[vsnet-grb-info 7688] GRB 090423: Y-band field calibration update/correction
GCN Circulars
gcncirc at capella.gsfc.nasa.gov
Sat Apr 25 11:31:12 JST 2009
TITLE: GCN CIRCULAR
NUMBER: 9242
SUBJECT: GRB 090423: Y-band field calibration update/correction
DATE: 09/04/25 02:31:03 GMT
FROM: Myungshin Im at Seoul Nat U <mim at astro.snu.ac.kr>
M. Im, Y. Jeon, C. Choi, W. Park, I. Lee Seoul National Univ),
Y.-B. Jeon (KASI) and Y. Urata (NCU) on behalf of EAFON team.
The Y-band calibration data reported earlier by Im et al.
(GCN 9221) have been updated with a revised zero point,
and the catalog now includes more objects.
The updated field calibration data are available
at the same location as before:
http://astro.snu.ac.kr/~mim/grb/readme
http://astro.snu.ac.kr/~mim/grb/grb090423_ycal.dat
http://astro.snu.ac.kr/~mim/grb/yobj.reg
http://astro.snu.ac.kr/~mim/grb/chart.gif
We thank the LOAO operator, J. Yoon for his assistance for this
observation.
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