Swift GRB240218.08: Global MASTER-Net observations report

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 Swift GRB240218.08 (trigger No 1215912,10h 47m 07.44s , +01d 18m 14.4s, R=0.05) errorbox 31 sec after notice time and 55 sec after trigger time at 2024-02-18 02:00:55 UT, with upper limit up to 17.5 mag. The observations began at zenith distance = 47 deg. The sun altitude is -27.1 deg. The galactic latitude b = 51 deg., longitude l = 250 deg. Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/observ.php?id=2380863 We obtain a following upper limits. Tmid-T0 | Site |Filt.| Expt. | Limit| Comment _________|_____________________|_____|_______|______|________ 60 | MASTER-SAAO | P/ | 10 | 17.5 | The observation and reduction will continue. The message may be cited.