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 7271

Swift Trigger 302777 is not a GRB
2008-02-08T13:41:25Z (16 years ago)
David Palmer at LANL <>
S. D. Barthelmy (GSFC), P. J. Brown (PSU), D. N. Burrows (PSU),
J. R. Cummings (NASA/UMBC), O. Godet (U Leicester),
C. Guidorzi (INAF-OAB), S. T. Holland (CRESST/USRA/GSFC),
E. A. Hoversten (PSU), J. Mao (INAF-OAB), F. E. Marshall (NASA/GSFC),
K. L. Page (U Leicester), D. M. Palmer (LANL), A. M. Parsons (GSFC),
D. Perez (U Leicester), J. L. Racusin (PSU), M. C. Stroh (PSU) and
T. N. Ukwatta (GSFC/GWU) report on behalf of the Swift Team:

The Swift Trigger 302777, at 13:17:41 UT, is not due to a GRB. 
It is the detection of a known source (Sco X-1) at
an incorrect location due to the loss of startracker
Looking for U.S. government information and services? Visit