Fermi GRB 220107A: Global MASTER-Net observations report

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 GRB 220107A ( Fermi GBM team, GCN 31399) errorbox 14945 sec after notice time and 14974 sec after trigger time at 2022-01-07 18:55:06 UT, with upper limit up to 18.6 mag. The observations began at zenith distance = 73 deg. The sun altitude is -48.3 deg. The galactic latitude b = 68 deg., longitude l = 187 deg. Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/observ.php?id=1841973 We obtain a following upper limits. Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment _________|_____________________|_____________________|____________________________________|_____|_______|_______|________ 15004 | 2022-01-07 18:55:06 | MASTER-Tavrida | (11h 04m 15.78s , +35d 40m 05.4s) | C | 60 | 13.2 | 15163 | 2022-01-07 18:57:45 | MASTER-Tavrida | (11h 07m 37.93s , +33d 44m 04.2s) | C | 60 | 12.8 | 15243 | 2022-01-07 18:59:04 | MASTER-Tavrida | (11h 17m 11.22s , +33d 45m 44.4s) | C | 60 | 13.6 | 18102 | 2022-01-07 19:46:44 | MASTER-Tavrida | (11h 11m 38.28s , +37d 34m 23.5s) | C | 60 | 18.0 | 18182 | 2022-01-07 19:48:03 | MASTER-Tavrida | (11h 04m 13.64s , +35d 40m 14.4s) | C | 60 | 17.5 | 18261 | 2022-01-07 19:49:23 | MASTER-Tavrida | (11h 14m 10.15s , +35d 39m 14.1s) | C | 60 | 18.0 | 18341 | 2022-01-07 19:50:42 | MASTER-Tavrida | (11h 07m 30.05s , +33d 44m 06.6s) | C | 60 | 18.2 | 18421 | 2022-01-07 19:52:02 | MASTER-Tavrida | (11h 17m 13.08s , +33d 44m 18.7s) | C | 60 | 16.7 | 18581 | 2022-01-07 19:54:42 | MASTER-Tavrida | (11h 23m 01.66s , +35d 39m 47.5s) | C | 60 | 13.3 | 19251 | 2022-01-07 20:05:52 | MASTER-Tavrida | (11h 11m 42.85s , +37d 33m 19.8s) | C | 60 | 18.6 | 19330 | 2022-01-07 20:07:11 | MASTER-Tavrida | (11h 04m 17.45s , +35d 38m 35.9s) | C | 60 | 17.6 | 19409 | 2022-01-07 20:08:31 | MASTER-Tavrida | (11h 14m 05.38s , +35d 40m 09.3s) | C | 60 | 18.0 | Filter C is a clear (unfiltred) band. The observation and reduction will continue. The message may be cited.