GCN Circular 7833
Subject
GRB080605: optical observations
Event
Date
2008-06-06T04:22:14Z (17 years ago)
From
Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
V. Rumyantsev (CrAO), A. Pozanenko (IKI) report on behalf of larger GRB
follow-up collaboration:
We observed the optical afterglow (Kann, et al., GCN 7829; Holland et al.,
GCN 7830; Gomboc et al., GCN 7831) of Swift GRB 080605 (Sbarufatti et al.,
GCN 7828) in R and I bands on June 05 Zeiss-1000 (Simeiz) telescope of CrAO
observatory under not optimal weather conditions. Based on USNO-B1.0 star
RA (J2000) = 17 28 29.92, Dec.
(J2000) = +04 00 36.5, R2=15.90 we estimated brightness of the optical
afterglow in first frames:
UT, Exposure, R_mag,
(start time)
2008-06-05T23:55:58 120 s 17.9
2008-06-06T00:00:34 120 s 18.4
During observations the afterglow is clearly faded.
Coordinates of the afterglow with uncertainties of 0.3":
RA(2000): 17 28 30.01
Dec(2000): +04 00 56.4
A finding chart can be found at
http://grb.rssi.ru/GRB080605/grb080605_080605_z1000.gif
The message may be cited.