Fermi GRB 240828A: Global MASTER-Net observations report

MASTER-Amur robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in Russia (Blagoveshchensk State Pedagogical University) started inspect of the Fermi GRB 240828A ( Fermi GBM team, GCN 37317) errorbox 140 sec after notice time and 176 sec after trigger time at 2024-08-28 14:58:02 UT, with upper limit up to 15.9 mag. The observations began at zenith distance = 74 deg. The sun altitude is -30.0 deg. The galactic latitude b = 66 deg., longitude l = 60 deg. Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/observ.php?id=2579196 We obtain a following upper limits. Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment _________|_____________________|_____________________|____________________________________|_____|_______|_______|________ 196 | 2024-08-28 14:58:02 | MASTER-Amur | (14h 39m 23.80s , +35d 19m 54.3s) | P/ | 40 | 15.1 | 196 | 2024-08-28 14:58:03 | MASTER-Amur | (14h 39m 04.59s , +35d 42m 17.2s) | P\ | 40 | 15.0 | 257 | 2024-08-28 14:59:03 | MASTER-Amur | (14h 39m 23.90s , +35d 19m 55.4s) | P/ | 40 | 15.1 | 257 | 2024-08-28 14:59:03 | MASTER-Amur | (14h 39m 04.69s , +35d 42m 19.9s) | P\ | 40 | 15.3 | 329 | 2024-08-28 15:00:05 | MASTER-Amur | (14h 39m 24.07s , +35d 19m 57.8s) | P/ | 60 | 15.1 | 329 | 2024-08-28 15:00:05 | MASTER-Amur | (14h 39m 04.80s , +35d 42m 23.7s) | P\ | 60 | 15.2 | 417 | 2024-08-28 15:01:28 | MASTER-Amur | (14h 39m 24.26s , +35d 20m 00.2s) | P/ | 70 | 15.4 | 417 | 2024-08-28 15:01:28 | MASTER-Amur | (14h 39m 04.89s , +35d 42m 27.4s) | P\ | 70 | 14.5 | 519 | 2024-08-28 15:03:00 | MASTER-Amur | (14h 39m 04.99s , +35d 42m 33.0s) | P\ | 90 | 14.6 | 519 | 2024-08-28 15:03:00 | MASTER-Amur | (14h 39m 24.53s , +35d 20m 04.7s) | P/ | 90 | 14.5 | 640 | 2024-08-28 15:04:51 | MASTER-Amur | (14h 39m 24.82s , +35d 20m 08.4s) | P/ | 110 | 14.7 | 640 | 2024-08-28 15:04:51 | MASTER-Amur | (14h 39m 05.09s , +35d 42m 38.4s) | P\ | 110 | 14.9 | 787 | 2024-08-28 15:07:03 | MASTER-Amur | (14h 39m 25.20s , +35d 20m 15.8s) | P/ | 140 | 14.9 | 787 | 2024-08-28 15:07:03 | MASTER-Amur | (14h 39m 05.32s , +35d 42m 47.3s) | P\ | 140 | 15.0 | 962 | 2024-08-28 15:09:44 | MASTER-Amur | (14h 39m 25.71s , +35d 20m 24.5s) | P/ | 170 | 15.9 | 962 | 2024-08-28 15:09:44 | MASTER-Amur | (14h 39m 05.65s , +35d 42m 57.7s) | P\ | 170 | 15.7 | 1159 | 2024-08-28 15:12:56 | MASTER-Amur | (14h 39m 26.35s , +35d 20m 34.9s) | P/ | 180 | 15.5 | 1160 | 2024-08-28 15:12:56 | MASTER-Amur | (14h 39m 06.13s , +35d 43m 10.6s) | P\ | 180 | 15.6 | 1360 | 2024-08-28 15:16:16 | MASTER-Amur | (14h 39m 26.92s , +35d 20m 46.7s) | P/ | 180 | 15.5 | 1360 | 2024-08-28 15:16:16 | MASTER-Amur | (14h 39m 06.57s , +35d 43m 23.0s) | P\ | 180 | 15.6 | The observation and reduction will continue. The message may be cited.