{
  "bibcode": "2006GCN..5870....1E",
  "body": "Yu. Efimov, V. Rumyantsev (CrAO), A. Pozanenko (IKI) on behalf of larger GRB\nfollow up collaboration report:\n\nWe observed an afterglow GRB061121 (Page et al., GCN 5823; Yost et al., GCN\n5824)  with Shajn 2.6m telescope of CrAO on Nov. 24. A photometry of the\nafterglow  in a combined image  is following:\n\nMid time   Exposure,  R_mag,    Lim_mag (3 sigma)\n(UT)          s\n\nNov. 24.0823   41x120  21.96 +/- 0.07 23.6\n\nThe photometry is based on  the same calibration as in our previous GCN\n5850.  A power-law decay index between Nov. 23.1040 observation (Efimov et\nal., GCN 5850) and Nov. 24.0823 (this circular) is 1.06 and compatible with\nthe index reported in GCN 5847 (Halpern et al.) for early afterglow decay.\n\nThis message may be cited.",
  "circularId": 5870,
  "createdOn": 1164627189000,
  "email": "apozanen@iki.rssi.ru",
  "subject": "GRB061121: optical observations",
  "submitter": "Alexei Pozanenko at IKI, Moscow  <apozanen@iki.rssi.ru>",
  "eventId": "GRB 061121"
}