Swift GRB200903.03: 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) was pointed to the Swift GRB200903.03 (trigger No 994389,10h 57m 14.64s , +50d 30m 03.6s, R=0.05) errorbox 33 sec after notice time and 788 sec after trigger time at 2020-09-03 00:57:31 UT, with upper limit up to 14.0 mag. The observations began at zenith distance = 77 deg. The sun altitude is -22.2 deg. The galactic latitude b = 59 deg., longitude l = 158 deg. Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/observ.php?id=1432852 We obtain a following upper limits. Tmid-T0 | Site |Filt.| Expt. | Limit| Comment _________|_____________________|_____|_______|______|________ 869 | MASTER-Tavrida | C | 160 | 14.0 | Filter C is a clear (unfiltred) band. The observation and reduction will continue. The message may be cited.