TITLE: GCN CIRCULAR NUMBER: 28558 SUBJECT: Fermi trigger No 623470566: Global MASTER-Net observations report DATE: 20/10/04 19:30:27 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, D. Cheryasov (Lomonosov Moscow State University, SAI, Physics Department), R. Podesta, C.Lopez, F. Podesta, C.Francile (Observatorio Astronomico Felix Aguilar OAFA), 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 GRB201004.09 (trigger No 623470566,16h 56m 21.60s , +01d 04m 12.0s, R=8.69) errorbox 54147 sec after notice time and 54233 sec after trigger time at 2020-10-04 17:19:54 UT, with upper limit up to 19.4 mag. Observations started at twilight. The observations began at zenith distance = 51 deg. The sun altitude is -8.6 deg. The galactic latitude b = 25 deg., longitude l = 20 deg. Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/observ.php?id=1454508 We obtain a following upper limits. Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment _________|_____________________|_____________________|____________________________________|_____|_______|_______|________ 54264 | 2020-10-04 17:19:54 | MASTER-SAAO | (16h 46m 17.74s , +00d 03m 50.3s) | C | 60 | 15.9 | 54344 | 2020-10-04 17:21:14 | MASTER-SAAO | (17h 02m 51.37s , +02d 02m 40.8s) | C | 60 | 16.8 | 54424 | 2020-10-04 17:22:34 | MASTER-SAAO | (17h 02m 17.52s , +00d 02m 51.6s) | C | 60 | 17.3 | 54503 | 2020-10-04 17:23:54 | MASTER-SAAO | (16h 46m 51.42s , +02d 04m 50.1s) | C | 60 | 17.1 | 54583 | 2020-10-04 17:25:14 | MASTER-SAAO | (16h 46m 13.15s , +00d 03m 07.9s) | C | 60 | 17.1 | 54663 | 2020-10-04 17:26:34 | MASTER-SAAO | (17h 02m 55.66s , +02d 04m 30.3s) | C | 60 | 17.4 | 54743 | 2020-10-04 17:27:54 | MASTER-SAAO | (17h 02m 10.78s , +00d 03m 33.1s) | C | 60 | 18.0 | 54823 | 2020-10-04 17:29:14 | MASTER-SAAO | (16h 48m 40.21s , +04d 05m 02.6s) | C | 60 | 17.7 | 54903 | 2020-10-04 17:30:33 | MASTER-SAAO | (17h 02m 53.47s , -01d 56m 39.2s) | C | 60 | 18.1 | 54983 | 2020-10-04 17:31:53 | MASTER-SAAO | (16h 46m 45.71s , -01d 57m 25.1s) | C | 60 | 17.8 | 55063 | 2020-10-04 17:33:13 | MASTER-SAAO | (17h 04m 50.08s , +04d 02m 54.9s) | C | 60 | 18.0 | 55142 | 2020-10-04 17:34:33 | MASTER-SAAO | (16h 48m 42.28s , +04d 04m 30.6s) | C | 60 | 18.3 | 55222 | 2020-10-04 17:35:53 | MASTER-SAAO | (17h 02m 50.14s , -01d 57m 35.0s) | C | 60 | 18.5 | 55302 | 2020-10-04 17:37:13 | MASTER-SAAO | (16h 46m 52.27s , -01d 55m 57.9s) | C | 60 | 18.3 | 55382 | 2020-10-04 17:38:33 | MASTER-SAAO | (16h 51m 46.63s , +06d 03m 55.2s) | C | 60 | 18.4 | 55462 | 2020-10-04 17:39:53 | MASTER-SAAO | (17h 04m 42.83s , +04d 04m 40.7s) | C | 60 | 18.5 | 55542 | 2020-10-04 17:41:12 | MASTER-SAAO | (16h 30m 15.68s , +00d 03m 35.7s) | C | 60 | 18.5 | 55622 | 2020-10-04 17:42:32 | MASTER-SAAO | (16h 30m 45.21s , +02d 02m 37.5s) | C | 60 | 18.6 | 55702 | 2020-10-04 17:43:52 | MASTER-SAAO | (16h 51m 52.36s , +06d 03m 08.6s) | C | 60 | 18.6 | 55781 | 2020-10-04 17:45:12 | MASTER-SAAO | (16h 32m 38.87s , +04d 04m 12.8s) | C | 60 | 18.9 | 55861 | 2020-10-04 17:46:32 | MASTER-SAAO | (16h 30m 11.73s , +00d 02m 50.8s) | C | 60 | 18.7 | 55941 | 2020-10-04 17:47:51 | MASTER-SAAO | (16h 35m 46.20s , +06d 04m 16.5s) | C | 60 | 19.0 | 56020 | 2020-10-04 17:49:11 | MASTER-SAAO | (16h 30m 44.03s , -01d 56m 46.3s) | C | 60 | 19.0 | 56100 | 2020-10-04 17:50:31 | MASTER-SAAO | (16h 48m 36.21s , -03d 55m 58.0s) | C | 60 | 19.1 | 56180 | 2020-10-04 17:51:50 | MASTER-SAAO | (17h 18m 17.17s , +00d 03m 00.2s) | C | 60 | 19.3 | 56260 | 2020-10-04 17:53:10 | MASTER-SAAO | (16h 30m 46.54s , +02d 02m 12.0s) | C | 60 | 19.0 | 56339 | 2020-10-04 17:54:30 | MASTER-SAAO | (16h 32m 41.91s , +04d 02m 21.6s) | C | 60 | 19.4 | 56419 | 2020-10-04 17:55:49 | MASTER-SAAO | (16h 35m 42.77s , +06d 04m 06.4s) | C | 60 | 19.3 | 56499 | 2020-10-04 17:57:09 | MASTER-SAAO | (16h 30m 47.95s , -01d 57m 58.8s) | C | 60 | 19.2 | 56579 | 2020-10-04 17:58:29 | MASTER-SAAO | (16h 48m 40.58s , -03d 56m 24.2s) | C | 60 | 19.1 | 56659 | 2020-10-04 17:59:49 | MASTER-SAAO | (17h 18m 10.11s , +00d 02m 53.1s) | C | 60 | 19.3 | 56744 | 2020-10-04 18:01:14 | MASTER-SAAO | (17h 07m 50.74s , +06d 04m 15.6s) | C | 60 | 19.1 | 56823 | 2020-10-04 18:02:34 | MASTER-SAAO | (17h 04m 44.27s , -03d 57m 20.9s) | C | 60 | 19.2 | 56903 | 2020-10-04 18:03:54 | MASTER-SAAO | (16h 56m 08.22s , +08d 02m 04.4s) | C | 60 | 19.3 | 56983 | 2020-10-04 18:05:14 | MASTER-SAAO | (17h 18m 54.36s , +02d 02m 24.7s) | C | 60 | 19.3 | 57063 | 2020-10-04 18:06:33 | MASTER-SAAO | (17h 07m 53.75s , +06d 03m 44.1s) | C | 60 | 19.2 | 57142 | 2020-10-04 18:07:53 | MASTER-SAAO | (17h 04m 40.64s , -03d 58m 20.7s) | C | 60 | 19.3 | 57222 | 2020-10-04 18:09:13 | MASTER-SAAO | (16h 56m 14.32s , +08d 03m 48.9s) | C | 60 | 19.3 | 57302 | 2020-10-04 18:10:33 | MASTER-SAAO | (17h 18m 47.20s , +02d 02m 48.6s) | C | 60 | 19.3 | 57382 | 2020-10-04 18:11:53 | MASTER-SAAO | (16h 51m 41.32s , -05d 56m 39.5s) | C | 60 | 19.1 | 57462 | 2020-10-04 18:13:13 | MASTER-SAAO | (16h 32m 40.89s , -03d 57m 41.5s) | C | 60 | 19.2 | 57542 | 2020-10-04 18:14:33 | MASTER-SAAO | (17h 20m 43.05s , +04d 01m 48.0s) | C | 60 | 19.4 | 57622 | 2020-10-04 18:15:52 | MASTER-SAAO | (17h 12m 22.49s , +08d 01m 54.6s) | C | 60 | 19.1 | 57702 | 2020-10-04 18:17:12 | MASTER-SAAO | (16h 51m 44.08s , -05d 57m 01.8s) | C | 60 | 19.0 | 57781 | 2020-10-04 18:18:32 | MASTER-SAAO | (16h 32m 38.13s , -03d 58m 48.9s) | C | 60 | 19.2 | 57861 | 2020-10-04 18:19:52 | MASTER-SAAO | (17h 20m 48.59s , +04d 03m 38.1s) | C | 60 | 19.3 | 57941 | 2020-10-04 18:21:12 | MASTER-SAAO | (17h 12m 18.09s , +08d 02m 33.4s) | C | 60 | 19.1 | 