GCN Circular 4843
Subject
GRB060218/SN 2006aj: optical observation in V
Event
Date
2006-02-28T10:49:31Z (20 years ago)
From
Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
M. Andreev (Institute of Astronomy), E. Pavlenko (CrAO), A. Pozanenko
(IKI) on behalf of larger GRB follow up collaboration report:
We observed GRB 060218/SN 2006aj (Cusumano et al. GCN 4775) in V-band with
the 60 cm telescope of peak Terskol observatory on Feb. 22 and Feb. 23. A
series of 60 s exposures were taken in both epochs.
Using SDSS pre-burst observations (Cool et al. GCN 4777) we estimate
brightness of the optical afterglow + SN:
Mid time, exp., V mag
(UT) (s)
Feb.22 17:08 147x60 s 18.00 +/- 0.01
Feb.23 18:20 12x60 s 17.82 +/- 0.03
The brightening rate in V between Feb. 22 and Feb. 23 is 0.16m per day.