Swift GRB 230405B: 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) was pointed to the Swift GRB 230405B ( K. L. Page et al., GCN 33571) errorbox 4283 sec after notice time and 4302 sec after trigger time at 2023-04-05 21:09:46 UT, with upper limit up to 16.0 mag. The observations began at zenith distance = 73 deg. The sun altitude is -56.4 deg. The galactic latitude b = -13 deg., longitude l = 346 deg. Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/observ.php?id=2208901 We obtain a following upper limits. Tmid-T0 | Site |Filt.| Expt. | Limit| Comment _________|_____________________|_____|_______|______|________ 4393 | MASTER-SAAO | P\\ | 180 | 16.0 | 4393 | MASTER-SAAO | P/ | 180 | 16.0 | The observation and reduction will continue. The message may be cited.
- Publication:
-
GRB Coordinates Network
- Pub Date:
- April 2023
- Bibcode:
- 2023GCN.33573....1L