Fermi trigger No 722460326: 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) started inspect of the Fermi GRB231123.81 (trigger No 722460326,11h 08m 43.20s , -78d 03m 00.0s, R=8.7) errorbox 1 days 17303 sec after notice time and 1 days 17335 sec after trigger time at 2023-11-25 00:14:17 UT, with upper limit up to 18.0 mag. The observations began at zenith distance = 52 deg.The sun altitude is -31.3 deg. The galactic latitude b = -16 deg., longitude l = 298 deg. Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/observ.php?id=2314293 We obtain a following upper limits. Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment _________|_____________________|_____________________|____________________________________|_____|_______|_______|________

103766 | 2023-11-25 00:14:17 | MASTER-SAAO | (09h 30m 40.86s

, -78d 11m 47.4s) | C | 60 | 18.0 |

103766 | 2023-11-25 00:14:17 | MASTER-SAAO | (10h 12m 34.78s

, -78d 48m 20.1s) | C | 60 | 17.8 | Filter C is a clear (unfiltred) band.

The observation and reduction will continue. The message may be cited.