TITLE: GCN CIRCULAR NUMBER: 24396 SUBJECT: LIGO/Virgo S190503bf Global MASTER-Net observations report DATE: 19/05/05 08:34:34 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-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 LIGO/Virgo S190503bf errorbox 82590 sec after trigger time at 2019-05-04 17:50:34 UT, with upper limit up to 17.1 mag. The observations began at zenit distance = 137 deg. The sun altitude is -24.0 deg. MASTER-IAC robotic telescope located in Spain (IAC Teide Observatory) started inspect of the LIGO/Virgo S190503bf errorbox 1 days 6266 sec after trigger time at 2019-05-04 20:38:30 UT, with upper limit up to 18.0 mag. Observations started at twilight. The observations began at zenit distance = 144 deg. The sun altitude is -13.0 deg. MASTER-OAFA robotic telescope located in Argentina (OAFA observatory of San Juan National University) started inspect of the LIGO/Virgo S190503bf errorbox 1 days 13671 sec after trigger time at 2019-05-04 22:41:55 UT, with upper limit up to 17.9 mag. Observations started at twilight. The observations began at zenit distance = 127 deg. The sun altitude is -10.3 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=10299 We obtain a following upper limits. Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment _________|_____________________|_____________________|____________________________________|_____|_______|_______|________ 82680 | 2019-05-04 17:50:34 | MASTER-SAAO | ( 6h 40m 57.76s , -53d 55m 35.74s) | C | 180 | 14.4 | 82896 | 2019-05-04 17:54:10 | MASTER-SAAO | ( 6h 24m 00.16s , -51d 56m 39.11s) | C | 180 | 15.3 | 83114 | 2019-05-04 17:57:48 | MASTER-SAAO | ( 6h 15m 02.74s , -53d 56m 50.00s) | C | 180 | 15.6 | 84897 | 2019-05-04 18:27:31 | MASTER-SAAO | ( 4h 23m 21.06s , -37d 30m 09.15s) | C | 180 | 14.9 | 85108 | 2019-05-04 18:31:02 | MASTER-SAAO | ( 4h 23m 20.80s , -37d 30m 09.15s) | C | 180 | 14.3 | 88678 | 2019-05-04 19:30:31 | MASTER-SAAO | ( 6h 36m 26.20s , -51d 58m 31.86s) | C | 180 | 13.3 | 88926 | 2019-05-04 19:34:40 | MASTER-SAAO | ( 6h 14m 54.66s , -53d 59m 26.60s) | C | 180 | 15.7 | 89203 | 2019-05-04 19:39:17 | MASTER-SAAO | ( 6h 14m 21.48s , -53d 59m 51.62s) | C | 180 | 17.1 | 89574 | 2019-05-04 19:45:27 | MASTER-SAAO | ( 6h 27m 28.11s , -53d 59m 20.02s) | C | 180 | 15.5 | 90039 | 2019-05-04 19:53:12 | MASTER-SAAO | ( 5h 57m 53.55s , -52d 0m 37.63s) | C | 180 | 12.5 | 90681 | 2019-05-04 20:03:55 | MASTER-SAAO | ( 6h 27m 58.55s , -53d 59m 43.52s) | C | 180 | 13.5 | 92449 | 2019-05-04 20:33:23 | MASTER-SAAO | ( 6h 34m 02.23s , -55d 59m 38.19s) | C | 180 | 12.4 | 92666 | 2019-05-04 20:37:00 | MASTER-SAAO | ( 6h 48m 21.17s , -55d 59m 23.01s) | C | 180 | 14.0 | 92757 | 2019-05-04 20:38:30 | MASTER-IAC | ( 5h 32m 47.20s , -14d 1m 55.03s) | C | 180 | 16.5 | 92980 | 2019-05-04 20:42:14 | MASTER-IAC | ( 5h 35m 55.25s , -16d 1m 57.68s) | C | 180 | 16.9 | 93207 | 2019-05-04 20:46:01 | MASTER-IAC | ( 5h 35m 55.41s , -16d 2m 23.22s) | C | 180 | 17.3 | 93436 | 2019-05-04 20:49:50 | MASTER-IAC | ( 5h 32m 47.92s , -14d 2m 29.36s) | C | 180 | 16.5 | 93660 | 2019-05-04 20:53:33 | MASTER-IAC | ( 5h 36m 03.47s , -16d 1m 13.51s) | C | 180 | 15.8 | 93788 | 2019-05-04 20:55:42 | MASTER-SAAO | ( 6h 47m 52.16s , -55d 59m 44.47s) | C | 180 | 16.9 | 95830 | 2019-05-04 21:29:44 | MASTER-IAC | ( 8h 31m 42.74s , -45d 56m 14.33s) | C | 180 | 17.7 | 96010 | 2019-05-04 21:29:44 | MASTER-IAC | ( 8h 31m 42.75s , -45d 56m 14.09s) | C | 540 | 18.0 | Coadd 95830 | 2019-05-04 21:29:44 | MASTER-IAC | ( 8h 19m 57.11s , -45d 54m 07.94s) | C | 180 | 16.9 | 96055 | 2019-05-04 21:33:29 | MASTER-IAC | ( 8h 19m 56.70s , -45d 54m 39.34s) | C | 180 | 17.0 | 96055 | 2019-05-04 21:33:29 | MASTER-IAC | ( 8h 31m 42.69s , -45d 56m 40.68s) | C | 180 | 17.8 | 96572 | 2019-05-04 21:42:06 | MASTER-IAC | ( 8h 31m 43.70s , -45d 56m 28.07s) | C | 180 | 17.7 | 100161 | 2019-05-04 22:41:55 | MASTER-OAFA | ( 4h 19m 04.60s , -38d 2m 11.68s) | C | 180 | 12.7 | 100428 | 2019-05-04 22:46:21 | MASTER-OAFA | ( 4h 19m 03.23s , -38d 2m 10.99s) | C | 180 | 12.5 | 100699 | 2019-05-04 22:50:52 | MASTER-OAFA | ( 6h 41m 54.52s , -53d 57m 40.36s) | C | 180 | 15.7 | 100984 | 2019-05-04 22:55:38 | MASTER-OAFA | ( 4h 19m 08.30s , -38d 3m 12.29s) | C | 180 | 15.9 | 101208 | 2019-05-04 22:59:22 | MASTER-OAFA | ( 4h 29m 16.22s , -38d 2m 49.46s) | C | 180 | 16.4 | 101443 | 2019-05-04 23:03:17 | MASTER-OAFA | ( 6h 42m 04.11s , -53d 58m 42.67s) | C | 180 | 17.0 | 101669 | 2019-05-04 23:07:02 | MASTER-OAFA | ( 6h 55m 41.32s , -53d 58m 23.22s) | C | 180 | 17.3 | 101899 | 2019-05-04 23:10:52 | MASTER-OAFA | ( 4h 29m 18.16s , -38d 2m 15.91s) | C | 180 | 17.3 | 102134 | 2019-05-04 23:14:47 | MASTER-OAFA | ( 6h 23m 51.01s , -51d 59m 11.64s) | C | 180 | 17.4 | 102359 | 2019-05-04 23:18:33 | MASTER-OAFA | ( 6h 55m 41.42s , -53d 58m 17.36s) | C | 180 | 17.7 | 102586 | 2019-05-04 23:22:20 | MASTER-OAFA | ( 6h 14m 51.01s , -53d 59m 08.46s) | C | 180 | 13.6 | 102817 | 2019-05-04 23:26:10 | MASTER-OAFA | ( 6h 23m 51.00s , -51d 59m 13.60s) | C | 180 | 16.8 | 103041 | 2019-05-04 23:29:55 | MASTER-OAFA | ( 6h 36m 51.72s , -51d 58m 51.37s) | C | 180 | 17.3 | 103712 | 2019-05-04 23:41:06 | MASTER-OAFA | ( 6h 36m 50.32s , -51d 58m 50.25s) | C | 180 | 13.1 | 106897 | 2019-05-05 