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GCN Circular 6812

Subject
GRB 070920b: LCO optical observations
Date
2007-09-21T13:40:32Z (18 years ago)
From
Edo Berger at Carnegie Obs <eberger@ociw.edu>
E. Berger (Princeton,OCIW) and W. Krzeminski (LCO) report:

"We observed the BAT error circle of GRB 070920b (GCN 6808) with the Swope 
40-inch telescope at Las Campanas Observatory starting on 2007 Sep. 21.22 
UT (8.2 hours after the burst).  A total of 30 minutes were obtained in 
R-band in mediocre seeing conditions (~1.5").  A comparison to DSS reveals 
no new objects within the revised BAT error circle (GCN 6811)."
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