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Operations CXO Status Report

Friday 21 August 2009 9.00am EDT

During the last week Chandra completed the observing schedule as planned.

A real-time procedure was conducted on August 14 to turn off the Science Instrument Module FA6 heater. Turning off the FA6 heater is expected to create additional margin in control of the ACIS focal plane temperature. The heater will remain off while the spacecraft attitude is restricted to those that minimize the temperatures of the MUPS tank and fill panel, which are the attitude for which having the heater off is expected to have the greatest effect.

A real-time procedure was completed on August 19 to update the on-board ephemeris.

The schedule of targets for the next week is shown below and includes the first use of a grating since the HETG retract switch anomaly of July 7.

------------------------------------------
Sersic159-03AS11       ACIS-I       Aug 24
RXJ2014.8-2430         ACIS-S       Aug 25
HELLAS2XMM26900039     ACIS-S
Radiation Belts
M15                    ACIS-S       Aug 26
Altair                 HRC-S/LETG
J2214.8+3002           ACIS-I       Aug 27
M15                    ACIS-S       Aug 28
Radiation Belts
SDSSJ235833.20+0034    ACIS-S
IRAS01298-0744         ACIS-S
SDSSJ0104+0003         ACIS-I       Aug 29
SPT-CL0000-5010        ACIS-I
CygnusLoopNERimr       ACIS-S
J2241.7-5239           ACIS-I       Aug 30
Arp86                  ACIS-S
SPT-CL2332-5052        ACIS-I
UGC772                 ACIS-S
HR8799                 ACIS-S

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

All spacecraft subsystems continued to support nominal operations.

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