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Gravity Probe B

Testing Einstein's Universe

WEEKLY HIGHLIGHTS FOR WEEK ENDING 3 April 1998:

STANFORD HIGHLIGHT
The gyroscope and gyroscope suspension groups have passed the 100,000 hour mark in cumulative gyroscope testing. This testing covers the period 1988 to present, with the gyroscope housings and rotors in configurations comparable to the Science Mission configuration.

SPACE VEHICLE HIGHLIGHT
The first Belleville Preload System (BPS) mechanism was assembled and successfully fit checked on the flight Probe. The remaining two flight mechanisms are being assembled and undergoing acceptance testing.

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