[vsnet-grb-info 3146] GRB 060218 : IR afterglow observations

[GCN Circulars]

TITLE:   GCN GRB OBSERVATION REPORT
NUMBER:  4983
SUBJECT: GRB 060218 : IR afterglow observations
DATE:    06/04/20 09:01:02 GMT
FROM:    Yuji Urata at RIKEN  <urata at crab.riken.go.jp>

K. Y. Huang, W.H. Ip(NCU), Y. Urata (Saitama-U) 
on behalf of EAFON report:

" We performed IR follow-up observations with CFHT/WIRCam from 8 hours
after the GRB. The afterglow was detected in JHKs bands clearly. The
afterglow brightness estimated from 2MASS catalog is Ks = 16.8 +/-0.1
at 8.11 hours after the burst. During our observational period, the
decay index is about 1 in Ks band. "

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