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Gravity Probe B

Testing Einstein's Universe

WEEKLY HIGHLIGHTS FOR WEEK ENDING 28 JULY 2000:

PAYLOAD HIGHLIGHT
The gyroscope group led by Rob Brumley has successfully completed the room temperature gyroscope functional testing milestone CM-07. The Science Instrument and Probe C systems passed all tests, showing complete functionality post Probe C redesign. After 2 de-levitations gyroscope #2 has flawlessly passed stringent re-testing, demonstrating full flight qualification.

Photo: Chuck Warren and Bruce Clarke with the Probe during room temperature testing.

SPACE VEHICLE HIGHLIGHT
The GP-B/TDRSS compatibility test was successfully completed, meeting all test objectives. The portable antenna was set up behind B205 to allow communication with the TDRSS satellite. The test was run with Goddard and White Sands and verified uplink and downlink through TDRSS, White Sands, and back to POD C. SSA and MA service and coherent and non-coherent modes were tested. This test verifies that the space network supports GP-B.

Photo: LMSS engineers Bill Given, Pete Carley, Jerry Aguinaldo, Bill Jacobsen, Frank Mendoza, and Ted Gill and Honeywell representatives Bob Rodriguez, Joe Baros, and Mike Maher with the TDRSS portable setup outside of LMSS B/205.

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