{
  "bibcode": "2009GCN.10172....1C",
  "body": "V. Casanova (OSN), A.J. Castro-Tirado (IAA-CSIC), A. de Ugarte Postigo  \n(INAF/OAB), J. Gorosabel (IAA-CSIC), report on behalf of a larger  \ncollaboration:\n\n\"We carried out I-band observations of the GRB 091117 error box  \n(Cummings et al., GCNC 10171) with the 1.5m OSN telescope. The  \nobservations were performed on Nov 18.895-18.958 UT (27.7-29.3 hours  \npost GRB). Visual comparison with the DSS does not reveal any new  \nsource in the error box brighter than I~20.5.\"",
  "circularId": 10172,
  "createdOn": 1258587449000,
  "email": "jgu@iaa.es",
  "subject": "GRB 091117: OSN I-band observations",
  "submitter": "Javier Gorosabel at IAA-CSIC  <jgu@iaa.es>",
  "eventId": "GRB 091117"
}