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GCN Circular 12517

Subject
Swift-BAT trigger 506884 is not a GRB
Date
2011-11-03T04:20:54Z (13 years ago)
From
Scott Barthelmy at NASA/GSFC <scott@milkyway.gsfc.nasa.gov>
S. D. Barthelmy (GSFC), E. A. Hoversten (PSU),
F. E. Marshall (NASA/GSFC), B. Sbarufatti (INAF-OAB/IASFPA),
M. H. Siegel (PSU) and M. C. Stroh (PSU) report on behalf of the Swift
Team:

At 03:28:08 UT 03 Nov 2011, Swift-BAT triggered as a result
of the star tracker having lost lock.  This trigger is not
due to a GRB or anything astrophysical. 

Only one GCN Notice type (the Quick_Look type that goes to robotic
telescopes) was distributed to the world.  All the rest of the notice types
were automatically blocked-to-world for Image triggers that occur
during a period of star tracker loss-of-lock.  But the Quick-Look notice
is produced before any information is received that it is an Image trigger.
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