[vsnet-grb-info 135] GRB 020322: Optical Observations

[GCN Circulars <gcncirc@lheawww.gsfc.nasa.gov>]

TITLE:   GCN GRB OBSERVATION REPORT
NUMBER:  1307
SUBJECT: GRB 020322: Optical Observations
DATE:    02/03/25 07:23:24 GMT
FROM:    Grant Williams at Steward Observatory  <ggwilli@compton.as.arizona.edu>

G. G. Williams (Steward Observatory), H. S. Park (LLNL), and
D. H. Hartmann (Clemson University)

We have obtained 10 x 600s R-Band images of the position of the candidate
afterglow of GRB 020322 (GCN 1291, 1293, 1294) using the Steward
Observatory 90-inch Bok telescope.  The data were obtained between 23 Mar
2002 09:15 UT and 23 Mar 2002 10:55 UT or 29.4 - 31.0 hours after the
burst.  Our preliminary analysis reveals that the afterglow candidate
suggested by Bloom et al. (GCN 1294) has faded below the detection limit
of our stacked image.  Using a magnitude of R = 22.0 for star "a" (GCN
1295, 1298), we find a 3-sigma upper limit of:

	R > 24.5 +/- 0.3 

A smoothed image of the field can be obtained at:

	http://compton.as.arizona.edu/data/GRB020322/grb020322both2.gif

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