[AAVSO-HEN] GRB 080229A: GAO 150cm telescope Optical Observation

[grb at aavso.org]

The following is a GCN Circular circulated via the AAVSO network.
For an archive and more information on circulars visit:
http://lheawww.gsfc.nasa.gov/docs/gamcosray/legr/bacodine/gcn3_archive.html

TITLE:   GCN CIRCULAR
NUMBER:  7407
SUBJECT: GRB 080229A: GAO 150cm telescope Optical Observation
DATE:    08/03/11 11:18:46 GMT
FROM:    Kenzo Kinugasa at Gunma Astro. Obs/Japan  <kinugasa at astron.pref.gunma.jp>

K. Kinugasa (Gunma Astronomical Observatory)  report:

 The field of GRB 080229A (Cannizzo et al. GCN 7335) was observed
with the 150 cm telescope of the Gunma Astronomical Observatory.
Starting at 18:19 UT (1.25 hours after the burst), Rc, and Ic frames
were acquired for 5 x 3-min exposures  under a poor seeing (~3.5arcsec)
condition.

 The enhaunced XRT position (Beardmore et al. GCN 7343) is close to 
a bright star, so the field are strongly contaminated  with the light 
from this star. We do not identify the optical counterpart reported
by Yoshida et al. (GCN 7341) to 3-sigma limiting magnitudes of Rc=19.3
and Ic=18.7 relative to USNO-B1.0 magnitudes.