Fine guidance technology development for the Shuttle Infrared Telescope Facility (SIRTF) centers upon the use of a single multiple-star-tracking sensor to provide the position information necessary to produce three-axis attitude control signals for precision payload pointing. The effort described in this paper is concerned with the development of a fine guidance sensor that employs a high-density charge-coupled imaging device for producing position information signals by using star fields. Multiple star position information produces three-axis position error signals that are used to update inertial reference gyros. The sensor employs advanced position interpolation algorithms to enhance field-of-view resolution and to correct for optical aberrations inherent in spatially chopped star images resulting from the telescope's movable secondary mirror. Operation of the sensor is under the control of a high-performance microcomputer that provides both autonomy and flexibility in a guidance application.
Development of a Shuttle Infrared Telescope Facility /SIRTF/ fine guidance sensor
Seminar on Shuttle pointing of electro-optical experiments ; 1981 ; Los Angeles, CA
1981-01-01
Miscellaneous
No indication
English
SIRTF - The Shuttle Infrared Telescope Facility
NTRS | 1982
|SIRTF - The Shuttle Infrared Telescope Facility
NTRS | 1982
|SIRTF - the Shuttle Infrared Telescope Facility
NTIS | 1982
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