Abstract
Nano-satellite PRISM is being developed at the Intelligence Space System Lab at University of Tokyo. The objective of PRISM mission is to observe earth with 30m resolution. Thus, a novel design of fabricated optics system with the extendable boom structure is required to attain longer focal length. For the purpose of attitude control of PRISM, we need to understand dynamics of the deployable boom, and vibration experiment under micro-gravity was conducted during parabolic flight tests at Nagoya, Japan. Input and output datum of transverse motions of the boom structure under gravity and micro-gravity was measured, and using this datum we report identification of the extendable boom system.
