Аннотация:MASTER Global Robotic Net (http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) started MAXI GRB 220310A (Negoro et al. GCN 31725) observations in MASTER-OAFA , MASTEr-SAAO, MASTER-Kislovodsk, MASTER-OAGH (Lipunov et al. 31724) see cover map and OT at https://master.sai.msu.ru/site/master2/observ.php?id=1905736 MASTER OT J111302.33+231508.0 discovery MASTER-SAAO auto- detection system ( Lipunov et al., “MASTER Global Robotic Net”, Advances in Astronomy, 2010, 30L ) discovered GRB optical counterpart at (RA, Dec) = 11h 13m 02.33s +23d 15m 08.0s at 2022-03-10.05882 UT. The OT unfiltered magnitude at first image is 15.6m (mlim=19.5). There is no minor planet at this place. We have reference image on 2018-05-15.77649 UT with unfiltered mlim=19.5m. Spectral observations are required.