Operations CXO Status Report

Friday 31 January 2003 7.00am EST

During the last week Chandra completed the observing schedule as planned. Chandra passed through the second and third eclipses of the Spring 2003 season on 26 and 28 Jan with nominal power and thermal performance. A real-time procedure was run following the eclipse on Jan 28 to disable the Momentum Unload subfunction in the flight software to ensure momentum dumps remain under manual control. A real-time procedure was completed on 25 Jan to collect dump data at a variety of data rates with deconvolutional encoding disabled. The data will be used as part of an investigation into absolute timing accuracy. The observing schedule for next week is shown below and includes an observation of the Earth.

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Radiation Belts                      Feb 2
F23365+3604             ACIS-S       Feb 3
First J074402+514917    ACIS-S
Markarian 231           ACIS-S
NGC 4555                ACIS-S       Feb 4
M87                     ACIS-S
NGC 4325 Group          ACIS-S
SDSS J121415.17+0055    ACIS-S
XTE J1859+226           ACIS-S
Radiation Belts                      Feb 5
Betelgeuse (4 obs)      HRC-S
Betelgeuse              HRC-I        Feb 6
Betelgeuse              ACIS-S
Betelgeuse              ACIS-I
NGC 288                 ACIS-S
Earth                   HRC-I
NGC 1850 A/B            ACIS-S
2S1711-339              ACIS-S       Feb 7
2MASS123016+030255      ACIS-S
MACS-J1149.5+2223       ACIS-I
NGC 3718                ACIS-S
Radiation Belts
NGC 4565                ACIS-S       Feb 8
PSR J1509-5850          ACIS-S       Feb 9

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All spacecraft subsystems, with the exception of MUPS thruster A-1 as noted above, continued to operate nominally.

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