[vsnet-grb-info 2382] GRB 051109: Rc and Ic observations

[GCN Circulars]

TITLE:   GCN GRB OBSERVATION REPORT
NUMBER:  4219
SUBJECT: GRB 051109: Rc and Ic observations
DATE:    05/11/09 06:14:38 GMT
FROM:    Ken ichi Torii at RIKEN  <torii at ess.sci.osaka-u.ac.jp>

K. Torii (Osaka U.) reports:

 The error region of GRB 051109 (Tagliaferri et al. GCN 4213) was
observed by the 0.3 m telescopes in the New Mexico Skies
Observatory. Starting at 01:17:46 UT (326 s after the burst), 120 s
exposures in Ic band was obtained. We also observed the field in Rc
band (120 s exposures) with another 0.3 m telescope at the same site,
starting at 01:29:39 UT.

 As a result of the preliminary analysis, the optical afterglow
(Rykoff et al. GCN 4211) is detected in Ic band as follows, relative
to USNO-B1.0 I magnitude.

------------------------------------------
StartUT	Filter	Mag	Nframes
------------------------------------------
01:25:25 Ic	16.6	1
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