Skip to main content
Due to the lapse in federal government funding, NASA is not updating this website. See the Operations FAQ for GCN impacts.
New! Super-Kamiokande JSON Notices and Schema v4.5.0. See news and announcements

GCN Circular 29776

Subject
Swift Triggers 1042031 and 1042032 are not astrophysical events
Date
2021-04-09T14:15:25Z (4 years ago)
From
David Palmer at LANL <palmer@lanl.gov>
S. D. Barthelmy (GSFC), M. G. Bernardini (INAF-OAB),
P. D'Avanzo (INAF-OAB), N. J. Klingler (PSU), D. M. Palmer (LANL) and
T. Sbarrato (INAF-OAB) report on behalf of the Neil Gehrels Swift
Observatory Team:

At 13:44:05 UT, and again 10 minutes later, the Swift BAT instrument
saw Sco X-1 and incorrectly produced triggers (triggers=1042031, 1042032). 

We are waiting for the full data from the ground pass to determine why 
BAT produced these triggers.  However, we do not believe
that this was due to any noteworthy activity from the source.
Looking for U.S. government information and services? Visit USA.gov