Project Photos

Battel Engineering, Inc.
10020 North 58th Street
Scottsdale, AZ  85253
office: (480) 991-9747
fax: (480) 991-9748
email: bateng@earthlink.net

187. GP-B Aft Power Unit

View of a flight Gravity Probe-B Aft Power Unit (APU) built for Stanford University. The APU contains 5 individual ultra-low noise (sub-microvolt) power supplies (both high voltage and low voltage) for providing power to the GP-B gyroscope suspension system. The unit is approximately 11 inches by 17 inches. The compartments provide both structural rigidity as well as noise isolation. Four APU units are operating on-orbit as part of the GP-B mission launched in April 2004.



Image Steve Battel, Battel Engineering, Inc. All rights reserved.