LIGO/Virgo S230617ab: 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 S230617ab errorbox 42792 sec after notice time and 42885 sec after trigger time at 2023-06-17 22:45:35 UT, with upper limit up to 18.8 mag. Observations started at twilight. The observations began at zenith distance = 66 deg. The sun altitude is -13.8 deg. The galactic latitude b = 26 deg., longitude l = 73 deg. Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/ligo_1.php?id=12074 We obtain a following upper limits. Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment _________|_____________________|_____________________|____________________________________|_____|_______|_______|________ 103 | 2023-06-17 10:52:23 | MASTER- | (18h 05m 49.44s , +45d 11m 01.8s) | C | 20 | 17.9 | 143 | 2023-06-17 10:53:03 | MASTER- | (18h 05m 46.44s , +45d 12m 38.1s) | C | 20 | 17.7 | 188 | 2023-06-17 10:53:43 | MASTER- | (18h 05m 46.90s , +45d 11m 05.5s) | C | 30 | 16.4 | 243 | 2023-06-17 10:54:32 | MASTER- | (18h 05m 49.69s , +45d 12m 07.4s) | C | 40 | 18.6 | 308 | 2023-06-17 10:55:32 | MASTER- | (18h 05m 44.00s , +45d 11m 24.5s) | C | 50 | 18.7 | 388 | 2023-06-17 10:56:42 | MASTER- | (18h 05m 43.98s , +45d 12m 16.4s) | C | 70 | 18.6 | 488 | 2023-06-17 10:58:13 | MASTER- | (18h 05m 49.76s , +45d 11m 09.7s) | C | 90 | 18.0 | 608 | 2023-06-17 11:00:02 | MASTER- | (18h 05m 43.17s , +45d 09m 54.8s) | C | 110 | 18.3 | 1339 | 2023-06-17 11:11:39 | MASTER- | (14h 37m 06.90s , +74d 41m 47.3s) | C | 180 | 17.4 | 1540 | 2023-06-17 11:14:59 | MASTER- | (15h 08m 10.68s , +74d 45m 01.2s) | C | 180 | 16.3 | 1740 | 2023-06-17 11:18:20 | MASTER- | (13h 38m 47.20s , +82d 15m 47.4s) | C | 180 | 15.7 | 1941 | 2023-06-17 11:21:41 | MASTER- | (14h 41m 26.44s , +82d 18m 27.7s) | C | 180 | 17.0 | 2142 | 2023-06-17 11:25:01 | MASTER- | (14h 37m 10.66s , +74d 42m 43.7s) | C | 180 | 14.8 | 42976 | 2023-06-17 22:45:35 | MASTER-OAFA | (09h 47m 30.89s , +27d 23m 52.5s) | C | 180 | 17.9 | 43609 | 2023-06-17 22:56:08 | MASTER-OAFA | (09h 48m 58.77s , +29d 16m 00.9s) | C | 180 | 18.5 | 43821 | 2023-06-17 22:59:40 | MASTER-OAFA | (09h 58m 18.13s , +29d 16m 46.7s) | C | 180 | 18.8 | 44410 | 2023-06-17 23:09:30 | MASTER-OAFA | (09h 48m 22.99s , +30d 20m 02.2s) | C | 180 | 18.3 | 44621 | 2023-06-17 23:13:01 | MASTER-OAFA | (09h 57m 36.61s , +30d 21m 20.4s) | C | 180 | 18.7 | 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.33995....1L