{
  "bibcode": "2006GCN..4716....1T",
  "body": "H. Terada, T.-S. Pyo (Subaru Telescope, NAOJ), N. Kobayashi\n(University of Tokyo) and N. Kawai (Tokyo Tech) report:\n\n\"Near-infrared photometry of the afterglow of GRB 060206\n(Morris et al., GCN #4682) in the J, K'-bands was performed with IRCS\n(Infrared Camera and Spectrograph) on the SUBARU Telescope at February\n7.5 UT. An average seeing was 0.5 arcsec in the J-band and 0.3 arcsec\nin the K'-band. \n \nThe magnitude of the afterglow was J=18.77 +/ -0.04 at 10:38-11:04 UT\n(t=30.1 hr) and K'=17.78 +/ -0.01 at 13:37-14:30 UT (t=33.3 hr). The\nnear-infrared decay index of the afterglow is estimated to be -1.11 in\nthe J-band and -1.22 in the K'-band from comparison with the earlier\nreport (J=15.96 and Ks=14.54 at t=2.9 hr, GCN #4702).\"\n\nThis message may be cited.",
  "circularId": 4716,
  "createdOn": 1139468927000,
  "email": "terada@naoj.org",
  "subject": "GRB 060206: near-infrared observations (JK' imaging)",
  "submitter": "Hiroshi TERADA at Subaru Telescope,NAOJ  <terada@naoj.org>",
  "eventId": "GRB 060206"
}