TITLE: GCN CIRCULAR NUMBER: 26353 SUBJECT: LIGO/Virgo S191205ah: Global MASTER-Net observations report DATE: 19/12/05 23:04:22 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-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 LIGO/Virgo S191205ah errorbox 60 sec after notice time and 312 sec after trigger time at 2019-12-05 21:57:20 UT, with upper limit up to 19.3 mag. The observations began at zenith distance = 88 deg. The sun altitude is -66.3 deg. The galactic latitude b = -52 deg., longitude l = 89 deg. Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/ligo_1.php?id=10979 We obtain a following upper limits. Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment _________|_____________________|_____________________|____________________________________|_____|_______|_______|________ 342 | 2019-12-05 21:57:20 | MASTER-Kislovodsk | (23h 34m 16.52s , +05d 01m 46.7s) | C | 60 | 15.0 | 1129 | 2019-12-05 22:09:26 | MASTER-Kislovodsk | (10h 52m 38.44s , +04d 06m 43.6s) | C | 180 | 18.6 | 1129 | 2019-12-05 22:09:26 | MASTER-Kislovodsk | (11h 00m 41.65s , +03d 39m 48.8s) | C | 180 | 18.5 | 1342 | 2019-12-05 22:13:00 | MASTER-Kislovodsk | (10h 59m 20.49s , +01d 38m 40.4s) | C | 180 | 19.0 | 1342 | 2019-12-05 22:13:00 | MASTER-Kislovodsk | (10h 51m 18.28s , +02d 05m 46.1s) | C | 180 | 18.7 | 1553 | 2019-12-05 22:16:31 | MASTER-Kislovodsk | (10h 50m 58.70s , +00d 06m 08.5s) | C | 180 | 18.9 | 1553 | 2019-12-05 22:16:31 | MASTER-Kislovodsk | (10h 59m 00.39s , -00d 21m 05.2s) | C | 180 | 19.0 | 1990 | 2019-12-05 22:23:47 | MASTER-Kislovodsk | (10h 52m 35.56s , +04d 06m 20.2s) | C | 180 | 19.1 | 1990 | 2019-12-05 22:23:47 | MASTER-Kislovodsk | (11h 00m 39.70s , +03d 39m 16.3s) | C | 180 | 19.3 | 2200 | 2019-12-05 22:27:18 | MASTER-Kislovodsk | (10h 52m 37.63s , +04d 07m 52.0s) | C | 180 | 19.2 | 2200 | 2019-12-05 22:27:18 | MASTER-Kislovodsk | (11h 00m 42.08s , +03d 40m 47.6s) | C | 180 | 19.2 | 2410 | 2019-12-05 22:30:48 | MASTER-Kislovodsk | (10h 51m 19.30s , +02d 07m 10.1s) | C | 180 | 19.1 | 2411 | 2019-12-05 22:30:48 | MASTER-Kislovodsk | (10h 59m 22.67s , +01d 40m 03.1s) | C | 180 | 19.2 | 2620 | 2019-12-05 22:34:18 | MASTER-Kislovodsk | (10h 50m 52.52s , +00d 08m 17.5s) | C | 180 | 19.1 | 2620 | 2019-12-05 22:34:18 | MASTER-Kislovodsk | (10h 58m 55.31s , -00d 18m 52.5s) | C | 180 | 19.2 | 2835 | 2019-12-05 22:37:53 | MASTER-Kislovodsk | (11h 06m 59.00s , +00d 07m 00.7s) | C | 180 | 18.9 | 2835 | 2019-12-05 22:37:53 | MASTER-Kislovodsk | (11h 15m 00.93s , -00d 20m 18.9s) | C | 180 | 18.8 | 3044 | 2019-12-05 22:41:21 | MASTER-Kislovodsk | (11h 06m 52.81s , +00d 06m 05.8s) | C | 180 | 19.0 | 3044 | 2019-12-05 22:41:21 | MASTER-Kislovodsk | (11h 14m 54.97s , -00d 21m 13.0s) | C | 180 | 18.8 | 3255 | 2019-12-05 22:44:53 | MASTER-Kislovodsk | (11h 15m 24.03s , -02d 20m 40.5s) | C | 180 | 18.5 | 3256 | 2019-12-05 22:44:53 | MASTER-Kislovodsk | (11h 07m 21.82s , -01d 53m 18.4s) | C | 180 | 18.8 | 3465 | 2019-12-05 22:48:23 | MASTER-Kislovodsk | (11h 06m 56.77s , +00d 07m 55.1s) | C | 180 | 18.9 | 3465 | 2019-12-05 22:48:23 | MASTER-Kislovodsk | (11h 14m 59.33s , -00d 19m 16.0s) | C | 180 | 18.8 | 3675 | 2019-12-05 22:51:52 | MASTER-Kislovodsk | (11h 06m 56.74s , +00d 06m 37.0s) | C | 180 | 19.2 | 3675 | 2019-12-05 22:51:52 | MASTER-Kislovodsk | (11h 14m 59.54s , -00d 20m 32.0s) | C | 180 | 19.1 | 3885 | 2019-12-05 22:55:22 | MASTER-Kislovodsk | (11h 07m 20.70s , -01d 51m 39.5s) | C | 180 | 18.9 | 3887 | 2019-12-05 22:55:24 | MASTER-Kislovodsk | (11h 15m 23.69s , -02d 18m 51.4s) | C | 180 | 18.4 | Filter C is a clear (unfiltred) band. The observation and reduction will continue. The message may be cited.