00:34:10 | MASTER-OAFA | ( 6h 5m 24.81s , -55d 59m 22.82s) | C | 180 | 13.9 | 108021 | 2019-05-05 00:52:55 | MASTER-OAFA | ( 6h 17m 02.59s , -47d 59m 23.90s) | C | 180 | 14.4 | 108700 | 2019-05-05 01:04:14 | MASTER-OAFA | ( 6h 17m 00.99s , -47d 59m 22.31s) | C | 180 | 15.1 | 108923 | 2019-05-05 01:07:57 | MASTER-OAFA | ( 6h 28m 59.65s , -47d 59m 02.52s) | C | 180 | 15.4 | 109605 | 2019-05-05 01:19:19 | MASTER-OAFA | ( 6h 28m 59.25s , -47d 59m 02.07s) | C | 180 | 15.3 | 111409 | 2019-05-05 01:49:23 | MASTER-OAFA | ( 5h 55m 06.24s , -49d 59m 38.79s) | C | 180 | 12.2 | 113328 | 2019-05-05 02:21:21 | MASTER-OAFA | ( 6h 49m 45.25s , -51d 58m 07.67s) | C | 180 | 15.1 | 113826 | 2019-05-05 02:29:39 | MASTER-OAFA | ( 6h 25m 33.42s , -57d 58m 45.37s) | C | 180 | 16.0 | 114140 | 2019-05-05 02:34:53 | MASTER-OAFA | ( 6h 49m 46.09s , -51d 58m 30.61s) | C | 180 | 14.6 | 114397 | 2019-05-05 02:39:11 | MASTER-OAFA | ( 7h 2m 45.33s , -51d 57m 49.33s) | C | 180 | 14.4 | 114663 | 2019-05-05 02:43:36 | MASTER-OAFA | ( 6h 25m 31.18s , -57d 58m 44.52s) | C | 180 | 14.6 | 114921 | 2019-05-05 02:47:54 | MASTER-OAFA | ( 6h 40m 36.92s , -57d 58m 40.93s) | C | 180 | 16.4 | 115194 | 2019-05-05 02:52:27 | MASTER-OAFA | ( 7h 2m 44.63s , -51d 57m 48.92s) | C | 180 | 15.4 | 115696 | 2019-05-05 03:00:49 | MASTER-OAFA | ( 6h 40m 37.49s , -57d 58m 37.60s) | C | 180 | 16.6 | 115924 | 2019-05-05 03:04:37 | MASTER-OAFA | ( 6h 26m 04.92s , -45d 58m 44.23s) | C | 180 | 16.6 | 116149 | 2019-05-05 03:08:22 | MASTER-OAFA | ( 6h 40m 50.29s , -47d 58m 40.42s) | C | 180 | 14.9 | 116374 | 2019-05-05 03:12:07 | MASTER-OAFA | ( 6h 52m 48.85s , -47d 58m 21.77s) | C | 180 | 15.5 | 116599 | 2019-05-05 03:15:52 | MASTER-OAFA | ( 6h 26m 05.53s , -45d 58m 40.56s) | C | 180 | 16.7 | 116823 | 2019-05-05 03:19:36 | MASTER-OAFA | ( 6h 37m 35.40s , -45d 58m 23.41s) | C | 180 | 16.7 | 117046 | 2019-05-05 03:23:19 | MASTER-OAFA | ( 6h 52m 46.96s , -47d 58m 19.88s) | C | 180 | 16.6 | 117277 | 2019-05-05 03:27:10 | MASTER-OAFA | ( 8h 3m 35.65s , -53d 56m 11.58s) | C | 180 | 17.9 | 117505 | 2019-05-05 03:30:59 | MASTER-OAFA | ( 6h 37m 34.68s , -45d 58m 21.28s) | C | 180 | 16.9 | 117734 | 2019-05-05 03:34:47 | MASTER-OAFA | ( 7h 41m 41.11s , -51d 57m 04.90s) | C | 180 | 15.9 | 117914 | 2019-05-05 03:34:47 | MASTER-OAFA | ( 7h 41m 41.10s , -51d 57m 04.93s) | C | 540 | 16.5 | Coadd 117957 | 2019-05-05 03:38:31 | MASTER-OAFA | ( 8h 3m 35.03s , -53d 56m 13.48s) | C | 180 | 17.3 | 118181 | 2019-05-05 03:42:14 | MASTER-OAFA | ( 8h 17m 09.35s , -53d 55m 55.49s) | C | 180 | 17.4 | 118406 | 2019-05-05 03:45:59 | MASTER-OAFA | ( 7h 41m 39.41s , -51d 