{
  "bibcode": "2011GCN.12728....1G",
  "body": "J. Gorosabel (IAA-CSIC), P. Martorell (Obs. Guirguillano), P. Kubanek  \n(IAA-CSIC & U. Valencia),  S. Mottola (DLR, Berlin), report on behalf  \nof a larger collaboration:\n\n\"We have observed the field of GRB 111225A (Siegel et al. GCNC 12720)  \nwith the 1.23m CAHA telescope. The observations were carried out in  \nDec 25.74725 - 25.83561 UT (14.1--16.2 hours post burst) in the R-band  \nwith a total exposure time of 11x300+15x180s. We detect the optical  \nafterglow of the burst with an R-band magnitude of R=21.60+/-0.16,  \nwith respect to the USNO B1.0 catalogue.\"",
  "circularId": 12728,
  "createdOn": 1324853952000,
  "email": "jgu@iaa.es",
  "subject": "GRB 111225A: 1.23m CAHA optical observations",
  "submitter": "Javier Gorosabel at IAA-CSIC  <jgu@iaa.es>",
  "eventId": "GRB 111225A"
}