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TITLE: GCN GRB OBSERVATION REPORT
NUMBER: 2436
SUBJECT: Lulin optical follow-up observations of GRB031026
DATE: 03/10/30 07:32:59 GMT
FROM: Kuiyun Huang at IANCU <d919003@astro.ncu.edu.tw>
GCN Circular
Title: Lulin optical follow-up observations of GRB031026
A.C. Chen, H.C. Ting, H.C. Lin, K.Y. Huang, D. Kinoshita,W.H. Ip(NCU)
Y. Urata and T. Tamagawa (RIKEN) report:
"We have observed the entire region of HETE-2 error circle of
GRB031026 (N. Butler et al. GCN2429) with 1.0-m telescope Lulin
observatory (Institute of Astronomy, National Central University,
Taiwan) at 26.48-26.72 Oct 2003, corresponding 6-12 hours after the
burst. We have imaged 9 fields by CCD camera (10'x10' field of view).
These average limiting magnitudes is about 20.9 (SN=3, compared with
USNO-A2.0 red magnitudes). Comparing with Digitized Sky Survey (DSS2)
image, there are no new object down to the limiting magnitude."
The observation is summarized as follows:
---------------------------------------------------------------------
Field RA DEC Start filter Exp.(sec) Limit mag.
time(UT)
1 03:17:55.5 +28:31:40 11:33 R 300 x 3 21.2
2 03:17:56.8 +28:21:41 11:57 R 300 x 3 20.5
3 03:17:58.1 +28:11:42 12:23 R 300 x 3 20.0
4 03:19:27.2 +28:22:14 12:42 R 300 x 3 20.3
5 03:19:26.0 +28:32:13 13:01 R 300 x 3 21.1
6 03:19:28.4 +28:12:15 13:20 R 300 x 3 21.2
7 03:18:42.0 +28:21:58 17:02 R 300 x 1 21.3
8 03:18:40.8 +28:31:57 17:09 R 300 x 1 20.9
9 03:18:43.2 +28:11:59 17:18 R 300 x 1 21.5
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