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  • 1
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    Flight performance of Skylab attitude and pointing control system (1975)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: The Skylab attitude and pointing control system (APCS) requirements are briefly reviewed and the way in which they became altered during the prelaunch phase of development is noted. The actual flight mission (including mission alterations during flight) is described. The serious hardware failures that occurred, beginning during ascent through the atmosphere, also are described. The APCS's ability to overcome these failures and meet mission changes are presented. The large around-the-clock support effort on the ground is discussed. Salient design points and software flexibility that should afford pertinent experience for future spacecraft attitude and pointing control system designs are included.
    Keywords: SPACECRAFT DESIGN, TESTING AND PERFORMANCE
    Type: NASA-TN-D-8003 , M-136
    Format: application/pdf
    Location Call Number Expected Availability
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    NASA TECHNICAL REPORTS
  • 2
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    A preliminary study of the attitude control for the Shuttle Tethered Satellite System (1979)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: The objective of this investigation is to determine the equations of motion governing the attitude of a tethered satellite and subsequently to gain insight toward obtaining an appropriate control law. This study relates the coupling of the rotational dynamics of the satellite with the dynamical system of the Orbiter already constructed. In particular, a simplified approach is utilized to describe the satellite as constrained to planar motion. Modifications to the existing tethered satellite trajectory simulation provide a conceptual study of the satellite's behavior and its effect on the overall system.
    Keywords: SPACECRAFT DESIGN, TESTING AND PERFORMANCE
    Type: SOUTHEASTCON ''79; Region 3 Conference and Exhibit; Apr 01, 1979 - Apr 04, 1979; Roanoke, VA
    Format: text
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    NASA TECHNICAL REPORTS
  • 3
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    Small Expendable-tether Deployer System (SEDS) development status (1989)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: Plans for proposed flight of the Small Expendable-tether Deployer System (SEDS) on a Delta II launch vehicle are discussed. The SEDS tether concept and mission requirements are outlined. Results are presented from calculations of the tether dynamics and computer modeling to determine tether behavior. The tether's thermal characteristics, electronics system, material, data collection procedure, payload, and orbital trace are described.
    Keywords: SPACECRAFT DESIGN, TESTING AND PERFORMANCE
    Type: AIAA PAPER 89-1550 , International Conference on Tethers in Space - Toward Flight; May 17, 1989 - May 19, 1989; San Francisco, CA; United States
    Format: text
    Location Call Number Expected Availability
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    NASA TECHNICAL REPORTS
  • 4
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    Effects of tether attachments on the Shuttle/Tethered Satellite System dynamics (1979)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: The dynamics of the Shuttle Tethered Satellite System are influenced by attaching the tether at some point other than the center-of-masses of the Shuttle and the subsatellite. At the Shuttle, the tether attachment is made at the end of a boom deployed out of the payload bay. This attachment noticeably affects retrieval dynamics of the satellite pendulous motion. At the satellite, the tether attachment is assumed to be made on the circumference of the satellite. This attachment greatly affects the attitude motion of the satellite about its own center-of-mass. Computer simulation results are presented showing the effects of the Shuttle boom in a three-dimensional model and the effects of satellite attachment in a planar model.
    Keywords: SPACECRAFT DESIGN, TESTING AND PERFORMANCE
    Type: AAS PAPER 79-033 , American Astronautical Society, Annual Rocky Mountain Guidance and Control Conference; Feb 24, 1979 - Feb 28, 1979; Keystone, CO
    Format: text
    Location Call Number Expected Availability
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    NASA TECHNICAL REPORTS
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