LIGO/Virgo S230620al: Global MASTER-Net observations report
Abstract
MASTER-OAFA robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in Argentina (OAFA observatory of San Juan National University) started inspect of the LIGO/Virgo S230620al errorbox 52 sec after notice time and 151 sec after trigger time at 2023-06-20 05:57:26 UT, with upper limit up to 17.1 mag. The observations began at zenith distance = 73 deg. The sun altitude is -70.4 deg. The galactic latitude b = 33 deg., longitude l = 62 deg. Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/ligo_1.php?id=12194 We obtain a following upper limits. Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment _________|_____________________|_____________________|____________________________________|_____|_______|_______|________ 167 | 2023-06-20 05:57:26 | MASTER-OAFA | (17h 19m 49.60s , +37d 25m 48.5s) | C | 30 | 17.1 | 233 | 2023-06-20 05:58:28 | MASTER-OAFA | (17h 19m 43.74s , +37d 25m 17.5s) | C | 40 | 17.1 | Filter C is a clear (unfiltred) band. The observation and reduction will continue. The message may be cited.
- Publication:
-
GRB Coordinates Network
- Pub Date:
- June 2023
- Bibcode:
- 2023GCN.34038....1L