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Operations CXO Status Report

Friday 10 June 2005 9.00am EDT

During the last week the observing schedule was replanned to include an observation of SAX J1808.4-3658 that was approved as a fast turn-around Target Of Opportunity (TOO). Loads were replanned and uplinked on Jun 6. An observation of Abell 3667 was shortened to accommodate the new observation, and the impacted observing time will be rescheduled.

A real-time procedure was completed on Jun 4 as part of a diagnosis of a stuck-on heater located on the Optical Bench Assembly (OBA) in Zone 50. The results indicate that the likely source of additional power is the prime and not the redundant heater bus. The increase in temperature of the OBA near the stuck-on heater is 3-4 deg F, and is considered insufficient to impact operations.

The schedule of targets for the next week is shown below and includes an observation of M81 coordinated with ground observations.

------------------------------------------
PSR B1509-58           HRC-I        Jun 12
E0102-72               ACIS-I       Jun 13
IGR J16167-4957        ACIS-I
Radiation Belts
NGC4365                ACIS-S       Jun 14
M81                    ACIS-S
Abell 3667             ACIS-I       Jun 15
GX 339-4               ACIS-S/HETG
IGR J05007-7047        ACIS-I
IGR J07563-4137        ACIS-I       Jun 16
IGR J12026-5349        ACIS-I
HD 143473              ACIS-S
Radiation Belts
Abell 3667             ACIS-I       Jun 17
M81                    ACIS-S       Jun 18
Westerlund1            ACIS-S
Radiation Belts
Abell 3667             ACIS-I       Jun 19

------------------------------------------

All spacecraft subsystems continued to support nominal operations.

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