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Gravity Probe B

Testing Einstein's Universe

WEEKLY HIGHLIGHTS FOR WEEK ENDING 21 JULY 2000:

PAYLOAD HIGHLIGHT
The gyroscope group has successfully completed room temperature test of flight gyroscope #1 (along with gyroscopes #3 and #4 as previously reported). The tests included a caging touch test, a gyro levitation, an exploration of the gryoscope's cavity, and a slow speed spin test. Gyroscope #2 is currently in test. Two gyroscope #2 delevitations are under investigation. The team members involved in this work are R. Brumley, B. Clarke, C. Gray, D. Hipkins, and R. Leese.

Photo: Chuck Warren, Chris Gray and Bruce Clarke (from left to right) in the clean room with the probe during room temperature testing.

SPACE VEHICLE HIGHLIGHT
The flight Forward and Aft ECU boxes successfully completed pyro-shock and post-shock functional testing in LMSS B/255.

Photo: LMSS engineers John Thatcher and Carlos Jeanpierre with the Forward and Aft ECU boxes in B/203.

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