TITLE:   GCN GRB OBSERVATION REPORT
NUMBER:  2891
SUBJECT: GRB 041219 : optical follow-up observations
DATE:    04/12/21 06:18:21 GMT
FROM:    Kuiyun Huang at IANCU  <d919003@astro.ncu.edu.tw>

GRB 041219 : optical follow-up observations

C.W. Chen (NCU), H.C. Lin (NCU), C.L. Lu (BAO)
K.Y. Huang (NCU), Y. Qiu (BAO), Y. Urata (RIKEN), Y.Q. Lou(THCA) 
on behalf of the East Asian collaboration report:
 
" We have observed the position of infrared afterglow candidate
reported by Blake et al. (GCN 2870) at Lulin (Taiwan, 1-m telescope)
and XingLong (China, 0.8 m telescope) Observatory. The R band
observations are summarized as below:

 Start Time (UTC)   Filter      Exposure (sec)  Limit mag.   Site
                                                 (SN=3)             
  Dec. 9.47           R       300 x 2 + 600 x 2   >~ 21      Lulin
  Dec. 9.48           R       300 x 1 + 360 x 1   >~ 20      XingLong
 
Limiting magnitudes were estimated by comparison with several
USNO-B1.0 stars. The candidate was not detected brighter than the
limiting magnitudes."

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