 sec after notice time and 113 sec after trigger time at 2020-01-11 15:13:01 UT, with upper limit up to 16.6 mag. The observations began at zenith distance = 19 deg. The sun altitude is -61.4 deg. MASTER-Tavrida robotic telescope located in Russia (Lomonosov MSU, SAI Crimea astronomical station) started inspect of the Fermi GRB200111.63 errorbox 546 sec after notice time and 581 sec after trigger time at 2020-01-11 15:20:49 UT, with upper limit up to 13.5 mag. Observations started at twilight. The observations began at zenith distance = 69 deg. The sun altitude is -9.9 deg. The galactic latitude b = 16 deg., longitude l = 185 deg. Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/observ.php?id=1257171 We obtain a following upper limits. Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment _________|_____________________|_____________________|____________________________________|_____|_______|_______|________ 109 | 2020-01-11 15:12:46 | MASTER-Tunka | (06h 52m 26.41s , +31d 40m 09.4s) | P| | 20 | 14.8 | 124 | 2020-01-11 15:13:01 | MASTER-Amur | (06h 47m 20.88s , +31d 41m 48.8s) | C | 20 | 15.9 | 148 | 2020-01-11 15:13:26 | MASTER-Tunka | (06h 52m 24.19s , +31d 40m 10.6s) | P| | 20 | 15.1 | 168 | 2020-01-11 15:13:41 | MASTER-Amur | (06h 47m 22.89s , +31d 41m 42.8s) | C | 30 | 16.3 | 193 | 2020-01-11 15:14:06 | MASTER-Tunka | (06h 52m 24.13s , +31d 41m 11.8s) | P| | 30 | 15.4 | 223 | 2020-01-11 15:14:31 | MASTER-Amur | (06h 47m 16.93s , +31d 40m 39.7s) | C | 40 | 16.4 | 248 | 2020-01-11 15:14:55 | MASTER-Tunka | (06h 52m 28.46s , +31d 40m 12.9s) | P| | 40 | 15.4 | 287 | 2020-01-11 15:15:30 | MASTER-Amur | (06h 47m 23.88s , +31d 40m 56.5s) | C | 50 | 16.5 | 313 | 2020-01-11 15:15:55 | MASTER-Tunka | (06h 52m 23.34s , +31d 39m 14.5s) | P| | 50 | 15.5 | 362 | 2020-01-11 15:16:40 | MASTER-Amur | (06h 47m 20.85s , +31d 42m 14.2s) | C | 60 | 14.3 | 392 | 2020-01-11 15:17:05 | MASTER-Tunka | (06h 52m 30.09s , +31d 39m 34.1s) | P| | 70 | 15.4 | 612 | 2020-01-11 15:20:49 | MASTER-Amur | (06h 52m 01.78s , +31d 40m 54.4s) | C | 60 | 16.3 | 642 | 2020-01-11 15:20:49 | MASTER-Tavrida | (07h 00m 40.56s , +31d 38m 28.3s) | C | 120 | 13.1 | 691 | 2020-01-11 15:22:09 | MASTER-Amur | (06h 51m 58.71s , +31d 40m 47.3s) | C | 60 | 16.6 | 792 | 2020-01-11 15:23:10 | MASTER-Tavrida | (07h 00m 37.09s , +31d 37m 27.6s) | C | 140 | 13.5 | 771 | 2020-01-11 15:23:29 | MASTER-Amur | (06h 51m 57.64s , +31d 41m 43.2s) | C | 60 | 16.6 | Filter C is a clear (unfiltred) band. The observation and reduction will continue. The message may be cited.