LIGO/Virgo S230618s: 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 S230618s errorbox 53365 sec after notice time and 53473 sec after trigger time at 2023-06-19 00:26:29 UT, with upper limit up to 12.2 mag. The observations began at zenith distance = 73 deg. The sun altitude is -34.7 deg. The galactic latitude b = 9 deg., longitude l = 259 deg. Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/ligo_1.php?id=12106 We obtain a following upper limits. Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment _________|_____________________|_____________________|____________________________________|_____|_______|_______|________ 729 | 2023-06-18 09:45:54 | MASTER- | (17h 51m 49.23s , +08d 33m 20.4s) | C | 180 | 18.5 | 1069 | 2023-06-18 09:51:35 | MASTER- | (17h 59m 55.36s , +08d 32m 17.8s) | C | 180 | 18.6 | 1411 | 2023-06-18 09:57:17 | MASTER- | (17h 51m 47.13s , +08d 30m 60.0s) | C | 180 | 18.5 | 1758 | 2023-06-18 10:03:04 | MASTER- | (17h 59m 59.19s , +08d 31m 10.8s) | C | 180 | 18.5 | 2649 | 2023-06-18 10:17:54 | MASTER- | (17h 57m 53.00s , +10d 25m 32.8s) | C | 180 | 18.5 | 3330 | 2023-06-18 10:29:16 | MASTER- | (18h 06m 02.32s , +10d 23m 17.9s) | C | 180 | 18.3 | 4221 | 2023-06-18 10:44:06 | MASTER- | (17h 57m 57.43s , +10d 21m 56.4s) | C | 180 | 18.3 | 4904 | 2023-06-18 10:55:29 | MASTER- | (18h 06m 03.59s , +10d 22m 18.7s) | C | 180 | 18.0 | 6681 | 2023-06-18 11:25:06 | MASTER- | (17h 47m 06.59s , +06d 29m 48.5s) | C | 180 | 16.5 | 53564 | 2023-06-19 00:26:29 | MASTER-OAFA | (08h 17m 30.62s , -17d 12m 38.4s) | C | 180 | 12.3 | 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.34010....1L