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Gravity Probe B

Testing Einstein's Universe

WEEKLY HIGHLIGHTS FOR WEEK ENDING 30 April 1999:

STANFORD HIGHLIGHT
The first of two forward TRE boxes has successfully passed thermal vacuum testing. The measured differential gain of the TRE for the two detector signal channels is 15 times better than the specification. The measured gain stability is better than +/- 12 ppm/K. The second forward TRE box will undergo thermal vacuum testing in the near future.
Photo: None Available

SPACE VEHICLE HIGHLIGHT
The Relativity Mission test batteries have completed reconditioning and have been installed on the space vehicle in LMMS building 205 in preparation for phase 1 power system testing.
Photo: LMMS Engineer Shawky Shehata with the Relativity Mission test batteries and pallet.

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