GCN Circular 9236
Subject
GRB 090424: Optical observations from 1.23m CAHA
Date
2009-04-24T22:59:07Z (15 years ago)
From
Javier Gorosabel at IAA-CSIC <jgu@iaa.es>
J. Gorosabel, P. Kubanek , M. Jelinek (IAA-CSIC), A. de Ugarte
Postigo (ESO),
J. Aceituno (CAHA), report on behalf of a larger collaboration:
We have observed the field of GRB 090424 (Cannizzo et al., GCN 9223)
with
the 1.23m telescope at Calar Alto. The afterglow is clearly detected
in BVRI-bands.
On April 24.87 UT the afterglow showed a magnitude of R = 19.3 +/-
0.1, as
compared to stars from the USNO-B1.0.
Calar Alto is operated jointly by MPIA and IAA-CSIC.
Further observations are ongoing.