Autonomous spacecraft gyro failure detection based on conservation of angular momentum

Details Autonomous spacecraft gyro failure detection based on conservation of angular momentum Autonomous spacecraft gyro failure detection based on conservation of angular momentum

Nov 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994jgcd...17.1385m&link_type=abstract

Journal of Guidance, Control, and Dynamics (ISSN 0731-5090), vol. 17, no. 6, p. 1385-1387

Computer Science

Angular Momentum, Failure Analysis, Fault Detection, Gyroscopes, Hubble Space Telescope, Spacecraft Reliability, System Failures, Algorithms, Conservation Laws, Onboard Data Processing, Redundant Components

Scientific paper

A new gyro failure detection algorithm, implemented onboard the Hubble Space Telescope (HST), is described. It can detect a class of potential gyro failures that would not have been recognized by pre-existing failure detection algorithms. It detects failures by monitoring the change in the system momentum calculated in the flight computer. The results of simulations for the HST show that the system momentum test is perceptive enough to detect a soft gyro failure from any three-gyro configuration.

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