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Gravity Probe B

Testing Einstein's Universe

WEEKLY HIGHLIGHTS FOR WEEK ENDING 1 FEBRUARY 2002:

GSS ENVIRONMENT TESTS COMPLETE ON #1, #2, & #4
Three of the four forward GSS boxes have successfully completed thermal vacuum and vibration testing. These boxes are now in burn-in. The GSS system is on-track for a 15 February 2002 completion.

Photo: Bill Bencze working on the GSS electronics box during Payload Testing last August.

SPACE VEHICLE INTEGRATION AND TESTING CONTINUES
Aft thruster tests have successfully been completed. Space vehicle level testing of the flight ECU system is underway. A test anomaly associated with the ECU timing is in-work.

Photo: The forward ECU during Payload testing, taken last August.

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