[vsnet-grb-info 4685] GRB070521: P200 Observations
GCN Circulars
gcncirc at capella.gsfc.nasa.gov
Mon May 21 17:54:17 JST 2007
TITLE: GCN CIRCULAR
NUMBER: 6436
SUBJECT: GRB070521: P200 Observations
DATE: 07/05/21 08:54:12 GMT
FROM: S. Bradley Cenko at Caltech <cenko at srl.caltech.edu>
A. Rau, M. M. Kasliwal, and S. B. Cenko (Caltech) report on behalf of a
larger collabortation:
We obtained R-band photometry of GRB070521 with the Large Format
Camera mounted on the Palomar 200-inch telescope. Observations started 29
min post-burst and lasted 3x300s. Calibration was performed relative to
the SDSS (Cool et al.; GCN 6432).
We find no source in the XRT error circle (Guidorzi et al. 2007; GCN 6431)
to a limiting magnitude of R>23.3.
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