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Gravity Probe B

Testing Einstein's Universe

WEEKLY HIGHLIGHTS FOR WEEK ENDING 30 AUGUST 2002:

SPACE VEHICLE INTEGRATION CONTINUES
The GP-B Team successfully installed the flight Solar Arrays in positions 3 and 4 on the Space Vehicle. The position 3 Solar Array successfully completed first motion and walkout. The position 4 Solar Array is scheduled for first motion and walkout the week of September 2. The main tank vent bayonet was repaired and an associated bracket was integrated. In addition, FOSR was installed on the space vehicle.

Photo: GP-B Team Members Dale Stephens, Tom Welsh, Mike Sisley, Sean McCully, Mike Schermerhorm, Jeff Vanden Beukel and Solar Array Center Engineer Karrie Fulmer in front of the GP-B Space Vehicle with three of the four flight Solar Arrays installed.

GMA TESTING COMPLETED AT MOOG
All testing of the GMA has been completed at the vendor (MOOG). The ADR will be held on Sept. 4 and 5 with shipment to Stanford shortly thereafter.

MOC END-TO-END TEST SUCCESSFULLY COMPLETED
The MOC end-to-end test was successfully completed during the past week. This test consists of running the A side functional test (test 12.1 of IT01-3B) from the MOC. It includes operations in MA, SSA, and GN modes; DBRO, MRO, and snapshot data collection; EEPROM software patch; and operation of many space vehicle safe modes.

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