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) started inspect of the Fermi GRB220809.27 (trigger No 681719116,08h 08m 55.20s , -41d 04m 48.0s, R=18.84) errorbox 37978 sec after notice time and 38009 sec after trigger time at 2022-08-09 16:58:40 UT, with upper limit up to 17.0 mag. Observations started at twilight. The observations began at zenith distance = 76 deg. The sun altitude is -11.3 deg. The galactic latitude b = -4 deg., longitude l = 258 deg. Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/observ.php?id=2052718 We obtain a following upper limits. Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment _________| _____________________|__________ ___________|_____________________ _______________|_____|_______|___ ____|________ 38099 | 2022-08-09 16:58:40 | MASTER- SAAO | (08h 48m 19.75s , -42d 30m 56.7s) | C | 180 | 16.4 | 38256 | 2022-08-09 17:02:17 | MASTER-SAAO | (08h 49m 34.24s , -42d 16m 46.3s) | C | 60 | 16.0 | 38336 | 2022-08-09 17:03:37 | MASTER-SAAO | (09h 00m 22.49s , -42d 17m 50.2s) | C | 60 | 17.0 | 39224 | 2022-08-09 17:18:25 | MASTER-SAAO | (08h 49m 34.99s , -42d 17m 53.8s) | C | 60 | 16.0 | 39315 | 2022-08-09 17:19:57 | MASTER-SAAO | (09h 00m 29.39s , -42d 17m 29.8s) | C | 60 | 16.8 | Filter C is a clear (unfiltred) band. The observation and reduction will continue. The message may be cited.