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Gravity Probe B

Testing Einstein's Universe

WEEKLY HIGHLIGHTS FOR WEEK ENDING 3 July 1998:

STANFORD HIGHLIGHT
The system integration team lead by Dr. Michael Taber has succesfully completed the insertion of flight Probe C into the flight dewar. This operation is first step in the fitcheck of Probe C in the SMD. The next stage of this operation will verify operation of the Belleville Preload System (BPS). After completion the science instrument will be integrated into the probe, and final probe to dewar integration will take place.

SPACE VEHICLE HIGHLIGHT
The Relativity Mission Thruster Isolation Valve (TIV) qualification unit has successfully completed acceptance-level thermal vacuum testing, a well as ambient functional, random vibration, burst, leak and life testing. The unit is scheduled to complete pyro-shock testing and begin qualification-level thermal vacuum testing by the end of July.

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