{
  "bibcode": "2008GCN..8722....1V",
  "body": "A. Volnova (SAI MSU), I. Korobtsev (ISTP),  A. Pozanenko (IKI), E. Klunko \n(ISTP), N. Bochkarev (SAI MSU), E. Karitskaja (Institute of Astronomy),  on \nbehalf of larger  GRB follow up collaboration  report:\n\nWe observed the afterglow of GRB 080810 (Page et al. GCN 8080) with 1.5  m \ntelescope of Sayan observatory (Mondy) under good weather  conditions. \nSeries of R and B images were obtained between Aug. 10 (UT) \n16:50:03 -18:17:06.  While we clearly detect afterglow in single R images, \nthe afterglow is not detected in a combined image obtained in B. A \nphotometry of the combined images is based on several SDSS nearby stars:\n\n  T0+         Filter  Exp.    mag.           Upper_Limit seeing\n mid., days                                 (3 sigma)\n\n  0.1599      B      14x60    n/d            19.26      ~2.7\"\n  0.1786      R      30x60   17.98 +/- 0.13  20.85      ~2.2\"\n  0.2026      R      30x60   18.10 +/- 0.17  21.14      ~2.0\"\n\nThe photometry in R-band is an agreement with power law decay index of \nlight curve (alpha = 1.12) between 400 s and 1 day after the burst  reported \nby Thoene et al (GCN 8106).",
  "circularId": 8722,
  "createdOn": 1230128514000,
  "email": "apozanen@iki.rssi.ru",
  "subject": "GRB 080810: optical observations",
  "submitter": "Alexei Pozanenko at IKI, Moscow  <apozanen@iki.rssi.ru>",
  "eventId": "GRB 080810"
}