TITLE: GCN CIRCULAR NUMBER: 24770 SUBJECT: Fermi trigger No 581645543 Global MASTER-Net observations report DATE: 19/06/08 01:31:20 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-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 GRB190608.01 (trigger No 581645543, 15h 2m 57.60s , -31d 25m 12.00s, R=2.21) errorbox 208 sec after trigger time at 2019-06-08 00:15:46 UT, with upper limit up to 19.7 mag. The observations began at zenit distance = 46 deg. The sun altitude is -66.4 deg. MASTER-OAFA robotic telescope located in Argentina (OAFA observatory of San Juan National University) started inspect of the Fermi GRB190608.01 errorbox 215 sec after trigger time at 2019-06-08 00:15:53 UT, with upper limit up to 19.1 mag. The observations began at zenit distance = 30 deg. The sun altitude is -32.7 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=1042328 We obtain a following upper limits. Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment _________|_____________________|_____________________|____________________________________|_____|_______|_______|________ 228 | 2019-06-08 00:15:46 | MASTER-SAAO | ( 14h 49m 32.62s , -30d 38m 35.34s) | C | 40 | 19.1 | 293 | 2019-06-08 00:15:46 | MASTER-SAAO | ( 14h 49m 32.60s , -30d 38m 35.22s) | C | 170 | 19.5 | Coadd 236 | 2019-06-08 00:15:53 | MASTER-OAFA | ( 14h 52m 50.81s , -30d 40m 25.92s) | C | 40 | 18.0 | 306 | 2019-06-08 00:15:53 | MASTER-OAFA | ( 14h 52m 50.80s , -30d 40m 25.90s) | C | 180 | 18.8 | Coadd 307 | 2019-06-08 00:16:55 | MASTER-SAAO | ( 14h 49m 32.63s , -30d 38m 36.32s) | C | 60 | 19.2 | 324 | 2019-06-08 00:17:11 | MASTER-OAFA | ( 14h 52m 50.96s , -30d 40m 26.95s) | C | 60 | 18.2 | 403 | 2019-06-08 00:18:25 | MASTER-SAAO | ( 14h 49m 32.63s , -30d 38m 38.00s) | C | 70 | 19.3 | 434 | 2019-06-08 00:18:52 | MASTER-OAFA | ( 14h 52m 51.12s , -30d 40m 28.27s) | C | 80 | 18.4 | 512 | 2019-06-08 00:20:05 | MASTER-SAAO | ( 14h 49m 32.62s , -30d 38m 40.35s) | C | 90 | 19.3 | 622 | 2019-06-08 00:21:44 | MASTER-OAFA | ( 15h 1m 33.89s , -31d 20m 15.78s) | C | 110 | 18.5 | 782 | 2019-06-08 00:21:44 | MASTER-OAFA | ( 15h 1m 33.89s , -31d 20m 15.77s) | C | 430 | 19.1 | Coadd 629 | 2019-06-08 00:21:52 | MASTER-SAAO | ( 14h 58m 13.38s , -31d 18m 13.61s) | C | 110 | 19.3 | 789 | 2019-06-08 00:21:52 | MASTER-SAAO | ( 14h 58m 13.38s , -31d 18m 13.62s) | C | 430 | 19.5 | Coadd 784 | 2019-06-08 00:24:11 | MASTER-SAAO | ( 14h 58m 13.35s , -31d 18m 17.80s) | C | 140 | 19.3 | 788 | 2019-06-08 00:24:15 | MASTER-OAFA | ( 15h 1m 33.90s , -31d 20m 16.55s) | C | 140 | 18.6 | 974 | 2019-06-08 00:27:02 | MASTER-SAAO | ( 14h 58m 13.29s , -31d 18m 23.08s) | C | 180 | 19.3 | 986 | 2019-06-08 00:27:14 | MASTER-OAFA | ( 15h 1m 33.93s , -31d 20m 17.45s) | C | 180 | 18.8 | 1184 | 2019-06-08 00:30:31 | MASTER-SAAO | ( 14h 58m 13.23s , -31d 18m 28.99s) | C | 180 | 19.3 | 1208 | 2019-06-08 00:30:55 | MASTER-OAFA | ( 15h 1m 33.85s , -31d 20m 18.07s) | C | 180 | 18.8 | 1595 | 2019-06-08 00:38:22 | MASTER-SAAO | ( 15h 0m 36.20s , -31d 53m 42.11s) | C | 60 | 19.1 | 1690 | 2019-06-08 00:39:58 | MASTER-SAAO | ( 15h 0m 24.19s , -29d 53m 24.90s) | C | 60 | 18.9 | 1784 | 2019-06-08 00:41:32 | MASTER-SAAO | ( 15h 1m 57.18s , -33d 53m 43.26s) | C | 60 | 19.3 | 1879 | 2019-06-08 00:43:06 | MASTER-SAAO | ( 15h 1m 15.85s , -27d 53m 30.03s) | C | 60 | 19.3 | 1973 | 2019-06-08 00:44:40 | MASTER-SAAO | ( 15h 0m 36.12s , -31d 53m 29.49s) | C | 60 | 19.2 | 2068 | 2019-06-08 00:46:15 | MASTER-SAAO | ( 15h 10m 01.68s , -31d 53m 47.87s) | C | 60 | 19.2 | 2161 | 2019-06-08 00:47:48 | MASTER-SAAO | ( 15h 0m 23.77s , -29d 53m 56.47s) | C | 60 | 19.2 | 2256 | 2019-06-08 00:49:23 | MASTER-SAAO | ( 15h 9m 37.85s , -29d 53m 34.45s) | C | 60 | 19.2 | 2351 | 2019-06-08 00:50:58 | MASTER-SAAO | ( 15h 1m 57.11s , -33d 53m 37.79s) | C | 60 | 19.3 | 2444 | 2019-06-08 00:52:32 | MASTER-SAAO | ( 15h 11m 35.60s , -33d 53m 56.41s) | C | 60 | 19.4 | 2539 | 2019-06-08 00:54:06 | MASTER-SAAO | ( 15h 1m 15.78s , -27d 54m 07.67s) | C | 60 | 19.2 | 2632 | 2019-06-08 00:55:39 | MASTER-SAAO | ( 15h 10m 19.07s , -27d 53m 45.96s) | C | 60 | 19.3 | 2727 | 2019-06-08 00:57:15 | MASTER-SAAO | ( 15h 10m 01.61s , -31d 53m 45.86s) | C | 60 | 19.2 | 2820 | 2019-06-08 00:58:48 | MASTER-SAAO | ( 15h 9m 36.71s , -29d 54m 10.43s) | C | 60 | 19.2 | 2916 | 2019-06-08 01:00:23 | MASTER-SAAO | ( 15h 11m 36.98s , -33d 54m 09.64s) | C | 60 | 19.4 | 3010 | 2019-06-08 01:01:58 | MASTER-SAAO | ( 15h 10m 19.04s , -27d 53m 56.71s) | C | 60 | 19.3 | 3329 | 2019-06-08 01:07:17 | MASTER-SAAO | ( 15h 19m 28.58s , -31d 53m 59.02s) | C | 60 | 19.7 | 3526 | 2019-06-08 01:10:34 | MASTER-SAAO | ( 14h 51m 09.82s , -31d 54m 35.20s) | C | 60 | 19.1 | Filter C is a clear (unfiltred) band. The observation and reduction will continue. The message may be cited.