GCN Circular 13657
Subject
GRB120816A: OPTIMA discovery of optical counterpart
Event
Date
2012-08-16T21:39:46Z (13 years ago)
From
Arne Rau at MPE <arau@mpe.mpg.de>
Arne Rau and Gottfried Kanbach (both MPE Garching) report on behalf of
the OPTIMA-Burst Team:
"We observed the location of GRB 120816A (Page et al. GCN #13654) with
OPTIMA-Burst (Kanbach et al. 2008, Astrophys. and Sp. Sci. Lib. Vol.
351, 153) currently mounted at the 1.3m telescope at Skinakas
Observatory, University of Crete. Observations started at 19:22:44 UT
(249 sec after the burst) with unfiltered 20s exposures using the
field-viewing CCD camera. Within the updated XRT error circle we find a
fading source located at:
RA(J2000) = 18:48:34.4
Dec(J2000) = -06:56:16
with an approximate uncertainty of 1" in both coordinates.
We measure the following magnitudes:
T0+ white
--------------
249s ~17.8
4844s >19.1
calibrated against the R=15.2mag reference star USNO-B1.0 0830-0537586."