GCN Circular 10198
Subject
GRB 091127: CAHA 1.23m I-band observations
Date
2009-11-28T03:25:55Z (14 years ago)
From
Javier Gorosabel at IAA-CSIC <jgu@iaa.es>
J. Gorosabel (IAA-CSIC), A. de Ugarte Postigo (INAF/OAB), V. Terron
(IAA-CSIC), M. Fernandez (IAA-CSIC), P. Kubanek (IAA-CSIC), M. Jelinek
(IAA-CSIC), report on behalf of a larger collaboration:
"We have detected the GRB 091127 optical afterglow (Smith et al. GCNC
10192; Immler et al. GCN 10193) by means of a single I-band frame
(Texp=120s) taken with the CAHA 1.23m Telescope. The observations,
carried out on Nov. 28.03862-28.04000 UT (~1.5 hours post burst) under
poor weather conditions, yielded a preliminary I-band magnitude of
I~16.4, assuming I=13.62 for the USNO-B1.0 star located at (RA,DEC) =
(02:26:21.063,-18:57:19.02; J2000)."