TITLE:   GCN GRB OBSERVATION REPORT
NUMBER:  2971
SUBJECT: GRB 050123 : I-band follow-up observation
DATE:    05/01/24 12:39:42 GMT
FROM:    Kuiyun Huang at IANCU  <d919003@astro.ncu.edu.tw>

GRB 050123 : I-band follow-up observation

Z.Y. Lin, K.Y. Huang, W.H. Ip (NCU), Y. Urata, T. Tamagawa (RIKEN),
Y. Qiu (BAO), Y.Q. Lou(THCA) on behalf of the East Asian collaboration
report:

"We have observed the GRB 050123 error range reported by Hurley et
al.(GCN 2966) using Lulin 1-m telescope at Taiwan. Our observations
with I band started from 15.87 UT to 16.72 UT (~5.49 to 5.79 hours
after the burst). These images cover 70 % error region of GRB 050123
(Hurley et al., GCN 2966).  Comparing DSS-II image, no candidate was
detected in our I band images. The average of limiting magnitude is
about 19 (S/N=3, compared with USNO-B1 I magnitude)."

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