LIGO/Virgo S230618r: 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 S230618r errorbox 91 sec after notice time and 149 sec after trigger time at 2023-06-18 09:09:56 UT, with upper limit up to 17.5 mag. The observations began at zenith distance = 81 deg. The sun altitude is -29.5 deg. The galactic latitude b = -28 deg., longitude l = 258 deg. Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/ligo_1.php?id=12104 We obtain a following upper limits. Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment _________|_____________________|_____________________|____________________________________|_____|_______|_______|________ 159 | 2023-06-18 09:09:56 | MASTER-OAFA | (06h 03m 46.35s , -50d 36m 58.8s) | C | 20 | 16.7 | 220 | 2023-06-18 09:10:47 | MASTER-OAFA | (06h 03m 41.23s , -50d 37m 39.3s) | C | 40 | 17.0 | 503 | 2023-06-18 09:15:04 | MASTER-OAFA | (06h 03m 40.85s , -50d 38m 32.5s) | C | 90 | 17.5 | Filter C is a clear (unfiltred) band. The observation and reduction will continue. The message may be cited.
- Publication:
-
GRB Coordinates Network
- Pub Date:
- June 2023
- Bibcode:
- 2023GCN.34005....1L