[vsnet-grb-info 7633] GRB 080408A: GAO 150cm telescope Optical Observation
GCN Circulars
gcncirc at capella.gsfc.nasa.gov
Wed Apr 22 19:48:13 JST 2009
TITLE: GCN CIRCULAR
NUMBER: 9188
SUBJECT: GRB 080408A: GAO 150cm telescope Optical Observation
DATE: 09/04/22 10:47:58 GMT
FROM: Kenzo Kinugasa at Gunma Astro. Obs/Japan <kinugasa at astron.pref.gunma.jp>
K. Kinugasa, H. Takahashi, S. Honda, O. Hashimoto, H. Taguchi
(Gunma Astronomical Observatory) report:
The field of GRB 090408 (Stroh et al. GCN 9110) was observed
with the 150 cm telescope of the Gunma Astronomical Observatory.
Starting at 16:03 UT and 18.36 UT (1.03 and 2.58 hours after the
trigger), Rc and Ic frames were acquired for sets of 5 x 3-min
and 5 x 3-min exposures under a hazy sky condition.
We did not detect any new point source within the BAT error circle
to limiting magnitudes below relative to USNO-B1.0 R2 and I magnitudes.
mid-UT exp band mag.
-----------------------------------
16:12:59 5x3min Rc > 20.1
16:34:40 5x3min Ic > 19.4
27:45:46 5x3min Rc > 20.3
28:15:37 5x3min Ic > 19.3
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