TITLE: GCN CIRCULAR NUMBER: 32615 SUBJECT: Fermi trigger No 686350260: Global MASTER-Net observations report DATE: 22/10/02 19:00:25 GMT FROM: Vladimir Lipunov at Moscow State U/Krylov Obs lipunov@xray.sai.msu.ru
V. Lipunov, V.Kornilov, E.Gorbovskoy, K.Zhirkov, N.Tyurina, P.Balanutsa, A.Kuznetsov, D. Vlasenko, G.Antipov, D.Zimnukhov, V.Senik, E.Minkina, A.Chasovnikov, V.Topolev, D.Kuvshinov, D.Cheryasov, Ya.Kechin (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 (Irkutsk State University, API),
L.Carrasco, J.R.Valdes, V.Chavushyan, V.M.Patino Alvarez, J.Martinez, A.R.Corella, L.H.Rodriguez (INAOE, Guillermo Haro Astrophysics Observatory),
A. Tlatov, D. Dormidontov (Kislovodsk Solar Station of the Pulkovo Observatory),
A. Gabovich, V.Yurkov (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 GRB221001.87 (trigger No 686350260,18h 50m 48.00s , +24d 46m 48.0s, R=19.5) errorbox 76529 sec after notice time and 76562 sec after trigger time at 2022-10-02 18:06:58 UT, with upper limit up to 17.9 mag. The observations began at zenith distance = 42 deg. The sun altitude is -18.7 deg.
The galactic latitude b = 11 deg., longitude l = 55 deg.
Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/observ.php?id=2107123
We obtain a following upper limits.
Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment _________|_____________________|_____________________|____________________________________|_____|_______|_______|________
76593 | 2022-10-02 18:06:58 | MASTER-SAAO | (19h 23m 56.43s , +08d 42m 39.4s) | C | 60 | 16.7 | 76686 | 2022-10-02 18:08:31 | MASTER-SAAO | (19h 31m 53.96s , +08d 41m 19.8s) | C | 60 | 16.8 | 76768 | 2022-10-02 18:09:53 | MASTER-SAAO | (19h 30m 31.85s , +10d 37m 23.8s) | C | 60 | 17.0 | 76863 | 2022-10-02 18:11:28 | MASTER-SAAO | (19h 38m 38.25s , +10d 35m 32.4s) | C | 60 | 17.3 | 76958 | 2022-10-02 18:13:03 | MASTER-SAAO | (19h 18m 35.06s , +06d 49m 16.4s) | C | 60 | 17.5 | 77041 | 2022-10-02 18:14:26 | MASTER-SAAO | (19h 26m 35.60s , +06d 49m 52.3s) | C | 60 | 16.9 | 77141 | 2022-10-02 18:16:06 | MASTER-SAAO | (19h 15m 06.91s , +10d 36m 41.3s) | C | 60 | 17.4 | 77222 | 2022-10-02 18:17:27 | MASTER-SAAO | (19h 23m 19.04s , +10d 36m 43.2s) | C | 60 | 17.6 | 77318 | 2022-10-02 18:19:03 | MASTER-SAAO | (19h 33m 53.33s , +06d 47m 48.6s) | C | 60 | 17.1 | 77523 | 2022-10-02 18:22:28 | MASTER-SAAO | (19h 23m 53.20s , +08d 43m 19.0s) | C | 60 | 16.9 | 77649 | 2022-10-02 18:24:34 | MASTER-SAAO | (19h 31m 57.57s , +08d 43m 54.8s) | C | 60 | 17.1 | 77744 | 2022-10-02 18:26:09 | MASTER-SAAO | (19h 30m 39.48s , +10d 37m 05.4s) | C | 60 | 17.2 | 77826 | 2022-10-02 18:27:31 | MASTER-SAAO | (19h 38m 39.97s , +10d 35m 39.9s) | C | 60 | 17.1 | 77918 | 2022-10-02 18:29:03 | MASTER-SAAO | (19h 18m 42.24s , +06d 48m 52.2s) | C | 60 | 17.1 | 78019 | 2022-10-02 18:30:44 | MASTER-SAAO | (19h 26m 41.90s , +06d 50m 06.7s) | C | 60 | 17.1 | 78117 | 2022-10-02 18:32:22 | MASTER-SAAO | (19h 15m 10.33s , +10d 37m 13.0s) | C | 60 | 17.4 | 78214 | 2022-10-02 18:34:00 | MASTER-SAAO | (19h 23m 22.22s , +10d 38m 19.4s) | C | 60 | 17.6 | 78309 | 2022-10-02 18:35:34 | MASTER-SAAO | (19h 33m 53.87s , +06d 49m 05.5s) | C | 60 | 17.2 | 79305 | 2022-10-02 18:52:31 | MASTER-SAAO | (19h 18m 01.59s , +13d 06m 56.7s) | C | 20 | 17.5 | 79365 | 2022-10-02 18:53:26 | MASTER-SAAO | (19h 18m 01.58s , +13d 05m 28.4s) | C | 30 | 17.2 | 79420 | 2022-10-02 18:54:16 | MASTER-SAAO | (19h 18m 04.39s , +13d 07m 20.1s) | C | 40 | 17.8 | 79491 | 2022-10-02 18:55:21 | MASTER-SAAO | (19h 17m 58.59s , +13d 06m 26.8s) | C | 50 | 17.9 | Filter C is a clear (unfiltred) band.
The observation and reduction will continue. The message may be cited.