{
  "bibcode": "2009GCN.10269....1X",
  "body": "D. Xu (WIS, DARK/NBI), G. Leloudas, D. Malesani (DARK/NBI), P. Jakobsson\n(Univ. of Iceland), J. Lindberg, J. Andersen (NOT) report on behalf of a \nlarger collaboration:\n\nWe observed the field of GRB091208B (Pagani et al. GCN 10256; de Ugarte \nPostigo et al. GCN 10255) at the Nordic Optical Telescope equipped with \nALFOSC. The 2x300s frames were obtained starting at 20:46:43 UT on Dec. \n08th, 10.9878 hr after the burst trigger.\n\nThe magnitude of the afterglow is R~20.9 with respect to stars in the \nUSNO B1 catalog. Comparison with the measurement in Cano et al. (GCN \n10262) indicates a general decay slope of ~0.6-~0.7 in the R band.\n\n[GCN OPS NOTE(22dec09): Per author's request, the date in the 2nd sentence\nwas changed \"\"from Nov 28\" to \"Dec 8\".]",
  "circularId": 10269,
  "createdOn": 1260310236000,
  "email": "dong@astro.ku.dk",
  "subject": "GRB091208B: NOT optical observations",
  "submitter": "Dong Xu at DARK,NBI  <dong@astro.ku.dk>",
  "eventId": "GRB 091208B"
}