58021 | 2020-10-04 18:22:32 | MASTER-SAAO | (17h 07m 46.58s , -05d 56m 58.6s) | C | 60 | 19.2 | 58101 | 2020-10-04 18:23:51 | MASTER-SAAO | (17h 18m 52.83s , -01d 57m 46.2s) | C | 60 | 19.3 | 58180 | 2020-10-04 18:25:11 | MASTER-SAAO | (16h 35m 37.60s , -05d 59m 08.0s) | C | 60 | 19.0 | 58260 | 2020-10-04 18:26:31 | MASTER-SAAO | (17h 24m 01.61s , +06d 01m 43.8s) | C | 60 | 19.2 | 58340 | 2020-10-04 18:27:51 | MASTER-SAAO | (17h 07m 49.27s , -05d 57m 19.1s) | C | 60 | 19.1 | 58420 | 2020-10-04 18:29:11 | MASTER-SAAO | (17h 18m 49.21s , -01d 58m 42.8s) | C | 60 | 19.2 | 58500 | 2020-10-04 18:30:31 | MASTER-SAAO | (16h 35m 44.59s , -05d 57m 43.6s) | C | 60 | 18.9 | 58580 | 2020-10-04 18:31:50 | MASTER-SAAO | (17h 23m 55.71s , +06d 02m 17.5s) | C | 60 | 19.0 | 58660 | 2020-10-04 18:33:10 | MASTER-SAAO | (16h 56m 03.55s , -07d 57m 21.8s) | C | 60 | 19.2 | 58740 | 2020-10-04 18:34:30 | MASTER-SAAO | (17h 20m 45.77s , -03d 58m 11.4s) | C | 60 | 19.3 | 58819 | 2020-10-04 18:35:50 | MASTER-SAAO | (16h 39m 54.86s , -07d 59m 29.6s) | C | 60 | 19.0 | 58899 | 2020-10-04 18:37:10 | MASTER-SAAO | (17h 12m 17.86s , -07d 59m 18.5s) | C | 60 | 19.2 | 58979 | 2020-10-04 18:38:30 | MASTER-SAAO | (17h 28m 29.72s , +08d 02m 40.4s) | C | 60 | 18.9 | 59059 | 2020-10-04 18:39:50 | MASTER-SAAO | (17h 34m 51.13s , +02d 01m 23.7s) | C | 60 | 18.9 | 59139 | 2020-10-04 18:41:09 | MASTER-SAAO | (17h 36m 51.03s , +04d 02m 49.4s) | C | 60 | 18.9 | 59219 | 2020-10-04 18:42:29 | MASTER-SAAO | (16h 56m 03.24s , -07d 58m 38.4s) | C | 60 | 19.2 | 59299 | 2020-10-04 18:43:49 | MASTER-SAAO | (17h 20m 40.28s , -03d 57m 27.2s) | C | 60 | 19.3 | 59379 | 2020-10-04 18:45:09 | MASTER-SAAO | (16h 40m 03.15s , -07d 58m 48.9s) | C | 60 | 19.0 | 59458 | 2020-10-04 18:46:29 | MASTER-SAAO | (17h 12m 12.67s , -07d 59m 44.0s) | C | 60 | 19.2 | 59538 | 2020-10-04 18:47:49 | MASTER-SAAO | (17h 28m 32.95s , +08d 01m 02.5s) | C | 60 | 18.8 | 59618 | 2020-10-04 18:49:09 | MASTER-SAAO | (17h 34m 51.05s , +02d 02m 40.0s) | C | 60 | 18.9 | 59698 | 2020-10-04 18:50:29 | MASTER-SAAO | (17h 36m 48.37s , +04d 00m 58.1s) | C | 60 | 18.8 | 59778 | 2020-10-04 18:51:49 | MASTER-SAAO | (17h 34m 52.15s , -01d 58m 01.1s) | C | 60 | 18.9 | 59858 | 2020-10-04 18:53:08 | MASTER-SAAO | (17h 23m 52.17s , -05d 58m 50.5s) | C | 60 | 19.1 | 59938 | 2020-10-04 18:54:28 | MASTER-SAAO | (17h 34m 09.68s , +00d 02m 24.4s) | C | 60 | 18.9 | 60097 | 2020-10-04 18:57:08 | MASTER-SAAO | (17h 34m 47.60s , -01d 59m 45.3s) | C | 60 | 18.9 | 60501 | 2020-10-04 19:03:52 | MASTER-SAAO | (17h 23m 51.72s , -05d 59m 11.5s) | C | 60 | 19.1 | 60581 | 2020-10-04 19:05:12 | MASTER-SAAO | (17h 34m 10.00s , +00d 01m 58.3s) | C | 60 | 18.7 | Filter C is a clear (unfiltred) band. The observation and reduction will continue. The message may be cited.