GCN Circular 26869
Subject
GRB 200122A: Mondy optical upper limit
Date
2020-01-24T13:19:45Z (5 years ago)
From
Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
S. Belkin (IKI), A. Pozanenko (IKI), E. Klunko (ISTP), E. Mazaeva
(IKI), A. Volnova (IKI) report on behalf of IKI-GRB-FuN:
We observed the field of GRB 200122A (Sonbas et al. GCN 26844) with
AZT-33IK telescope of Sayan observatory (Mondy) starting on Jan. 22 (UT)
20:23:25. We do not detect any optical object in the Enhanced
Swift-XRT position (Osborne et al. GCN 26846). Preliminary photometry
of the field is following.
Date UT start t-T0 Filter Exp. OT UL(3sigma)
(mid, days) (s)
2020-01-22 20:23:25 0.79876 R 30*120 n/d 23.3
Photometry is based on the USNO-B2.0 nearby stars
USNO-B1.0_id R2
1175-0271901 16.74
1174-0271881 19.69