{
  "bibcode": "2006GCN..4842....1P",
  "body": "E. Pavlenko,  Yu. Efimov, A. Shlyapnikov, V.Rumyantsev (CrAO), A.Pozanenko\n(IKI) on behalf of a larger collaboration report:\n\nWe observed GRB 060218/SN 2006aj  (Cusumano et al. GCN 4775) with CrAO Shajn\n2.6m telescope  on Feb. 23. A series of   BVRI 30 s exposures were taken\nstarting (UT) 19:27.\n\nUsing SDSS pre-burst observations (Cool et al. GCN 4777) we estimate\nbrightness of the optical afterglow + SN in R:\n\n\nMid  time,      exp.,   R mag\n(UT)            (s)\nFeb.23  19:32  8x30 s   17.40 +/- 0.01\nFeb.23  19:58  8x30 s   17.41 +/- 0.01\n\nThe values is compatible with the brightening rate ~0.2 per day between Feb.\n20 and Feb. 23 reported earlier (Ovaldsen et al, GCN 4818, Pavlenko et al,\nGCN 4838).",
  "circularId": 4842,
  "createdOn": 1141123469000,
  "email": "apozanen@iki.rssi.ru",
  "subject": "GRB060218/SN 2006aj:   optical observation",
  "submitter": "Alexei Pozanenko at IKI, Moscow  <apozanen@iki.rssi.ru>",
  "eventId": "GRB 060218"
}