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Gravity Probe B

Testing Einstein's Universe

WEEKLY HIGHLIGHTS FOR WEEK ENDING 6 APRIL 2001:

PAYLOAD CONFIDENCE TEST COMPLETE
Post-acoustic confidence testing of the payload is now complete. This initial look at payload health indicates that it seems to have survived the acoustic test in excellent shape. The payload is now moving into the final stage of the test process, which will complete the formal verification of the payload specificiation. In preparation for this, the dewar has been rotated horizontal in preparation for the final checkout of Gyros #3 and #4.

Photo: Manager of cryogenic operations Mike Taber and the science payload in horizontal position.

PDU BOX SUCCESSFULLY RE-INSTALLED ON SPACECRAFT
The flight PDU box was successfully re-installed to the GP-B Spacecraft in the B/205 High Bay. All connector-savers have been removed and all cables have been mounted to the box in the flight configuration.

Photo: LMSS Technician Bud Swihart with the re-installed PDU on the GP-B Spacecraft in the B/205 High Bay.

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