Fermi GRB 210622B: 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 Fermi GRB 210622B ( Fermi GBM team, GCN 30298) errorbox 43469 sec after notice time and 43496 sec after trigger time at 2021-06-22 22:37:57 UT, with upper limit up to 17.8 mag. Observations started at twilight. The observations began at zenith distance = 56 deg. The sun altitude is -12.0 deg. The galactic latitude b = 15 deg., longitude l = 237 deg. Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/observ.php?id=1642370 We obtain a following upper limits. Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment _________|_____________________|_____________________|____________________________________|_____|_______|_______|________ 43526 | 2021-06-22 22:37:57 | MASTER-OAFA | (08h 14m 05.24s , -14d 37m 45.1s) | C | 60 | 17.4 | 43605 | 2021-06-22 22:39:17 | MASTER-OAFA | (08h 22m 14.70s , -14d 38m 34.0s) | C | 60 | 17.4 | 43685 | 2021-06-22 22:40:36 | MASTER-OAFA | (08h 25m 46.77s , -12d 42m 57.2s) | C | 60 | 17.6 | 43767 | 2021-06-22 22:41:58 | MASTER-OAFA | (08h 33m 57.71s , -12d 44m 12.9s) | C | 60 | 17.8 | 43847 | 2021-06-22 22:43:18 | MASTER-OAFA | (08h 10m 11.95s , -12d 43m 46.8s) | C | 60 | 17.8 | 43926 | 2021-06-22 22:44:37 | MASTER-OAFA | (08h 18m 21.69s , -12d 42m 35.5s) | C | 60 | 17.8 | 44006 | 2021-06-22 22:45:57 | MASTER-OAFA | (08h 29m 39.40s , -14d 38m 20.6s) | C | 60 | 17.6 | 44085 | 2021-06-22 22:47:17 | MASTER-OAFA | (08h 38m 00.16s , -14d 38m 01.8s) | C | 60 | 17.8 | 44165 | 2021-06-22 22:48:36 | MASTER-OAFA | (08h 18m 29.20s , -16d 32m 12.2s) | C | 60 | 17.7 | 44244 | 2021-06-22 22:49:56 | MASTER-OAFA | (08h 26m 51.96s , -16d 30m 43.5s) | C | 60 | 17.6 | 44783 | 2021-06-22 22:58:54 | MASTER-OAFA | (08h 14m 00.60s , -14d 36m 33.1s) | C | 60 | 17.8 | 44862 | 2021-06-22 23:00:14 | MASTER-OAFA | (08h 22m 20.98s , -14d 37m 22.9s) | C | 60 | 17.7 | 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 2021
- Bibcode:
- 2021GCN.30307....1L