GCN Circular 9613
Subject
GRB 090618: Mondy optical observations
Event
Date
2009-07-04T00:32:08Z (16 years ago)
From
Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
E. Klunko (ISTP), A. Volnova (SAI MSU), A. Pozanenko (IKI) on behalf of
larger GRB follow up collaboration report:
We observed the afterglow (Schady et al., GCN 9512; Cenko et al., GCN 9513;
Perley, GCN 9514; Rujopakarn et al., GCN 9515) of the Swift GRB 090618
between (UT) Jun. 18 18:14 -- 18:43 with 1.5m telescope of Sayan
observatory (Mondy). The afterglow is detected in stacked images.
Preliminary photometry of the stacked images based on USNO-B1.0 star
1683-0077955 (RA=19 36 36.34 Dec=+78 21 07.00) assuming R=16.57 is
following:
T0+ Filter, Exposure, mag., err.
(d) (s)
0.4083 R 10x30 18.60 +/-0.10