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Operations CXO Status Report

Friday 14 May 2010 9.00am EDT

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

Real-time procedures were executed on May 8 in preparation for the start of the 2010 summer eclipse season: one to activate SCS 29 and one to dump and clear the EPS glitch counters. Chandra passed through the first and second eclipses of the season on May 9 and 11 respectively, with nominal power and thermal performance. A real-time procedure was executed on May 13 to update the on-board ephemeris.

A Chandra press release was issued on May 11 describing observations from NASA's Chandra X-ray Observatory and ESA's XMM-Newton that provide the strongest evidence yet that the "missing matter" in the nearby Universe is located in an enormous web of hot, diffuse gas. To get this result, researchers analyzed X-ray light from a distant quasar that passed through a "wall" of galaxies about 400 million light years from Earth. For details see:

The schedule of targets for the next week is shown below

Radiation Belts                     May 17
ChandraDeepField-S     ACIS-I
ESO362-G18             ACIS-S       May 18
SNR0049-73.6           ACIS-S
ESO540-014             ACIS-S
XMMJ173203.3-344518    ACIS-S
SNR0049-73.6           ACIS-S       May 19
ESO362-G18             ACIS-S
Radiation Belts                     May 20
HCG79                  ACIS-S
LATPSRJ1742-20         ACIS-S       May 21
SDSSJ161332.53+2834    ACIS-S
IC10                   ACIS-S
ESO362-G18             ACIS-S
SNR0049-73.6           ACIS-S       May 22
Radiation Belts
SNR0049-73.6           ACIS-S
QJ0158-4325            ACIS-S       May 23
ChandraDeepField-S     ACIS-I
ESO092-001             ACIS-S       May 24


All spacecraft subsystems continued to support nominal operations.

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