A chronology of the on-orbit pointing control system changes on the Hubble Space Telescope and associated pointing improvementsThe pointing control system on the Hubble Space Telescope was designed to keep an image stable in the focal plane to 0.007 arc seconds (rms) for observations lasting from seconds to hours. Following the on-orbit deployment, this level of pointing performance was achieved only for short intervals during each orbit because of unexpected disturbances originating in the Solar Arrays. Since this problem was first recognized, several control system redesigns have been carried out and uplinked to the spacecraft with increasing degrees of success. This paper presents a chronology of those activities. In addition, sufficient background material is included regarding the pointing control system and the Solar Array disturbance so that the contents can be understood without reverting to the details in the reference material.
Document ID
19920072668
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Sharkey, J. P. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Nurre, G. S. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Beals, G. A. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Nelson, J. D. (Lockheed Missiles & Space Co., Inc. Sunnyvale, CA, United States)
Date Acquired
August 15, 2013
Publication Date
January 1, 1992
Subject Category
Spacecraft Instrumentation
Report/Patent Number
AIAA PAPER 92-4618
Meeting Information
Meeting: AIAA Guidance, Navigation and Control Conference