GCN Circular 33189
Subject
GRB 230116D: Sintez-Newton/CrAO optical observations
Date
2023-01-17T19:01:13Z (a year ago)
From
Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
S. Belkin (IKI, HSE), S. Nazarov (CrAO), A. Pozanenko (IKI), N. Pankov
(HSE, IKI) report on behalf of GRB IKI FuN:
We observed the optical afterglow (Zhu et al., GCN 33177; Nazarov et
al., GCN 33178; Moskvitin et al. GCNs 33179, 33187; Swain et al., GCN
33182) of GRB 230116D (Sonbas et al., GCN 33176) with Sintez-Newton
telescope of CrAO observatory. Observation started on 2023-01-16 (UT)
21:21:41. The series consist of images with an exposure of 120 s in
Clear filter. Preliminary photometry of the stacked images is following
Date UT-start Exptime Filter t-T0 OT Err UL
2023-01-16 21:23:55 35*120 Clear 0.03764 19.82 0.08 22.5
2023-01-16 22:44:52 33*120 Clear 0.09245 19.97 0.16 21.9
Ref.stars
USNO-B1.0
RA DEC R2
06:34:04.9708800 +49:53:05.863200 15.61
06:34:38.7820800 +49:49:22.972800 16.29
06:34:57.9967200 +49:53:01.932000 16.94
06:34:24.5268000 +49:47:49.801200 15.68