TITLE: GCN CIRCULAR NUMBER: 31026 SUBJECT: Fermi GRB 211031A: Global MASTER-Net observations report DATE: 21/10/31 06:00:24 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, T.Pogrosheva, E.Minkina, A.Chasovnikov, V.Topolev, V.Grinshpun, 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 (Irkutsk State University, API),
A. Tlatov, D. Dormidontov (Kislovodsk Solar Station of the Pulkovo Observatory),
A. Gabovich, V.Yurkov (Blagoveschensk Educational State University)
MASTER-IAC robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in Spain (IAC Teide Observatory) started inspect of the Fermi GRB 211031A ( Fermi GBM team, GCN 31025) errorbox 236 sec after notice time and 247 sec after trigger time at 2021-10-31 04:15:47 UT, with upper limit up to 18.0 mag. The observations began at zenith distance = 80 deg. The sun altitude is -39.6 deg.
The galactic latitude b = -39 deg., longitude l = 262 deg.
Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/observ.php?id=1770974
We obtain a following upper limits.
Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment _________|_____________________|_____________________|____________________________________|_____|_______|_______|________
278 | 2021-10-31 04:15:47 | MASTER-IAC | (04h 36m 44.84s , -50d 06m 53.9s) | C | 60 | 17.8 | 278 | 2021-10-31 04:15:47 | MASTER-IAC | (04h 49m 15.87s , -50d 12m 15.5s) | C | 60 | 17.5 | 359 | 2021-10-31 04:17:08 | MASTER-IAC | (04h 26m 14.58s , -48d 14m 56.9s) | C | 60 | 17.8 | 359 | 2021-10-31 04:17:08 | MASTER-IAC | (04h 38m 17.79s , -48d 20m 19.1s) | C | 60 | 17.6 | 439 | 2021-10-31 04:18:28 | MASTER-IAC | (04h 38m 51.68s , -46d 19m 12.6s) | C | 60 | 17.7 | 439 | 2021-10-31 04:18:28 | MASTER-IAC | (04h 50m 28.92s , -46d 24m 36.8s) | C | 60 | 17.8 | 519 | 2021-10-31 04:19:48 | MASTER-IAC | (04h 49m 00.94s , -48d 13m 25.2s) | C | 60 | 17.7 | 519 | 2021-10-31 04:19:48 | MASTER-IAC | (05h 01m 03.51s , -48d 18m 49.0s) | C | 60 | 17.9 | 599 | 2021-10-31 04:21:08 | MASTER-IAC | (04h 16m 44.59s , -46d 19m 34.7s) | C | 60 | 17.6 | 599 | 2021-10-31 04:21:08 | MASTER-IAC | (04h 28m 21.86s , -46d 24m 56.7s) | C | 60 | 17.7 | 679 | 2021-10-31 04:22:28 | MASTER-IAC | (04h 03m 27.30s , -48d 15m 04.6s) | C | 60 | 17.6 | 679 | 2021-10-31 04:22:28 | MASTER-IAC | (04h 15m 30.53s , -48d 20m 21.6s) | C | 60 | 17.6 | 759 | 2021-10-31 04:23:47 | MASTER-IAC | (04h 29m 28.64s , -44d 27m 11.9s) | C | 60 | 18.0 | 759 | 2021-10-31 04:23:47 | MASTER-IAC | (04h 40m 43.23s , -44d 32m 34.3s) | C | 60 | 17.9 | 840 | 2021-10-31 04:25:08 | MASTER-IAC | (05h 00m 31.12s , -50d 07m 51.8s) | C | 60 | 17.7 | 840 | 2021-10-31 04:25:08 | MASTER-IAC | (05h 13m 01.95s , -50d 13m 14.2s) | C | 60 | 17.7 | 919 | 2021-10-31 04:26:28 | MASTER-IAC | (05h 24m 10.95s , -50d 05m 36.3s) | C | 60 | 17.6 | 919 | 2021-10-31 04:26:28 | MASTER-IAC | (05h 36m 41.14s , -50d 11m 01.0s) | C | 60 | 