TITLE: GCN CIRCULAR NUMBER: 24423 SUBJECT: Fermi GRB190507.97 Global MASTER-Net observations report DATE: 19/05/08 02:16:11 GMT FROM: Vladimir Lipunov at Moscow State U/Krylov Obs V. Lipunov, E. Gorbovskoy, V.Kornilov, D.Kuvshinov, N.Tyurina, P.Balanutsa, A.Kuznetsov, V.V.Chazov, D. Vlasenko (Lomonosov Moscow State University, Sternberg Astronomical Institute, Moscow State University) A. Tlatov, V.Senik, A.V. Parhomenko, D. Dormidontov (Kislovodsk Solar Station of the Pulkovo Observatory) K. Ivanov, O. Gres, N.M. Budnev, S. Yazev, O. Chuvalaev, V. Poleshchuk (Irkutsk State University) V. Yurkov, A. Gabovich, Yu. Sergienko (Blagoveschensk Educational State University, Blagoveschensk) R. Podesta, Carlos Lopez and F. Podesta (Observatorio Astronomico Felix Aguilar (OAFA)) Hugo Levato and Carlos Saffe (Instituto de Ciencias Astronomicas, de la Tierra y del Espacio (ICATE)) R. Rebolo, M. Serra, N. Lodieu, G. Israelian, L. Suarez-Andres (The Instituto de Astrofisica de Canarias) D. Buckley, S. Potter, A. Kniazev, M. Kotze (South African Astronomical Observatory) 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 GRB190507.97 (trigger No 578963794, 19h 11m 16.80s , -22d 49m 12.00s, R=1.19) errorbox 581 sec after trigger time at 2019-05-07 23:26:10 UT, with upper limit up to 18.5 mag. The observations began at zenit distance = 71 deg. The sun altitude is -22.2 deg. MASTER-SAAO robotic telescope located in South Africa (South African Astronomical Observatory) started inspect of the Fermi GRB190507.97 errorbox 588 sec after trigger time at 2019-05-07 23:26:17 UT, with upper limit up to 16.2 mag. The observations began at zenit distance = 46 deg. The sun altitude is -71.0 deg. MASTER-IAC robotic telescope located in Spain (IAC Teide Observatory) started inspect of the Fermi GRB190507.97 errorbox 9230 sec after trigger time at 2019-05-08 01:50:19 UT, with upper limit up to 17.7 mag. The observations began at zenit distance = 70 deg. The sun altitude is -43.4 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=1011890 We obtain a following upper limits. Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment _________|_____________________|_____________________|____________________________________|_____|_______|_______|________ 642 | 2019-05-07 23:26:10 | MASTER-Kislovodsk | ( 19h 10m 16.31s , -22d 36m 28.33s) | P- | 120 | 17.4 | 642 | 2019-05-07 23:26:10 | MASTER-Kislovodsk | ( 19h 10m 14.47s , -23d 4m 48.28s) | P| | 120 | 17.6 | 648 | 2019-05-07 23:26:17 | MASTER-SAAO | ( 19h 15m 15.23s , -22d 48m 17.92s) | C | 120 | 14.5 | 813 | 2019-05-07 23:26:17 | MASTER-SAAO | ( 19h 15m 15.23s , -22d 48m 18.00s) | C | 450 | 16.0 | Coadd 801 | 2019-05-07 23:28:35 | MASTER-Kislovodsk | ( 19h 10m 16.56s , -22d 36m 27.82s) | P- | 150 | 17.5 | 801 | 2019-05-07 23:28:35 | MASTER-Kislovodsk | ( 19h 10m 14.84s , -23d 4m 48.14s) | P| | 150 | 17.7 | 812 | 2019-05-07 23:28:46 | MASTER-SAAO | ( 19h 15m 20.28s , -22d 48m 13.65s) | C | 150 | 16.2 | 991 | 2019-05-07 23:31:30 | MASTER-Kislovodsk | ( 19h 10m 16.84s , -22d 36m 25.94s) | P- | 180 | 17.6 | 991 | 2019-05-07 23:31:30 | MASTER-Kislovodsk | ( 19h 10m 15.28s , -23d 4m 46.56s) | P| | 180 | 17.8 | 1009 | 2019-05-07 23:31:48 | MASTER-SAAO | ( 19h 15m 20.48s , -22d 48m 13.68s) | C | 180 | 14.0 | 1196 | 2019-05-07 23:34:55 | MASTER-Kislovodsk | ( 19h 10m 17.16s , -22d 36m 24.46s) | P- | 180 | 17.6 | 1196 | 2019-05-07 23:34:55 | MASTER-Kislovodsk | ( 19h 10m 15.71s , -23d 4m 45.16s) | P| | 180 | 17.9 | 1401 | 2019-05-07 23:38:19 | MASTER-Kislovodsk | ( 19h 10m 17.52s , -22d 36m 22.59s) | P- | 180 | 17.6 | 1401 | 2019-05-07 23:38:19 | MASTER-Kislovodsk | ( 19h 10m 16.11s , -23d 4m 42.50s) | P| | 180 | 17.9 | 1607 | 2019-05-07 23:41:45 | MASTER-Kislovodsk | ( 19h 10m 16.51s , -23d 4m 40.03s) | P| | 180 | 17.9 | 2046 | 2019-05-07 23:50:05 | MASTER-Kislovodsk | ( 19h 10m 32.16s , -21d 46m 27.79s) | C | 60 | 17.9 | 2046 | 2019-05-07 23:50:05 | MASTER-Kislovodsk | ( 19h 19m 24.98s , -22d 14m 39.16s) | C | 60 | 18.1 | 2141 | 2019-05-07 23:51:39 | MASTER-Kislovodsk | ( 19h 10m 11.70s , -23d 46m 44.82s) | C | 60 | 17.9 | 2141 | 2019-05-07 23:51:39 | MASTER-Kislovodsk | ( 19h 19m 11.60s , -24d 14m 59.90s) | C | 60 | 18.5 | 2232 | 2019-05-07 23:53:11 | MASTER-Kislovodsk | ( 19h 2m 13.39s , -22d 14m 43.49s) | C | 60 | 18.1 | 2318 | 2019-05-07 23:54:37 | MASTER-Kislovodsk | ( 19h 1m 44.00s , -24d 14m 21.74s) | C | 60 | 17.9 | 2415 | 2019-05-07 23:56:13 | MASTER-Kislovodsk | ( 19h 10m 32.85s , -21d 46m 26.89s) | C | 60 | 18.0 | 2415 | 2019-05-07 23:56:13 | MASTER-Kislovodsk | ( 19h 19m 25.63s , -22d 14m 37.28s) | C | 60 | 18.0 | 2501 | 2019-05-07 23:57:40 | MASTER-Kislovodsk | ( 19h 10m 12.38s , -23d 46m 42.34s) | C | 60 | 17.9 | 2501 | 2019-05-07 23:57:40 | MASTER-Kislovodsk | ( 19h 19m 12.38s , -24d 14m 55.94s) | C | 60 | 18.5 | 2592 | 2019-05-07 23:59:11 | MASTER-Kislovodsk | ( 19h 2m 14.16s , -22d 14m 39.20s) | C | 60 | 18.1 | 2687 | 2019-05-08 00:00:46 | MASTER-Kislovodsk | ( 19h 1m 44.85s , -24d 14m 17.30s) | C | 60 | 17.9 | 2778 | 2019-05-08 00:02:17 | MASTER-Kislovodsk | ( 19h 12m 16.54s , -19d 46m 28.21s) | C | 60 | 18.0 | 3813 | 2019-05-08 00:19:32 | MASTER-Kislovodsk | ( 19h 12m 23.12s , -19d 46m 43.91s) | C | 60 | 17.5 | 3902 | 2019-05-08 00:21:00 | MASTER-Kislovodsk | ( 19h 12m 23.27s , -19d 46m 24.42s) | C | 60 | 17.7 | 3990 | 2019-05-08 00:22:28 | MASTER-Kislovodsk | ( 19h 11m 21.53s , -25d 46m 10.78s) | C | 60 | 17.6 | 4089 | 2019-05-08 00:24:08 | MASTER-Kislovodsk | ( 19h 4m 05.56s , -20d 14m 58.17s) | C | 60 | 17.9 | 4362 | 2019-05-08 00:28:41 | MASTER-Kislovodsk | ( 19h 11m 22.27s , -25d 46m 12.06s) | C | 60 | 17.1 | 4457 | 2019-05-08 00:30:15 | MASTER-Kislovodsk | ( 19h 4m 06.16s , -20d 14m 57.44s) | C | 60 | 18.0 | 4549 | 2019-05-08 00:31:47 | MASTER-Kislovodsk | ( 19h 4m 08.15s , -20d 14m 56.77s) | C | 60 | 17.9 | 9261 | 2019-05-08 01:50:19 | MASTER-IAC | ( 19h 10m 18.10s , -21d 58m 01.00s) | C | 60 | 17.7 | 9261 | 2019-05-08 01:50:19 | MASTER-IAC | ( 19h 19m 04.89s , -22d 1m 07.21s) | C | 60 | 17.5 | 9596 | 2019-05-08 01:55:54 | MASTER-IAC | ( 19h 10m 16.72s , -21d 58m 01.14s) | C | 60 | 17.4 | 9596 | 2019-05-08 01:55:54 | MASTER-IAC | ( 19h 19m 03.73s , -22d 1m 07.01s) | C | 60 | 17.4 | 9715 | 2019-05-08 01:57:54 | MASTER-IAC | ( 19h 19m 05.53s , -22d 1m 08.14s) | C | 60 | 17.5 | Filter C is a clear (unfiltred) band. The observation and reduction will continue. The message may be cited.