Retroreflector field trackerAn electrooptical position-measuring instrument, the Retroreflector Field Tracker or RFT, is described. It is part of the Dynamic Augmentation Experiment - a part of the payload of Space Shuttle flight 41-D in Summer 1984. The tracker measures and outputs the position of 23 reflective targets placed on a 32-m solar array to provide data for determination of the dynamics of the lightweight structure. The sensor uses a 256 x 256 pixel CID detector; the processor electronics include three Z-80 microprocessors. A pulsed laser diode illuminator is used.
Wargocki, F. E. (Ball Aerospace Systems Div. Boulder, CO, United States)
Ray, A. J. (Ball Corp. Ball Aerospace Systems Div., Boulder, CO, United States)
Hall, G. E. (NASA Marshall Space Flight Center Huntsville, AL, United States)