GCN Circular 26525
Subject
GRB 191220A: AbAO optical observations
Event
Date
2019-12-20T23:38:38Z (6 years ago)
From
Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
S. Belkin (IKI), A. Pozanenko (IKI), R. Ya. Inasaridze (AbAO), V.R.
Ayvazian (AbAO), G. V. Kapanadze (AbAO), E. Mazaeva (IKI), A.
Volnova (IKI), I. Molotov (KIAM) report on behalf of GRB IKI FuN:
We observed the field of GRB 191220A (Evans et al., GCN 26515; Laha et
al., GCN 26516) with AS-32 (0.7m) telescope of Abastumani Observatory
starting on Dec. 20 (UT) 14:40:39. We do no detect any source within
enhanced Swift-XRT position (Osborne et al., GCN 26522). In particular
we do not detect the candidate in the OT (Moskvitin, GCN 26519).
Preliminary photometry of the field is following.
Date UT start t-T0 Filter Exp. OT Err. UL
(mid, days) (s)
2019-12-20 14:40:39 0.05037 R 23*60 n/d n/d 19.8
The photometry is based on nearby USNO-B1.0 stars
UUSNO-B1.0_id R2
1166-0338499 14.74
1166-0338587 15.40
1166-0338614 15.08