[vsnet-grb-info 15942] GRB 141225A: 1.23m CAHA optical observations

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  17230
SUBJECT: GRB 141225A: 1.23m CAHA optical observations
DATE:    14/12/25 23:52:18 GMT
FROM:    Javier Gorosabel at IAA-CSIC  <jgu at iaa.es>

J. Gorosabel (IAA-CSIC/UPV-EHU), S. Hellmich (DLR), A. de Ugarte Postigo
(IAA-CSIC), S. Mottola (DLR), C. Thoene (IAA-CSIC), report on behalf of a
larger collaboration:

"We observed the field of GRB 141225A (D'Avanzo et al. GCN 17229) with the
1.23m CAHA telescope in the I-band starting at 23:07:27.7 UT (starting
~6.5 min post burst). We detected an optical source located at
RA(J2000)=09:15:06.93, DEC(J2000)=33:47:30.8 (+/-1") with a very
estimative magnitude of I~18.5 (Vega) consistent with the XRT position."