GCN Circular 26914
Subject
GRB 200127A: Mondy optical upper limit
Event
Date
2020-01-28T10:35:13Z (7 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 200127A (Moss et al., GCN 26895) with
AZT-33IK telescope of Sayan observatory (Mondy) starting on Jan. 27
(UT) 21:48:01. We do not detect any optical object within Enhanced
Swift-XRT position (Evans et al., GCN 26902) in agreement with
non-detection of an afterglow (Liu et al., GCN 26904; Fynbo et al., GCN
26913). Preliminary photometry of the field is following.
Date UT start t-T0, Filter Exp., OT Err UL(3sigma)
(days) (s)
2020-01-27 21:48:01 0.30868 R 21*120 n/d n/d 22.8
Photometry is based on the USNO-B1.0 nearby stars.
USNO-B1.0 R2
1349-0340555 18.02
1349-0340544 17.39