57m 06.14s) | C | 180 | 16.0 | 118776 | 2019-05-05 03:52:09 | MASTER-OAFA | ( 7h 41m 38.25s , -51d 57m 06.29s) | C | 180 | 16.0 | 119157 | 2019-05-05 03:58:31 | MASTER-OAFA | ( 8h 17m 09.88s , -53d 55m 53.94s) | C | 180 | 17.0 | 119604 | 2019-05-05 04:05:58 | MASTER-OAFA | ( 8h 7m 37.82s , -51d 56m 28.54s) | C | 180 | 13.6 | 119832 | 2019-05-05 04:09:45 | MASTER-OAFA | ( 8h 30m 43.79s , -53d 55m 37.38s) | C | 180 | 16.1 | 120063 | 2019-05-05 04:13:36 | MASTER-OAFA | ( 6h 55m 38.68s , -57d 58m 07.89s) | C | 180 | 16.5 | 120289 | 2019-05-05 04:17:23 | MASTER-OAFA | ( 8h 7m 37.20s , -51d 56m 10.51s) | C | 180 | 15.8 | 120514 | 2019-05-05 04:21:08 | MASTER-OAFA | ( 8h 20m 34.77s , -51d 55m 53.62s) | C | 180 | 14.6 | 120739 | 2019-05-05 04:24:52 | MASTER-OAFA | ( 8h 30m 43.36s , -53d 55m 59.02s) | C | 180 | 16.5 | 120962 | 2019-05-05 04:28:35 | MASTER-OAFA | ( 8h 44m 20.26s , -53d 55m 43.28s) | C | 180 | 16.7 | 121444 | 2019-05-05 04:36:38 | MASTER-OAFA | ( 7h 10m 43.96s , -57d 57m 47.99s) | C | 180 | 17.1 | 121676 | 2019-05-05 04:40:30 | MASTER-OAFA | ( 8h 20m 34.81s , -51d 56m 29.25s) | C | 180 | 15.8 | 121900 | 2019-05-05 04:44:13 | MASTER-OAFA | ( 8h 44m 20.02s , -53d 55m 56.71s) | C | 180 | 16.3 | 122428 | 2019-05-05 04:53:02 | MASTER-OAFA | ( 7h 47m 01.50s , -49d 56m 54.98s) | C | 180 | 16.6 | 122911 | 2019-05-05 05:01:04 | MASTER-OAFA | ( 8h 33m 35.42s , -51d 56m 21.10s) | C | 180 | 16.7 | 123091 | 2019-05-05 05:01:04 | MASTER-OAFA | ( 8h 33m 35.42s , -51d 56m 21.17s) | C | 540 | 17.1 | Coadd 123485 | 2019-05-05 05:10:39 | MASTER-OAFA | ( 7h 59m 27.30s , -49d 56m 57.11s) | C | 180 | 16.8 | 123717 | 2019-05-05 05:14:31 | MASTER-OAFA | ( 8h 33m 33.96s , -51d 55m 47.50s) | C | 180 | 16.6 | 123942 | 2019-05-05 05:18:15 | MASTER-OAFA | ( 8h 33m 32.16s , -51d 55m 43.84s) | C | 180 | 16.7 | 124167 | 2019-05-05 05:22:01 | MASTER-OAFA | ( 8h 46m 30.68s , -51d 55m 47.10s) | C | 180 | 16.5 | 124347 | 2019-05-05 05:22:01 | MASTER-OAFA | ( 8h 46m 30.69s , -51d 55m 47.08s) | C | 540 | 16.9 | Coadd 124747 | 2019-05-05 05:31:40 | MASTER-OAFA | ( 8h 28m 14.52s , -55d 55m 59.98s) | C | 180 | 16.7 | 124976 | 2019-05-05 05:35:30 | MASTER-OAFA | ( 8h 46m 30.36s , -51d 55m 33.03s) | C | 180 | 16.3 | 125201 | 2019-05-05 05:39:15 | MASTER-OAFA | ( 8h 46m 29.67s , -51d 55m 48.11s) | C | 180 | 16.6 | 125762 | 2019-05-05 05:48:35 | MASTER-OAFA | ( 8h 28m 12.10s , -55d 55m 54.84s) | C | 180 | 17.1 | 126289 | 2019-05-05 05:57:23 | MASTER-OAFA | ( 8h 42m 30.39s , -55d 56m 01.15s) | C | 180 | 17.0 | Filter C is a clear (unfiltred) band. The observation and reduction will continue. The message may be cited.