[vsnet-grb-info 6779] Trigger 331721 Due to Swift startracker loss-of-lock

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  8376
SUBJECT: Trigger 331721 Due to Swift startracker loss-of-lock
DATE:    08/10/15 10:45:09 GMT
FROM:    David Palmer at LANL  <palmer at lanl.gov>

P. A. Evans (U Leicester), O. Godet (U Leicester),
S. T. Holland (CRESST/USRA/GSFC), J. A. Kennea (PSU),
H. A. Krimm (CRESST/GSFC/USRA), N. P. M. Kuin (MSSL),
J. Mao (INAF-OAB), P. T. O'Brien (U Leicester),
K. L. Page (U Leicester), D. M. Palmer (LANL),
P. Romano (INAF-IASFPA), M. Stamatikos (NASA/ORAU),
E. Troja (INAF-IASFPA) and T. N. Ukwatta (GSFC/GWU) report on behalf
of the Swift Team:

At ~9:50 UT on 2008-10-15 the Swift star tracker lost lock.  
As a result, a subsequent pointing could not correctly identify 
a source in the the Field of View causing a spurious BAT 
trigger (#331721).  This is not a GRB. 

Recovery operations are underway.