AbstractAsteroid sample and return spacecraft MUSES-C has some newly-developed light weight optical sensors, in order to approach, rendezvous with, and land on the asteroid 1989ML. ONC-T is a multi-spectrum optical band camera with 8 filters, 5.7°×5.7° FOV , and 20 arcsec/pixel resolution. It is used for scientific observation and the precise global mapping of the asteroid to select a landing point. Both ONC-W1 and W2 are wide angle camera with 60°×60° FOV and used for autonomous guidance onboard. LIDAR is used for measurement of distance to the asteroid surface from 50 km to 50 m . LRF provides relative distance and attitude to the asteroid surface using four beams at the range less than 100 m . Four sets of FBS detect obstacle under solar cell panels to avoid unexpected collision to the surface. In this paper, after brief description of rendezvous and landing scenario, aims, requirements, and design specifications of each sensor are shown. Present status of development, function and performance test results of some prototype sensors are also reported.


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    Title :

    Light weight sensors for the autonomous asteroid landing of MUSES-C mission


    Contributors:

    Published in:

    Acta Astronautica ; 52 , 2-6 ; 381-388


    Publication date :

    2002-01-01


    Size :

    8 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English





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