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Gravity Probe B

Testing Einstein's Universe

WEEKLY HIGHLIGHTS FOR WEEK ENDING 14 FEBRUARY 2003:

PREPARATIONS FOR SPIN BALANCE UNDERWAY
The GP-B space vehicle has been moved into the spin balance facility. Weight and balance measurements were completed and confirm that the vehicle is within the specified limits. The vehicle has been mounted on the spin table. Course and fine alignments have been completed ahead of schedule. The vehicle is being removed from the table to allow topping off of the dewar helium level to 95 % full. After filling has been completed the vehicle will be remounted on the table. The plan is to perform 95 % full and 66 % full dewar spins.

Photo: The GP-B spacecraft outside the thermal vacuum chamber (taken from inside the chamber).

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