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Operations CXO Status Report

Friday 25 February 2011 9.00am EST

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

A real-time procedure was executed on Feb 18 to update the on-board ephemeris.

A Chandra press release was issued on Feb 23 describing the first direct evidence for a superfluid at the core of a neutron star. Chandra observations of Cassiopeia A, a supernova remnant located about 11,000 light years away from Earth, taken over a decade show significant cooling in the dense core left behind after the explosion. This cooling is likely caused by a neutron superfluid forming in its central regions. For details see: http://chandra.harvard.edu/press/11_releases/press_022311.html

The schedule of targets for the next week is shown below.

------------------------------------------
IGRJ21188+4901         ACIS-I       Feb 28
PSRJ1856+0245          ACIS-I
1RXSJ184756.1-22193    ACIS-S
SLJ1204.4-0351         ACIS-I
NGC3242                ACIS-S
Radiation Belts                     Mar  1
SN1987A                ACIS-S/HETG
Gl31.5                 ACIS-S       Mar  2
1RXSJ021246.2-34225    ACIS-S
SDSSJ084910.13+0445    ACIS-S
NGC4593                HRC-S/
PSS0926+3055           ACIS-S       Mar  3
Radiation Belts                     Mar  4
SN1987A                ACIS-S/HETG
IGRJ16393-4643         HRC-I        Mar  5
NGC4593                HRC-S/LETG
IGRJ17091-3624         HRC-I        Mar  6
SN1987A                ACIS-S/HETG

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

All spacecraft subsystems continued to support nominal operations.

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