{
  "bibcode": "2006GCN..4641....1R",
  "body": "A. Retter (PSU), S. Barthelmy (GSFC), J. Cummings (GSFC/NRC),\nN. Gehrels (GSFC), S. Hunsberger (PSU), J. Kennea (PSU), H. Krimm (GSFC/USRA)\non behalf of the Swift team:\n\nAt 23:55:35 UT, Swift-BAT had an 80-sec image trigger.  And because of an\nobserving constraint, the spacecraft did not slew to the flight-derived\nlocation; and so there are no immediate XRT or UVOT data products to analyze.\nWe note that the star tracker was not in lock at the time of the trigger.\nPast experience shows that the gyros are able to maintain sufficient tracking\nto prevent drift and therefore false triggers, but it is still possible\nthat this current trigger is a false positive.  We will get the full data set\nin about 2 hours and may be able to determine the validity of this trigger\nat that time.",
  "circularId": 4641,
  "createdOn": 1139013913000,
  "email": "Scott@lheamail.gsfc.nasa.gov",
  "subject": "Swift-BAT trigger 180151 is unknown origin at this time",
  "submitter": "Scott Barthelmy at NASA/GSFC  <Scott@lheamail.gsfc.nasa.gov>"
}