TITLE: GCN CIRCULAR NUMBER: 16378 SUBJECT: Swift/XRT returns to normal observing DATE: 14/06/10 21:00:44 GMT FROM: Jamie A. Kennea at PSU/Swift-XRT J. A. Kennea and D. N. Burrows (PSU) report on behalf of the Swift/XRT team: At 17:58UT on June 10th, 2014, Swifts X-ray Telescope (XRT) was commanded into Auto State, returning it to a normal observing setup. The mode of XRT operations described by GCN #16356 no longer applies. This means that Photon Counting mode data will now be taken with bias subtraction turned on and the low energy cut-off returned to the nominal value. XRT will produce prompt TDRSS GRB products for Swift/BAT detected bursts. Also we are no longer commanding observations manually, so GRBs and TOOs will be taken in the appropriate XRT mode. At this time we continue to investigate the cause of the anomaly. This may require short periods of downtime for XRT while we run diagnostic tests, which may interrupt some observations. We expect the overall downtime due to these tests to be low (<5%). We apologize in advance for any observations that are interrupted.