{
  "bibcode": "2007GCN..6925....1K",
  "body": "G. Kornienko, A. Erofeeva (UAFO), A. Pozanenko (IKI) on behalf of larger GRB \nfollow up collaboration report:\n\nWe observed the error box of  GRB071013  (Marshall  et al., GCN 6907) on \nOct.13 with SR-22 telescope of UAFO observatory. A set of 50 unfiltered \nimages of 60 s exposure was obtained starting (UT) 12:33:04.  In images \nbetween 12:39:04 - 12:49:04 we observed an object at the position RA(J2000) \n= 18:37:49.1 Dec(J2000)= +33:50:25 with uncertainties of 3\" in both \ncoordinates. The object is not visible before and after this time \n(UT)12:39:04 - 12:49:04. The object is in refined BAT error circle (Palmer \net al., GCN 6911). Based on nearby USNO-A2.0 stars we estimate brightness of \nthe object as R~18.2.\n\nThe source of USNO-B1.0 1238-0299614  (RA(J2000)=18 37 48.84  Dec(J2000)= \n+33 50 26.7)  sits close  (or coincides) to our object and it has R2=19.6. \nThe photometry of the source in deep TLS observation (Kann et al., GCN 6917) \nis R=19.5 (Kann, private communication). If the USNO-B1.0 1238-0299614 \nsource is a galaxy, then the afterglow may be masked of the galaxy in later \ntimes. At this time we cannot confirm the nature of  the found object and we \nencourage to refine observations at the same period (Xin et al., GCN 6908).\n\nThe message may be cited.",
  "circularId": 6925,
  "createdOn": 1192561063000,
  "email": "apozanen@iki.rssi.ru",
  "subject": "GRB071013: optical observations",
  "submitter": "Alexei Pozanenko at IKI, Moscow  <apozanen@iki.rssi.ru>",
  "eventId": "GRB 071013"
}