[vsnet-grb-info 5772] Swift Trigger 306616 is not a GRB

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  7424
SUBJECT: Swift Trigger 306616 is not a GRB
DATE:    08/03/17 23:46:25 GMT
FROM:    David Palmer at LANL  <palmer at lanl.gov>

S. D. Barthelmy (GSFC), W. H. Baumgartner (GSFC/UMBC),
A. P. Beardmore (U Leicester), M. M. Chester (PSU),
S. T. Holland (CRESST/USRA/GSFC), J. A. Kennea (PSU),
H. A. Krimm (GSFC/USRA), C. B. Markwardt (CRESST/GSFC/UMD),
K. L. Page (U Leicester), D. M. Palmer (LANL),
M. Stamatikos (NASA/ORAU), E. Troja (U Leicester/INAF-IASFPA) and
T. N. Ukwatta (GSFC/GWU) report on behalf of the Swift Team:

Shortly before 23:31:57 UT, Swift lost star tracker lock.  This
caused the Burst Alert Telescope (BAT) to detect Sco X-1 at the
wrong location, leading to trigger 306616.  This is not a GRB. 

Star tracker recovery operations are in progress.