Аннотация:MASTER-OAFA robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in Argentina (OAFA observatory of San Juan National University) started inspect of the Fermi GRB 220305A ( R. Dunwoody et al., GCN 31689) errorbox 56245 sec after notice time and 56274 sec after trigger time at 2022-03-06 03:11:15 UT, with upper limit up to 18.3 mag. The observations began at zenith distance = 25 deg. The sun altitude is -46.7 deg. The galactic latitude b = 26 deg., longitude l = 287 deg. Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/observ.php?id=1902853 We obtain a following upper limits. Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment | 56305 | 2022-03-06 03:11:15 | MASTER- OAFA | (11h 29m 45.56s , -35d 27m 42.1s) | C | 60 | 15.9 | 58403 | 2022-03-06 03:46:13 | MASTER-OAFA | (11h 29m 45.60s , -35d 28m 47.3s) | C | 60 | 18.3 | Filter C is a clear (unfiltred) band. The observation and reduction will continue. The message may be cited.