TITLE: GCN CIRCULAR NUMBER: 24576 SUBJECT: LIGO/Virgo S190517h Global MASTER-Net observations report DATE: 19/05/17 10:26:39 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-OAFA robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in Argentina (OAFA observatory of San Juan National University) started inspect of the LIGO/Virgo S190517h errorbox 4170 sec after trigger time at 2019-05-17 07:00:31 UT, with upper limit up to 17.4 mag. The observations began at zenit distance = 89 deg. The sun altitude is -54.4 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/ligo_1.php?id=10399 We obtain a following upper limits. Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment _________|_____________________|_____________________|____________________________________|_____|_______|_______|________ 4261 | 2019-05-17 07:00:31 | MASTER-OAFA | ( 15h 14m 28.08s , -47d 28m 08.13s) | C | 180 | 16.8 | 4441 | 2019-05-17 07:00:31 | MASTER-OAFA | ( 15h 14m 28.07s , -47d 28m 08.11s) | C | 540 | 17.4 | Coadd 4481 | 2019-05-17 07:04:11 | MASTER-OAFA | ( 15h 14m 27.72s , -47d 28m 09.36s) | C | 180 | 17.0 | 4701 | 2019-05-17 07:07:52 | MASTER-OAFA | ( 15h 14m 27.53s , -47d 28m 09.79s) | C | 180 | 17.0 | 4922 | 2019-05-17 07:11:33 | MASTER-OAFA | ( 15h 14m 27.39s , -47d 28m 10.72s) | C | 180 | 16.9 | 6740 | 2019-05-17 07:41:51 | MASTER-OAFA | ( 14h 48m 20.72s , -49d 54m 38.81s) | C | 180 | 16.9 | 6968 | 2019-05-17 07:45:38 | MASTER-OAFA | ( 15h 13m 09.55s , -49d 54m 41.18s) | C | 180 | 16.9 | 7196 | 2019-05-17 07:49:26 | MASTER-OAFA | ( 15h 24m 59.77s , -47d 55m 15.79s) | C | 180 | 16.9 | 7422 | 2019-05-17 07:53:12 | MASTER-OAFA | ( 14h 48m 20.54s , -49d 54m 20.37s) | C | 180 | 16.9 | 7651 | 2019-05-17 07:57:02 | MASTER-OAFA | ( 15h 0m 44.50s , -49d 54m 30.72s) | C | 180 | 16.1 | 7874 | 2019-05-17 08:00:45 | MASTER-OAFA | ( 15h 13m 09.41s , -49d 55m 04.42s) | C | 180 | 16.9 | 8098 | 2019-05-17 08:04:29 | MASTER-OAFA | ( 15h 25m 36.21s , -49d 55m 18.67s) | C | 180 | 17.0 | 8327 | 2019-05-17 08:08:17 | MASTER-OAFA | ( 15h 25m 00.05s , -47d 55m 01.19s) | C | 180 | 16.8 | 8552 | 2019-05-17 08:12:03 | MASTER-OAFA | ( 15h 36m 54.64s , -47d 55m 15.41s) | C | 180 | 16.7 | 8777 | 2019-05-17 08:15:48 | MASTER-OAFA | ( 15h 0m 45.15s , -49d 54m 58.14s) | C | 180 | 17.0 | 9003 | 2019-05-17 08:19:33 | MASTER-OAFA | ( 15h 25m 36.87s , -49d 55m 22.76s) | C | 180 | 17.1 | 9226 | 2019-05-17 08:23:17 | MASTER-OAFA | ( 15h 36m 56.49s , -47d 55m 18.15s) | C | 180 | 17.1 | 9456 | 2019-05-17 08:27:06 | MASTER-OAFA | ( 15h 14m 01.25s , -45d 55m 15.14s) | C | 180 | 17.0 | 9683 | 2019-05-17 08:30:53 | MASTER-OAFA | ( 15h 1m 09.15s , -47d 54m 41.76s) | C | 180 | 17.2 | 9908 | 2019-05-17 08:34:39 | MASTER-OAFA | ( 15h 38m 01.47s , -49d 55m 38.67s) | C | 180 | 17.1 | 10133 | 2019-05-17 08:38:23 | MASTER-OAFA | ( 15h 14m 02.68s , -45d 55m 16.36s) | C | 180 | 17.2 | 10357 | 2019-05-17 08:42:07 | MASTER-OAFA | ( 15h 25m 32.78s , -45d 55m 07.66s) | C | 180 | 16.8 | 10581 | 2019-05-17 08:45:52 | MASTER-OAFA | ( 15h 1m 08.79s , -47d 54m 43.28s) | C | 180 | 16.8 | 10806 | 2019-05-17 08:49:37 | MASTER-OAFA | ( 15h 13m 04.55s , -47d 55m 15.01s) | C | 180 | 16.1 | 11031 | 2019-05-17 08:53:22 | MASTER-OAFA | ( 15h 38m 03.43s , -49d 55m 41.57s) | C | 180 | 16.9 | 11258 | 2019-05-17 08:57:08 | MASTER-OAFA | ( 15h 50m 29.26s , -49d 55m 37.66s) | C | 180 | 17.4 | 11438 | 2019-05-17 08:57:08 | MASTER-OAFA | ( 15h 50m 29.29s , -49d 55m 37.72s) | C | 540 | 17.2 | Coadd 11486 | 2019-05-17 09:00:56 | MASTER-OAFA | ( 15h 25m 32.58s , -45d 55m 14.31s) | C | 180 | 16.6 | 11735 | 2019-05-17 09:05:05 | MASTER-OAFA | ( 15h 13m 10.46s , -47d 56m 37.59s) | C | 180 | 16.6 | 11960 | 2019-05-17 09:08:50 | MASTER-OAFA | ( 15h 50m 36.46s , -49d 57m 26.48s) | C | 180 | 17.3 | 12188 | 2019-05-17 09:12:38 | MASTER-OAFA | ( 15h 50m 36.09s , -49d 57m 03.51s) | C | 180 | 17.3 | 12414 | 2019-05-17 09:16:24 | MASTER-OAFA | ( 15h 4m 58.03s , -43d 56m 18.42s) | C | 180 | 17.1 | 12645 | 2019-05-17 09:20:15 | MASTER-OAFA | ( 15h 37m 08.48s , -45d 56m 39.84s) | C | 180 | 17.0 | 12870 | 2019-05-17 09:24:00 | MASTER-OAFA | ( 14h 51m 04.73s , -45d 55m 58.32s) | C | 180 | 17.3 | 13093 | 2019-05-17 09:27:44 | MASTER-OAFA | ( 15h 4m 58.43s , -43d 56m 16.89s) | C | 180 | 17.3 | 13322 | 2019-05-17 09:31:32 | MASTER-OAFA | ( 15h 16m 05.35s , -43d 56m 11.57s) | C | 180 | 17.0 | 13551 | 2019-05-17 09:35:21 | MASTER-OAFA | ( 15h 37m 06.19s , -45d 56m 38.86s) | C | 180 | 16.9 | 13773 | 2019-05-17 09:39:04 | MASTER-OAFA | ( 15h 48m 36.85s , -45d 57m 16.16s) | C | 180 | 17.2 | 13999 | 2019-05-17 09:42:49 | MASTER-OAFA | ( 14h 51m 05.07s , -45d 55m 54.19s) | C | 180 | 17.1 | 14222 | 2019-05-17 09:46:33 | MASTER-OAFA | ( 15h 2m 35.93s , -45d 55m 50.52s) | C | 180 | 17.4 | 14446 | 2019-05-17 09:50:16 | MASTER-OAFA | ( 15h 2m 34.29s , -45d 55m 50.41s) | C | 180 | 17.4 | 14671 | 2019-05-17 09:54:02 | MASTER-OAFA | ( 15h 16m 02.79s , -43d 56m 28.14s) | C | 180 | 17.2 | 14896 | 2019-05-17 09:57:46 | MASTER-OAFA | ( 15h 48m 37.65s , -45d 57m 16.20s) | C | 180 | 17.2 | 15118 | 2019-05-17 10:01:28 | MASTER-OAFA | ( 15h 48m 37.56s , -45d 56m 55.05s) | C | 180 | 17.1 | 15345 | 2019-05-17 10:05:15 | MASTER-OAFA | ( 15h 2m 33.40s , -45d 55m 46.66s) | C | 180 | 17.3 | Filter C is a clear (unfiltred) band. The observation and reduction will continue. The message may be cited.