Fermi trigger No 746684112: 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 GRB240830.18 (trigger No 746684112,20h 57m 16.80s , +65d 06m 36.0s, R=50) errorbox 25893 sec after notice time and 25925 sec after trigger time at 2024-08-30 11:27:13 UT, with upper limit up to 16.6 mag. Observations started at twilight. The observations began at zenith distance = 41 deg. The sun altitude is -11.0 deg. The galactic latitude b = 13 deg., longitude l = 102 deg. Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/observ.php?id=2581388 We obtain a following upper limits. Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment _________|_____________________|_____________________|____________________________________|_____|_______|_______|________ 25956 | 2024-08-30 11:27:13 | MASTER-Amur | (13h 51m 38.47s , +56d 11m 37.4s) | C | 60 | 15.7 | 25956 | 2024-08-30 11:27:13 | MASTER-Amur | (13h 38m 12.84s , +55d 45m 03.2s) | C | 60 | 15.5 | 26129 | 2024-08-30 11:30:06 | MASTER-Amur | (00h 46m 55.28s , +77d 13m 08.0s) | C | 60 | 16.6 | 26129 | 2024-08-30 11:30:06 | MASTER-Amur | (01h 18m 59.38s , +77d 38m 40.8s) | C | 60 | 16.4 | Filter C is a clear (unfiltred) band. The observation and reduction will continue. The message may be cited.