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Operations CXO Status Report

Friday 6 July 2012 9.00am EDT

During the last week the Chandra observing schedule was replanned to replace a 15 ksec observation of N158C with two other targets which are less sensitive to variations in the ACIS focal plane temperature. The N158C target will be rescheduled in a future week.

A Chandra press release was issued on Jul 3 describing the violent behavior of V1647 Ori, a young Sun-like star spinning at high speed and spewing out super-hot plasma. Using many years of observations from NASA's Chandra, ESA's XMM-Newton, and Japan's Suzaku telescopes, scientists observed extended outbursts associated with faster growth, a surge in X-ray emission, and a dramatic temperature increase. In addition another variation in X-ray emission was found to repeat regularly with a period of about one day. For more details see:

A real-time procedure was executed on Jul 3 to perform a routine self-check of the Electrical Interface Assembly (EIA) Sequencer. A second real-time procedure was executed on Jul 5 to update the on-board ephemeris.

The schedule of targets for the next week which includes the two replanned targets is shown below.

SDSSJ1220+2542      ACIS-S        Jul  7
       3c268.2             ACIS-S
       Radiation Belts
       MXB1659-29          ACIS-S        Jul  8
       IC4451              ACIS-S
       RXJ1622.7-2325_P1   ACIS-S        Jul  9
       HD30177             ACIS-S
       HR3089              ACIS-S
       LP851-346           ACIS-S
       NGC3588             ACIS-S
       SDSSJ1210+1741      ACIS-S
       SgrA*               ACIS-S HETG
       PSRJ1124-36         ACIS-S        Jul 10
       Radiation Belts
       SgrA*               ACIS-S HETG
       PSRJ1723-2837       ACIS-S        Jul 11
       SDSSJ114702.51+1625 ACIS-S
       3c275               ACIS-S        Jul 12
       SgrA*               ACIS-S HETG
       Radiation Belts                   Jul 13
       SgrA*               ACIS-S HETG
       SgrA*               ACIS-S HETG


All spacecraft subsystems continued to support nominal operations.

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