17.6 | 1008 | 2021-10-31 04:27:57 | MASTER-IAC | (05h 00m 49.49s , -46d 19m 38.2s) | C | 60 | 18.0 | 1008 | 2021-10-31 04:27:57 | MASTER-IAC | (05h 12m 26.75s , -46d 25m 02.2s) | C | 60 | 18.0 | 1088 | 2021-10-31 04:29:16 | MASTER-IAC | (05h 11m 56.16s , -48d 12m 07.2s) | C | 60 | 17.9 | 1088 | 2021-10-31 04:29:16 | MASTER-IAC | (05h 23m 58.44s , -48d 17m 31.6s) | C | 60 | 17.7 | 1168 | 2021-10-31 04:30:36 | MASTER-IAC | (04h 50m 46.76s , -44d 25m 30.0s) | C | 60 | 18.0 | 1168 | 2021-10-31 04:30:36 | MASTER-IAC | (05h 02m 01.22s , -44d 30m 54.5s) | C | 60 | 18.0 | 1248 | 2021-10-31 04:31:56 | MASTER-IAC | (04h 49m 12.23s , -50d 12m 20.3s) | C | 60 | 17.5 | 1248 | 2021-10-31 04:31:56 | MASTER-IAC | (04h 36m 41.20s , -50d 07m 02.1s) | C | 60 | 17.5 | 1328 | 2021-10-31 04:33:17 | MASTER-IAC | (04h 26m 15.80s , -48d 14m 22.8s) | C | 60 | 17.6 | 1328 | 2021-10-31 04:33:17 | MASTER-IAC | (04h 38m 19.02s , -48d 19m 41.8s) | C | 60 | 17.6 | 1410 | 2021-10-31 04:34:39 | MASTER-IAC | (04h 38m 45.08s , -46d 20m 58.0s) | C | 60 | 17.7 | 1410 | 2021-10-31 04:34:39 | MASTER-IAC | (04h 50m 22.92s , -46d 26m 18.5s) | C | 60 | 17.7 | 1490 | 2021-10-31 04:35:59 | MASTER-IAC | (04h 49m 05.79s , -48d 14m 28.4s) | C | 60 | 17.8 | 1490 | 2021-10-31 04:35:59 | MASTER-IAC | (05h 01m 08.89s , -48d 19m 48.0s) | C | 60 | 17.8 | 1570 | 2021-10-31 04:37:19 | MASTER-IAC | (04h 16m 45.94s , -46d 19m 45.9s) | C | 60 | 17.6 | 1570 | 2021-10-31 04:37:19 | MASTER-IAC | (04h 28m 23.52s , -46d 25m 03.9s) | C | 60 | 17.6 | 1650 | 2021-10-31 04:38:39 | MASTER-IAC | (04h 15m 26.64s , -48d 21m 01.4s) | C | 60 | 17.5 | 1650 | 2021-10-31 04:38:39 | MASTER-IAC | (04h 03m 22.80s , -48d 15m 51.1s) | C | 60 | 17.5 | 1730 | 2021-10-31 04:39:59 | MASTER-IAC | (04h 29m 32.96s , -44d 25m 44.0s) | C | 60 | 17.8 | 1730 | 2021-10-31 04:39:59 | MASTER-IAC | (04h 40m 47.25s , -44d 31m 03.2s) | C | 60 | 17.8 | 1810 | 2021-10-31 04:41:19 | MASTER-IAC | (05h 00m 23.71s , -50d 07m 16.7s) | C | 60 | 17.5 | 1810 | 2021-10-31 04:41:19 | MASTER-IAC | (05h 12m 54.26s , -50d 12m 34.3s) | C | 60 | 17.5 | 1890 | 2021-10-31 04:42:39 | MASTER-IAC | (05h 24m 06.92s , -50d 05m 25.6s) | C | 60 | 17.6 | 1890 | 2021-10-31 04:42:39 | MASTER-IAC | (05h 36m 36.72s , -50d 10m 45.6s) | C | 60 | 17.5 | 1980 | 2021-10-31 04:44:09 | MASTER-IAC | (05h 00m 52.27s , -46d 19m 17.1s) | C | 60 | 17.9 | 1980 | 2021-10-31 04:44:09 | MASTER-IAC | (05h 12m 29.05s , -46d 24m 36.9s) | C | 60 | 17.9 | 2060 | 2021-10-31 04:45:29 | MASTER-IAC | (05h 11m 51.07s , -48d 13m 54.2s) | C | 60 | 17.8 | 2060 | 2021-10-31 04:45:29 | MASTER-IAC | (05h 23m 53.40s , -48d 19m 13.7s) | C | 60 | 17.7 | 2140 | 2021-10-31 04:46:49 | MASTER-IAC | (04h 50m 52.07s , -44d 26m 38.8s) | C | 60 | 17.9 | 2140 | 2021-10-31 04:46:49 | MASTER-IAC | (05h 02m 06.28s , -44d 31m 58.6s) | C | 60 | 17.9 | 2247 | 2021-10-31 04:48:36 | MASTER-IAC | (04h 26m 