{
  "bibcode": "2014GCN.16378....1K",
  "body": "J. A. Kennea and D. N. Burrows (PSU) report on behalf of the Swift/XRT\nteam:\n\nAt 17:58UT on June 10th, 2014, Swifts X-ray Telescope (XRT) was commanded \ninto Auto State, returning it to a normal observing setup. The mode of XRT \noperations described by GCN #16356 no longer applies. This means that \nPhoton Counting mode data will now be taken with bias subtraction turned \non and the low energy cut-off returned to the nominal value. XRT will \nproduce prompt TDRSS GRB products for Swift/BAT detected bursts. Also we \nare no longer commanding observations manually, so GRBs and TOOs will be \ntaken in the appropriate XRT mode.\n\nAt this time we continue to investigate the cause of the anomaly. This may \nrequire short periods of downtime for XRT while we run diagnostic tests, \nwhich may interrupt some observations. We expect the overall downtime due \nto these tests to be low (<5%). We apologize in advance for any \nobservations that are interrupted.",
  "circularId": 16378,
  "createdOn": 1402434044000,
  "email": "kennea@swift.psu.edu",
  "subject": "Swift/XRT returns to normal observing",
  "submitter": "Jamie A. Kennea at PSU/Swift-XRT  <kennea@swift.psu.edu>"
}