{
  "subject": "GRB 081001: Observations from OSN",
  "circularId": 8310,
  "editedOn": 1731923679526,
  "bibcode": "2008GCN..8310....1D",
  "eventId": "GRB 081001",
  "body": "A. de Ugarte Postigo (ESO, Santiago), F. Aceituno, M. Jelínek,\nJ. Gorosabel and A.J. Castro-Tirado (IAA-CSIC, Granada) on\nbehalf of a larger collaboration report,\n\nWe have observed the field of the SuperAGILE GRB 081001\n(Lazzarotto et al., GCN 8305) and in particular the Swift/XRT\nerror box (Page et al., GCN 8307) from the 1.5m OSN telescope\nat Sierra Nevada Observatory in Granada (Spain). The\nobservation consisted of 3x300s I-band exposures with a mean\ntime of Oct 2.8348 UT (22.7 hours after the burst). We detect just\none source on the edge of the XRT error box, located at the\nfollowing coordinates (J2000 +/- 0.7\"):\nR.A.: 18:26:21.65\nDec.: -08:43:07.6\nWith a magnitude of I = 19.90+/-0.26 as compared to several\nUSNO-B1 stars. A finding chart (with the object is marked as A)\ncan be found in:\nhttp://www.sc.eso.org/~adeugart/GRB/081001/081001.gif\nNo variability can be established at this point. Rechecking of the\nunfiltered image reported by Jelínek et al. (GCN 8306) does not\nshow any significant emission at the location of the object. Further\nobservations would be needed in order to determine any relation\nof this source with the GRB.",
  "version": 2,
  "format": "text/plain",
  "email": "deugarte@iaa.es",
  "submitter": "Antonio Deugarte at IAA-CSIC  <deugarte@iaa.es>",
  "createdOn": 1222997377000,
  "editedBy": "Judith Racusin at NASA/GSFC <judith.racusin@nasa.gov> on behalf of Leo P. Singer at NASA/GSFC <leo.p.singer@nasa.gov>"
}