Fermi GRB 241226A: 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 GRB 241226A ( Fermi GBM team, GCN 38674) errorbox 739 sec after notice time and 779 sec after trigger time at 2024-12-26 22:46:39 UT, with upper limit up to 19.3 mag. The observations began at zenith distance = 42 deg. The sun altitude is -34.6 deg. The galactic latitude b = -17 deg., longitude l = 196 deg. Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/observ.php?id=2723414 We obtain a following upper limits. Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment _________|_____________________|_____________________|____________________________________|_____|_______|_______|________ 809 | 2024-12-26 22:46:39 | MASTER-SAAO | (05h 16m 55.09s , +06d 41m 59.3s) | C | 60 | 18.9 | 1088 | 2024-12-26 22:51:17 | MASTER-SAAO | (05h 25m 02.50s , +06d 42m 29.7s) | C | 60 | 18.9 | 1508 | 2024-12-26 22:58:18 | MASTER-SAAO | (05h 16m 58.65s , +06d 40m 57.5s) | C | 60 | 18.8 | 1588 | 2024-12-26 22:59:37 | MASTER-SAAO | (05h 15m 51.46s , +04d 47m 02.0s) | C | 60 | 19.1 | 1667 | 2024-12-26 23:00:56 | MASTER-SAAO | (05h 23m 55.34s , +04d 48m 51.0s) | C | 60 | 19.1 | 1749 | 2024-12-26 23:02:18 | MASTER-SAAO | (05h 24m 55.24s , +06d 42m 08.0s) | C | 60 | 19.2 | 2168 | 2024-12-26 23:09:17 | MASTER-SAAO | (05h 16m 55.62s , +06d 42m 52.8s) | C | 60 | 19.0 | 2247 | 2024-12-26 23:10:37 | MASTER-SAAO | (05h 15m 51.16s , +04d 47m 34.1s) | C | 60 | 19.2 | 2327 | 2024-12-26 23:11:56 | MASTER-SAAO | (05h 23m 55.37s , +04d 49m 20.3s) | C | 60 | 19.2 | 2406 | 2024-12-26 23:13:15 | MASTER-SAAO | (05h 24m 57.26s , +06d 42m 31.6s) | C | 60 | 19.3 | 2825 | 2024-12-26 23:20:14 | MASTER-SAAO | (05h 16m 54.46s , +06d 43m 25.1s) | C | 60 | 19.0 | 2904 | 2024-12-26 23:21:33 | MASTER-SAAO | (05h 15m 49.72s , +04d 47m 59.5s) | C | 60 | 18.9 | 2984 | 2024-12-26 23:22:53 | MASTER-SAAO | (05h 23m 54.50s , +04d 49m 40.3s) | C | 60 | 19.2 | 3063 | 2024-12-26 23:24:13 | MASTER-SAAO | (05h 24m 54.98s , +06d 42m 55.6s) | C | 60 | 19.0 | 6284 | 2024-12-27 00:17:53 | MASTER-SAAO | (05h 01m 18.02s , +06d 44m 53.0s) | C | 60 | 18.9 | 6547 | 2024-12-27 00:22:16 | MASTER-SAAO | (05h 16m 39.60s , +06d 44m 03.0s) | C | 60 | 18.8 | 6626 | 2024-12-27 00:23:35 | MASTER-SAAO | (05h 15m 39.99s , +04d 50m 13.3s) | C | 60 | 18.9 | 6705 | 2024-12-27 00:24:54 | MASTER-SAAO | (05h 23m 39.63s , +04d 51m 50.4s) | C | 60 | 18.2 | 6784 | 2024-12-27 00:26:14 | MASTER-SAAO | (05h 24m 46.30s , +06d 44m 30.7s) | C | 60 | 19.0 | 6864 | 2024-12-27 00:27:33 | MASTER-SAAO | (05h 09m 27.76s , +06d 46m 15.6s) | C | 60 | 19.1 | 6943 | 2024-12-27 00:28:53 | MASTER-SAAO | (05h 01m 17.79s , +06d 45m 27.7s) | C | 60 | 18.9 | 7023 | 2024-12-27 00:30:12 | MASTER-SAAO | (05h 14m 54.59s , +02d 57m 23.8s) | C | 60 | 18.8 | 7102 | 2024-12-27 00:31:31 | MASTER-SAAO | (05h 22m 50.49s , +02d 56m 25.5s) | C | 60 | 19.0 | 7182 | 2024-12-27 00:32:51 | MASTER-SAAO | (05h 00m 17.40s , +04d 52m 04.7s) | C | 60 | 19.0 | Filter C is a clear (unfiltred) band. The observation and reduction will continue. The message may be cited.