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Gravity Probe B

Testing Einstein's Universe

WEEKLY HIGHLIGHTS FOR WEEK ENDING 24 DECEMBER 1999:

STANFORD HIGHLIGHT
Probe C has been successfully removed from the flight dewar, thus completing Payload Test I. During the removal process, probe temperatures were monitored. These measurements give additional insight into the probe's anomalous radial thermal conduction. Following the removal of the probe from the dewar, the probe instrumentation and suspension cables were remeasured. The team members involved in this work include M. Anderson, B. Clarke, J. Maddocks, B. Muhlfelder, D. Murray, M. Taber, and, T. Welsh

Photo: Removal of the probe from the Dewar.

SPACE VEHICLE HIGHLIGHT
The Flight Computer was returned from Southwest Research and reinstalled onto the spacecraft. Both the A-side and B-side were successfully powered on. A confidence test was run to ensure the flight software loaded properly. The format switches and the memory dumps performed show that the CCCA is in good health and ready to support additional spacecraft testing.

Photo: LMMS Engineers Mark Anderson and Jerry Aguinaldo with the space craft after re-installation of the CCCA.

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