TITLE:   GCN GRB OBSERVATION REPORT
NUMBER:  1807
SUBJECT: GRB 030115, no optical candidate
DATE:    03/01/15 08:28:03 GMT
FROM:    Alberto Castro-Tirado at Inst.de Astro. de Andalucia  <ajct@iaa.es>

A. J. Castro-Tirado, J. Gorosabel, V. Casanova
and E. García-Lobo (IAA-CSIC, Granada),
J. M. Castro Cerón (ROA, San Fernando)
A. de Ugarte (Oss. Astron. di Brera),
J. Fynbo (Univ. of Aarhus)
and E. Rol (Univ. of Amsterdam)

report:


Further analysis of the 1.5-m OSN B-band images
obtained covering the GRB 030115 error box, suggests
that the optical candidate previously reported (GCN
Circ. 1805) seems to be a reddened object that is also
present in the DDS-2 (R and B). Taking into account
that there is no other obvious optical counterpart within
the HETE-2 error box down to R about 20 on Jan 15.220
UT (i.e 1h 55m after the trigger),  this GRB would be a
good candidate for an optically dim/dark burst. Deeper
optical and IR observations are encouraged.

This report can be cited.