[vsnet-grb-info 4717] Swift Triggers 280477, 280450 and 280451 are invalid

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  6464
SUBJECT: Swift Triggers 280477, 280450 and 280451 are invalid
DATE:    07/05/26 09:54:59 GMT
FROM:    Scott Barthelmy at NASA/GSFC  <scott at lheamail.gsfc.nasa.gov>

S. D. Barthelmy (GSFC), A. P. Beardmore (U Leicester),
G. Cusumano (INAF-IASFPA), V. Mangano (INAF-IASFPA),
P. T. O'Brien (U Leicester), J. P. Osborne (U Leicester),
C. Pagani (PSU), D. M. Palmer (LANL),
P. Romano (Univ. Bicocca & INAF-OAB), B. Sbarufatti (INAF-IASFPA),
R. L. C. Starling (U Leicester), G. Tagliaferri (INAF-OAB),
D. E. Vanden Berk (PSU) and H. Ziaeepour (UCL-MSSL) report on behalf
of the Swift Team:

Due to a loss of star tracker lock, triggers
280477, 280450 and 280451 were due to known
sources and are not new transients or GRBs. 

GCN# 6463 (Marshall et al.) re. trigger 280477
is retracted.