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Gravity Probe B

Testing Einstein's Universe

WEEKLY HIGHLIGHTS FOR WEEK ENDING 10 JANUARY 2003:

PAYLOAD TEST AT SPACE VEHICLE LEVEL IS UNDERWAY
The space vehicle test team has started the Payload Test at the Space Vehicle level (E-28). To date, the heater test, the gyroscope bump test, the UV lamp test, and the PID algorithm test have been run on the vehicle. Currently, vatterfly valve GSE and GMA GSE are being installed on to the vehicle. Following these installations, the plan is to run a suite of GMA/vatterfly valve based E-28 tests.

Photo: The spacecraft outside of the thermal vacuum chamber in the test area.

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