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Gravity Probe B

Testing Einstein's Universe

WEEKLY HIGHLIGHTS FOR WEEK ENDING 30 JUNE 2000:

PAYLOAD HIGHLIGHT
The gyroscope team has begun room temperature test of flight gyroscopes #1 and #2. The caging touch tests on these gyroscopes were successful. Gyroscope #1 has been cleanly levitated, its cavity has been successfully explored, and a slow speed spin test is underway. The team members involved in this work are R. Brumley, B. Clarke, C. Gray, D. Hipkins, and R. Leese.

Photo: A green light is used to check for imperfections in the installed gyros. Sucessful integration demands whole and undamaged quartz housings. The green light helps locate any fractures or impurities which may have been introduced during this practice procedure.

SPACE VEHICLE HIGHLIGHT
The GP-B team successfully completed the initial Space Vehicle handling pathfinding operations using the SV Mass Simulator in B/3000 at Vandenberg Air Force Base. Operations completed included installation of the SV Simulator into the Tilt Dolly Ring, exercising of the tilt mechanism, removal of the SV Simulator/Tilt Ring Assembly from the dolly, and installation of the SV Simulator/Tilt Ring Assembly into the SV Transporter. The pathfinding operations concluded with a transporter drive-around of VAFB for collecting shock and vibration information on the SV Mass Simulator and Tilt Ring during "real-life" transporation conditions.
LMSS Pathfinding team members included: Rusty Gray, Bruce Hoyman, John Janicki, Russell Katz, and Mitch Skinner.

Photo: The Space Vehicle Mass Simulator/Tilt Ring Assembly being installed in the Space Vehicle Transporter in VAFB B/3000.

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