TITLE:   GCN GRB OBSERVATION REPORT
NUMBER:  4230
SUBJECT: GRB 051109A : Lulin BVRI Optical afterglow observation
DATE:    05/11/09 17:49:22 GMT
FROM:    Yuji Urata at RIKEN  <urata@crab.riken.go.jp>

GRB 051109A : Lulin BVRI Optical afterglow observation

F.Y. Huang, K.Y. Huang, W.H. Ip (NCU), Y. Urata(RIKEN),
Y. Qiu (BAO), Y.Q. Lou (THCA) on behalf of EAFON report:

"We have observed GRB 051109A afterglow (Rykoff et al. GCN4211) using
Lulin 1-m telescope from 9.59 to 13.34 hours after ther burst. The
afterglow was detected in our B,V,R,I band images. The R band
magnitude of afterglow at 10.97 UT is estimated as R=20.3 calibrated
against USNO-B1.0 catalog.

Further analysis is in progress.

This message may be cited."