Аннотация:MASTER-SAAO robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in South Africa (South African Astronomical Observatory) was pointed to the LAT GRB220527.39 (trigger No 675335840,21h 34m 16.80s , -14d 54m 00.0s, R=0.08) errorbox 27168 sec after notice time and 47094 sec after trigger time at 2022-05-27 22:22:10 UT, with upper limit up to 17.4 mag. The observations began at zenith distance = 76 deg. The sun altitude is -78.9 deg. The galactic latitude b = -43 deg., longitude l = 38 deg. Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/observ.php?id=1987766 We obtain a following upper limits. Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment | 47185 | 2022-05-27 22:22:10 | MASTER- SAAO | (21h 33m 06.91s , -15d 07m 06.2s) | C | 180 | 17.4 | Filter C is a clear (unfiltred) band. The observation and reduction will continue. The message may be cited.