{
  "bibcode": "2009GCN..9820....1G",
  "body": "J. Gorosabel (IAA-CSIC), A. de Ugarte Postigo (INAF-OAB), A. Sota (IAA- \nCSIC),  S. Guziy (IAA-CSIC),  M. Jelinek (IAA-CSIC), P. Kubanek (IAA- \nCSIC & IPL Univ. Valencia), A.J. Castro-Tirado (IAA-CSIC), report;\n\nWe performed I-band observations of the GRB 090813 optical afterglow  \n(Gorosabel et al. GCN 9782; Cenko et al. GCN 9783; Smith et al. GCN  \n9784) with the 1.5m telescope of Observatorio de Sierra Nevada. The  \nobservations were carried on Aug 13.8979 - 13.9667 UT with a total  \nexposure time of 4950 seconds. No object brigther than I = 21.9 was  \ndetected at the afterglow position.",
  "circularId": 9820,
  "createdOn": 1250521765000,
  "email": "jgu@iaa.es",
  "subject": "GRB 090813: I-band observations from 1.5m OSN telescope",
  "submitter": "Javier Gorosabel at IAA-CSIC  <jgu@iaa.es>",
  "eventId": "GRB 090813"
}