Fermi GRB 240118B: Global MASTER-Net observations report
Abstract
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 240118B ( Fermi GBM team, GCN 35562) errorbox 43321 sec after notice time and 43354 sec after trigger time at 2024-01-19 00:13:40 UT, with upper limit up to 18.5 mag. The observations began at zenith distance = 65 deg. The sun altitude is -33.7 deg. The galactic latitude b = -51 deg., longitude l = 269 deg. Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/observ.php?id=2359396 We obtain a following upper limits. Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment _________|_____________________|_____________________|____________________________________|_____|_______|_______|________ 43385 | 2024-01-19 00:13:40 | MASTER-SAAO | (03h 19m 56.04s , -54d 00m 56.6s) | C | 60 | 18.4 | 43476 | 2024-01-19 00:15:11 | MASTER-SAAO | (03h 30m 18.84s , -53d 48m 55.0s) | C | 60 | 18.3 | 43476 | 2024-01-19 00:15:11 | MASTER-SAAO | (03h 33m 26.11s , -54d 01m 50.8s) | C | 60 | 18.1 | 43556 | 2024-01-19 00:16:31 | MASTER-SAAO | (03h 06m 29.36s , -55d 42m 49.0s) | C | 60 | 18.5 | 43556 | 2024-01-19 00:16:31 | MASTER-SAAO | (03h 09m 45.21s , -55d 55m 46.4s) | C | 60 | 18.5 | 43636 | 2024-01-19 00:17:51 | MASTER-SAAO | (03h 33m 30.51s , -55d 40m 53.5s) | C | 60 | 18.1 | Filter C is a clear (unfiltred) band. The observation and reduction will continue. The message may be cited.
- Publication:
-
GRB Coordinates Network
- Pub Date:
- January 2024
- Bibcode:
- 2024GCN.35571....1L