GRB 220210A: Mondy, AbAO and Terskol optical upper limits
Abstract
We observed the field of Swift/BAT-GUANO localization (Tohuvavohu et al., GCN 31572) of GRB 220210A (Fermi GBM team, GCN 31568) with AZT-33IK telescope of Mondy observatory, AS-32 telescope of Abastumani observatory, and Zeiss-2000 telescope in R-filter. Within localization area (Tohuvavohu et al., GCN 31572) we do not detect evident candidate in comparison with SDSS DR12 catalogue. The object reported by BOOTES team (Carrasco-Garcia et al., GCN 31573) is clearly visible in all of our observations and do not show significant variability with R= 20.17 +/- 0.14 (0.54116 d), R= 20.05 +/- 0.13 (0.72701 d), and R=20.14 +/- 0.13 (0.77438 d). This highly reddened object visible in DDS-2 Infrared Survey (Carrasco-Garcia et al., GCN 31574) is also presented in SDSS DR12 as a star-like very red object with r=21.187. Preliminary photometry of the field is following Date UT start t-T0 Filter Exp. OT Err UL(3sigma) Telescope 2022-02-11 12:32:54 0.54116 R 23*120 n/d n/d 22.7 AZT-33IK 2022-02-11 16:58:32 0.72701 R 50*60 n/d n/d 21.9 AS-32 2022-02-11 19:41:36 0.77438 R 35*180 n/d n/d 22.2 Zeiss-2000 The photometry is based on the nearby USNO-B1.0 stars RA DEC R2 RA DEC R2 345.7846139 61.8542256 14.69 345.7584140 61.8282804 17.76
- Publication:
-
GRB Coordinates Network
- Pub Date:
- February 2022
- Bibcode:
- 2022GCN.31586....1P