TITLE:   GCN GRB OBSERVATION REPORT
NUMBER:  2675
SUBJECT: GRB 040825B: Optical observations
DATE:    04/08/27 19:23:10 GMT
FROM:    Javier Gorosabel at LAEFF-INTA, Madrid  <jgu@laeff.esa.es>

J. Gorosabel, A. de Ugarte Postigo,
L.F. Miranda, A.J. Castro-Tirado,
M. Jelinek (IAA-CSIC, Granada, Spain),
C.B. Pereira  (ON, Rio de Janeiro, Brasil),
J.M. Castro Cerón (STScI, Baltimore, USA),
J. Aceituno (CAHA, Spain), report:

 "We have observed the field of GRB 040825B
 (GCN 2662) with the 2.2m(+CAFOS) Calar
 Alto telescope on Aug 25.8443-25.8699 UT.
 The observations were carried out in the
 R-band (Texp = 4 x 300s) and cover the
 entire GRB error box.

 Visual comparison with the DSS-2 reveals
 no variable source brighter than R~21."

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