Development of a Shuttle Infrared Telescope Facility /SIRTF/ fine guidance sensorFine 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.
Document ID
19810052795
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Salomon, P. M. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Glavich, T. A. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Goss, W. C. (California Institute of Technology, Jet Propulsion Laboratory, Pasadena Calif., United States)
Lorell, K. R. (California Institute of Technology, Jet Propulsion Laboratory, Pasadena; NASA, Ames Research Center Moffett Field, Calif., United States)
Date Acquired
August 11, 2013
Publication Date
January 1, 1981
Subject Category
Spacecraft Instrumentation
Meeting Information
Meeting: Seminar on Shuttle pointing of electro-optical experiments