LIGO/Virgo S230621bq: Global MASTER-Net observations report
Abstract
MASTER-Kislovodsk robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in Russia (Lomonosov MSU, Kislovodsk Solar Station of Pulkovo observatory) started inspect of the LIGO/Virgo S230621bq errorbox 15 sec after notice time and 785 sec after trigger time at 2023-06-22 00:00:48 UT, with upper limit up to 17.4 mag. Observations started at twilight. The observations began at zenith distance = 62 deg. The sun altitude is -13.1 deg. The galactic latitude b = -16 deg., longitude l = 144 deg. Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/ligo_1.php?id=12218 We obtain a following upper limits. Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment _________|_____________________|_____________________|____________________________________|_____|_______|_______|________ 865 | 2023-06-22 00:00:48 | MASTER-Kislovodsk | (02h 45m 42.84s , +41d 55m 00.9s) | C | 160 | 17.0 | 1056 | 2023-06-22 00:03:48 | MASTER-Kislovodsk | (02h 45m 43.00s , +41d 53m 31.6s) | C | 180 | 17.4 | 1256 | 2023-06-22 00:07:09 | MASTER-Kislovodsk | (02h 45m 45.48s , +41d 55m 03.9s) | C | 180 | 16.7 | Filter C is a clear (unfiltred) band. The observation and reduction will continue. The message may be cited.
- Publication:
-
GRB Coordinates Network
- Pub Date:
- June 2023
- Bibcode:
- 2023GCN.34063....1L