GCN Circular 12990
Subject
GRB 120224A: optical observation in Mondy observatory
Date
2012-02-27T19:44:55Z (12 years ago)
From
Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
A.Volnova (SAI MSU), E. Klunko (ISTP), A. Pozanenko (IKI) on behalf of
larger GRB follow up collaboration report:
We observed the field of GRB 120224A (Saxton et al., GCN 12980) with
AZT-33IK telescope of Sayan observatory (Mondy) on Feb. 24 between (UT)
12:49:39 - 13:22:16 (mean time 8.44 hrs after burst trigger) in R filter
under mean FWHM of 4.5" and at high airmass of ~ 4 . In a combined image we
do not detect the afterglow candidate (Elliott et al., GCN 12988). A
photometry is based on the USNO-B1.0 star USNO-B1.0 0722-0043384
(02:43:36.48 -17:47:18.1) assuming R = 18.57:
:
T0+, Filter, Exposure, OT, UpperLimit (3 sigma)
(mid, d) (s)
0.3518 R 37 x 60 n/d 20.3