TITLE: GCN CIRCULAR NUMBER: 30920 SUBJECT: Fermi trigger No 654854799: Global MASTER-Net observations report DATE: 21/10/03 00:46:14 GMT FROM: Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru> 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-Tavrida robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in Russia (Lomonosov MSU, SAI Crimea astronomical station) started inspect of the Fermi GRB211002.34 (trigger No 654854799,04h 40m 50.40s , -04d 46m 48.0s, R=3.36) errorbox 57656 sec after trigger time at 2021-10-03 00:07:30 UT, with upper limit up to 19.5 mag. The observations began at zenith distance = 52 deg. The sun altitude is -37.3 deg. MASTER-Kislovodsk robotic telescope located in Russia (Lomonosov MSU, Kislovodsk Solar Station of Pulkovo observatory) started inspect of the Fermi GRB211002.34 errorbox 57660 sec after trigger time at 2021-10-03 00:07:35 UT, with upper limit up to 17.8 mag. The observations began at zenith distance = 49 deg. The sun altitude is -33.0 deg. The galactic latitude b = -31 deg., longitude l = 202 deg. Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/observ.php?id=1740439 We obtain a following upper limits. Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment _________|_____________________|_____________________|____________________________________|_____|_______|_______|________ 57746 | 2021-10-03 00:07:30 | MASTER-Tavrida | (04h 38m 07.58s , -04d 32m 08.1s) | C | 180 | 18.9 | 57926 | 2021-10-03 00:07:30 | MASTER-Tavrida | (04h 38m 07.58s , -04d 32m 08.1s) | C | 540 | 19.5 | Coadd 57751 | 2021-10-03 00:07:35 | MASTER-Kislovodsk | (04h 39m 37.29s , -04d 37m 54.4s) | C | 180 | 17.1 | 57931 | 2021-10-03 00:07:35 | MASTER-Kislovodsk | (04h 39m 37.30s , -04d 37m 54.4s) | C | 540 | 17.4 | Coadd 57751 | 2021-10-03 00:07:35 | MASTER-Kislovodsk | (04h 43m 58.15s , -05d 02m 15.2s) | C | 180 | 17.6 | 57931 | 2021-10-03 00:07:35 | MASTER-Kislovodsk | (04h 43m 58.15s , -05d 02m 15.2s) | C | 540 | 17.8 | Coadd 57946 | 2021-10-03 00:10:49 | MASTER-Tavrida | (04h 38m 07.72s , -04d 33m 51.6s) | C | 180 | 18.9 | 57951 | 2021-10-03 00:10:55 | MASTER-Kislovodsk | (04h 39m 35.40s , -04d 36m 44.8s) | C | 180 | 16.9 | 57951 | 2021-10-03 00:10:55 | MASTER-Kislovodsk | (04h 43m 56.34s , -05d 01m 05.8s) | C | 180 | 17.4 | 58145 | 2021-10-03 00:14:08 | MASTER-Tavrida | (04h 38m 11.12s , -04d 32m 25.5s) | C | 180 | 18.9 | 58151 | 2021-10-03 00:14:15 | MASTER-Kislovodsk | (04h 39m 35.50s , -04d 37m 59.0s) | C | 180 | 15.5 | 58151 | 2021-10-03 00:14:15 | MASTER-Kislovodsk | (04h 43m 56.54s , -05d 02m 20.1s) | C | 180 | 15.9 | 58344 | 2021-10-03 00:17:27 | MASTER-Tavrida | (04h 38m 05.22s , -04d 33m 02.6s) | C | 180 | 19.0 | 58352 | 2021-10-03 00:17:36 | MASTER-Kislovodsk | (04h 39m 38.63s , -04d 36m 38.9s) | C | 180 | 15.1 | 58352 | 2021-10-03 00:17:36 | MASTER-Kislovodsk | (04h 43m 59.71s , -05d 01m 00.0s) | C | 180 | 15.4 | 58493 | 2021-10-03 00:20:56 | MASTER-Kislovodsk | (04h 34m 01.11s , -06d 14m 26.7s) | C | 60 | 12.6 | 58573 | 2021-10-03 00:22:16 | MASTER-Kislovodsk | (04h 48m 24.62s , -04d 19m 32.0s) | C | 60 | 14.1 | 58573 | 2021-10-03 00:22:16 | MASTER-Kislovodsk | (04h 52m 45.43s , -04d 43m 53.4s) | C | 60 | 14.4 | 58653 | 2021-10-03 00:23:36 | MASTER-Kislovodsk | (04h 47m 55.72s , -02d 26m 34.0s) | C | 60 | 15.5 | 58653 | 2021-10-03 00:23:36 | MASTER-Kislovodsk | (04h 52m 16.51s , -02d 50m 52.3s) | C | 60 | 16.1 | 58970 | 2021-10-03 00:28:54 | MASTER-Kislovodsk | (04h 39m 38.17s , -08d 33m 24.9s) | C | 60 | 14.7 | 58970 | 2021-10-03 00:28:54 | MASTER-Kislovodsk | (04h 35m 16.23s , -08d 09m 06.7s) | C | 60 | 14.2 | 59050 | 2021-10-03 00:30:14 | MASTER-Kislovodsk | (04h 49m 20.75s , -06d 13m 35.1s) | C | 60 | 13.9 | 59050 | 2021-10-03 00:30:14 | MASTER-Kislovodsk | (04h 53m 41.87s , -06d 37m 52.0s) | C | 60 | 14.6 | 59130 | 2021-10-03 00:31:34 | MASTER-Kislovodsk | (04h 32m 25.35s , -00d 33m 02.8s) | C | 60 | 14.9 | 59130 | 2021-10-03 00:31:34 | MASTER-Kislovodsk | (04h 36m 46.78s , -00d 57m 08.7s) | C | 60 | 15.8 | 59210 | 2021-10-03 00:32:54 | MASTER-Kislovodsk | (04h 50m 38.69s , -08d 07m 41.2s) | C | 60 | 12.7 | 59451 | 2021-10-03 00:36:55 | MASTER-Kislovodsk | (04h 34m 06.86s , -06d 14m 22.4s) | C | 60 | 14.4 | 59451 | 2021-10-03 00:36:55 | MASTER-Kislovodsk | (04h 38m 28.13s , -06d 38m 37.0s) | C | 60 | 15.2 | 59531 | 2021-10-03 00:38:15 | MASTER-Kislovodsk | (04h 48m 23.18s , -04d 21m 27.5s) | C | 60 | 15.1 | 59531 | 2021-10-03 00:38:15 | MASTER-Kislovodsk | (04h 52m 44.06s , -04d 45m 40.2s) | C | 60 | 15.8 | 59611 | 2021-10-03 00:39:35 | MASTER-Kislovodsk | (04h 47m 56.18s , -02d 27m 22.2s) | C | 60 | 14.9 | 59611 | 2021-10-03 00:39:35 | MASTER-Kislovodsk | (04h 52m 17.17s , -02d 51m 31.7s) | C | 60 | 15.7 | Filter C is a clear (unfiltred) band. The observation and reduction will continue. The message may be cited.