Fermi GRB 240404A: 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 240404A ( Fermi GBM team, GCN 36020) errorbox 1191 sec after notice time and 1229 sec after trigger time at 2024-04-04 02:58:34 UT, with upper limit up to 18.5 mag. The observations began at zenith distance = 10 deg. The sun altitude is -24.8 deg. The galactic latitude b = 7 deg., longitude l = 357 deg. Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/observ.php?id=2414151 We obtain a following upper limits. Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment _________|_____________________|_____________________|____________________________________|_____|_______|_______|________ 1260 | 2024-04-04 02:58:34 | MASTER-SAAO | (16h 31m 03.20s , -27d 28m 14.7s) | C | 60 | 18.5 | Filter C is a clear (unfiltred) band. The observation and reduction will continue. The message may be cited.
- Publication:
-
GRB Coordinates Network
- Pub Date:
- April 2024
- Bibcode:
- 2024GCN.36021....1L