13.29s , -48d 15m 24.6s) | C | 60 | 17.5 | 2247 | 2021-10-31 04:48:36 | MASTER-IAC | (04h 38m 16.50s , -48d 20m 37.5s) | C | 60 | 17.5 | 2327 | 2021-10-31 04:49:56 | MASTER-IAC | (04h 38m 50.29s , -46d 19m 33.6s) | C | 60 | 17.6 | 2327 | 2021-10-31 04:49:56 | MASTER-IAC | (04h 50m 27.51s , -46d 24m 51.2s) | C | 60 | 17.7 | 2407 | 2021-10-31 04:51:16 | MASTER-IAC | (04h 48m 59.87s , -48d 13m 44.4s) | C | 60 | 17.6 | 2407 | 2021-10-31 04:51:16 | MASTER-IAC | (05h 01m 02.62s , -48d 19m 01.4s) | C | 60 | 17.7 | 2487 | 2021-10-31 04:52:36 | MASTER-IAC | (04h 16m 41.85s , -46d 19m 52.3s) | C | 60 | 17.3 | 2487 | 2021-10-31 04:52:36 | MASTER-IAC | (04h 28m 19.42s , -46d 25m 06.4s) | C | 60 | 17.5 | 2567 | 2021-10-31 04:53:56 | MASTER-IAC | (04h 03m 25.63s , -48d 15m 26.4s) | C | 60 | 17.0 | 2567 | 2021-10-31 04:53:56 | MASTER-IAC | (04h 15m 29.73s , -48d 20m 30.0s) | C | 60 | 17.1 | 2647 | 2021-10-31 04:55:15 | MASTER-IAC | (04h 29m 26.64s , -44d 27m 24.5s) | C | 60 | 17.6 | 2647 | 2021-10-31 04:55:15 | MASTER-IAC | (04h 40m 41.23s , -44d 32m 42.7s) | C | 60 | 17.7 | 2727 | 2021-10-31 04:56:35 | MASTER-IAC | (05h 00m 30.09s , -50d 08m 04.0s) | C | 60 | 17.4 | 2727 | 2021-10-31 04:56:35 | MASTER-IAC | (05h 13m 00.88s , -50d 13m 20.3s) | C | 60 | 17.4 | 2807 | 2021-10-31 04:57:55 | MASTER-IAC | (05h 24m 10.11s , -50d 05m 55.1s) | C | 60 | 17.4 | 2807 | 2021-10-31 04:57:55 | MASTER-IAC | (05h 36m 40.10s , -50d 11m 14.1s) | C | 60 | 17.5 | 2887 | 2021-10-31 04:59:15 | MASTER-IAC | (05h 00m 48.67s , -46d 20m 15.2s) | C | 60 | 17.7 | 2887 | 2021-10-31 04:59:15 | MASTER-IAC | (05h 12m 25.67s , -46d 25m 36.0s) | C | 60 | 17.8 | 2967 | 2021-10-31 05:00:35 | MASTER-IAC | (05h 11m 55.69s , -48d 12m 17.8s) | C | 60 | 17.7 | 2967 | 2021-10-31 05:00:35 | MASTER-IAC | (05h 23m 57.70s , -48d 17m 37.3s) | C | 60 | 17.6 | 3052 | 2021-10-31 05:02:01 | MASTER-IAC | (04h 50m 44.33s , -44d 25m 41.8s) | C | 60 | 17.8 | 3052 | 2021-10-31 05:02:01 | MASTER-IAC | (05h 01m 58.55s , -44d 31m 02.5s) | C | 60 | 17.9 | 3132 | 2021-10-31 05:03:21 | MASTER-IAC | (05h 34m 38.98s , -48d 11m 05.7s) | C | 60 | 17.6 | 3132 | 2021-10-31 05:03:21 | MASTER-IAC | (05h 46m 41.06s , -48d 16m 27.9s) | C | 60 | 17.5 | 3212 | 2021-10-31 05:04:41 | MASTER-IAC | (05h 22m 52.50s , -46d 18m 32.3s) | C | 60 | 17.8 | 3212 | 2021-10-31 05:04:41 | MASTER-IAC | (05h 34m 29.68s , -46d 23m 54.8s) | C | 60 | 17.6 | 3292 | 2021-10-31 05:06:01 | MASTER-IAC | (05h 12m 02.25s , -44d 25m 57.9s) | C | 60 | 18.0 | 3292 | 2021-10-31 05:06:01 | MASTER-IAC | (05h 23m 16.78s , -44d 31m 20.4s) | C | 60 | 17.8 | 3372 | 2021-10-31 05:07:21 | MASTER-IAC | (05h 47m 55.85s , -50d 06m 12.2s) | C | 60 | 17.4 | 3372 | 2021-10-31 05:07:21 | MASTER-IAC | (06h 00m 26.46s , -50d 11m 35.1s) | C | 60 | 17.4 | Filter C is a clear (unfiltred) band.
The observation and reduction will continue. The message may be cited.