EP EP241021a: Global MASTER-Net observations report

MASTER-Tunka robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in Russia (Applied Physics Institute, Irkutsk State University) was pointed to the EP241021a ( EP Team et al., GCN 37834) errorbox 18028 sec after notice time and 1 days 25483 sec after trigger time at 2024-10-22 12:12:39 UT, with upper limit up to 18.3 mag. The observations began at zenith distance = 74 deg. The sun altitude is -21.5 deg. The galactic latitude b = -53 deg., longitude l = 151 deg. Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/observ.php?id=2645359 We obtain a following upper limits. Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment _________|_____________________|_____________________|____________________________________|_____|_______|_______|________ 111913 | 2024-10-22 12:12:39 | MASTER-Tunka | (01h 55m 38.92s , +05d 43m 58.6s) | C | 60 | 18.3 | Filter C is a clear (unfiltred) band. The observation and reduction will continue. The message may be cited.