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Gravity Probe B

Testing Einstein's Universe

WEEKLY HIGHLIGHTS FOR WEEK ENDING 27 APRIL 2001:

PHASE C GYRO OPERATIONS COMPLETE
The payload test team has completed the phase C testing of gyroscope #4. The test results indicate that gyroscope #4 is flight worthy, however a test anomaly associated with this gyroscope is under review. The gas and vacuum lines have been removed from the payload and the payload has been rotated to a vertical orientation.

Photo: Engineer Chris Gray with gyroscope #4 during payload recycle last year.

ECU SUCCESSFULLY INSTALLED ON SPACECRAFT
The Forward and Aft ECU boxes have been successfully installed on the GP-B spacecraft to support confidence testing in LM B/205.

Photo: LMSS Technician Bud Swihart with the Aft ECU in the B/205 High Bay.

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