Skip to main content
Testing. You are viewing the public testing version of GCN. For the production version, go to
New Announcement Feature, Code of Conduct, Circular Revisions. See news and announcements

GCN Circular 5825

GRB061121: Keck spectroscopic observations
2006-11-21T15:47:09Z (18 years ago)
Daniel Perley at U.C. Berkeley <>
D. A. Perley and J. S. Bloom report,

On the night of 21 November 2006 (UT), we began spectroscopic 
observations of GRB061121 at 15:35 UT using Keck I (+LRIS).  The optical 
afterglow is visible in the finder camera in early twilight and is 
detected in 120-second spectroscopic exposures down to the atmospheric 
cutoff.  Strong absorption features are observed.  Observations are 
Looking for U.S. government information and services? Visit