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  • 1
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    New NASA SEE LEO Spacecraft Charging Design Guidelines: How to Survive in LEO Rather than GEO (2004)
    In:  CASI
    Details
    Publication Date: 2018-06-12
    Description: It has been almost two solar cycles since the GEO Guidelines of Purvis et al (1984) were published. In that time, interest in high voltage LEO systems has increased. The correct and conventional wisdom has been that LEO conditions are sufficiently different from GEO that the GEO Guidelines (and other GEO and POLAR documents produced since then) should not be used for LEO spacecraft. Because of significant recent GEO spacecraft failures that have been shown in ground testing to be likely to also occur on LEO spacecraft, the SEE program commissioned the production of the new LEO Spacecraft Charging Design Guidelines (hereafter referred to as the LEO Guidelines). Now available in CD-ROM form, the LEO Guidelines highlight mitigation techniques to prevent spacecraft arcing on LEO solar arrays and other systems. We compare and contrast the mitigation techniques for LEO and GEO in this paper. We also discuss the extensive bibliography included in the LEO Guidelines, so results can be found in their primary sources.
    Keywords: Spacecraft Design, Testing and Performance
    Type: 8th Spacecraft Charging Technology Conference; NASA/CP-2004-213091
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 2
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    An Integrated Approach to Thermal Management of International Space Station Logistics Flights, Improving the Efficiency (2003)
    In:  Other Sources
    Details
    Publication Date: 2019-07-18
    Description: The efficiency of re-useable aerospace systems requires a focus on the total operations process rather than just orbital performance. For the Multi-Purpose Logistics Module this activity included special attention to terrestrial conditions both pre-launch and post-landing and how they inter-relate to the mission profile. Several of the efficiencies implemented for the MPLM Mission Engineering were NASA firsts and all served to improve the overall operations activities. This paper will provide an explanation of how various issues were addressed and the resulting solutions. Topics range from statistical analysis of over 30 years of atmospheric data at the launch and landing site to a new approach for operations with the Shuttle Carrier Aircraft. In each situation the goal was to "tune" the thermal management of the overall flight system for minimizing requirement risk while optimizing power and energy performance.
    Keywords: Spacecraft Design, Testing and Performance
    Type: 33rd International Conference on Environmental Systems; Jul 07, 2003 - Jul 10, 2003; Vancouver, British Columbia; Canada
    Format: text
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    NASA TECHNICAL REPORTS
  • 3
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    New NASA SEE LEO Spacecraft Charging Design Guidelines: How to Survive in LEO Rather Than GEO (2003)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: It has been almost two solar cycles since the 1984 GEO Guidelines of Purvis, Garrett, Whittlesey, and Stevens were published. In that time, interest in high voltage LEO systems has increased. Correct and conventional wisdom has been that LEO conditions are sufficiently different from GEO that the GEO Guidelines (and other GEO and POLAR documents produced since then) should not be used for LEO spacecraft. Because of significant recent GEO spacecraft failures that have been shown in ground testing to be likely to also occur on LEO spacecraft, the SEE program commissioned the production of the new LEO Spacecraft Charging Design Guidelines. Now available in CD-ROM form, the LEO Guidelines highlight mitigation techniques to prevent spacecraft arcing on LEO solar arrays and other systems. We compare and contrast the mitigation techniques for LEO and GEO in this paper. We also discuss the extensive bibliography included in the LEO Guidelines, so results can be found in their primary sources.
    Keywords: Spacecraft Design, Testing and Performance
    Type: NASA/TM-2003-212737 , E-14262 , Eigth Spacecraft Charging Technology Conference; Oct 20, 2003 - Oct 24, 2003; Huntsville, AL; United States
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 4
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    NASA's New Orbital Space Plane: A Bridge to the Future (2003)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: NASA is developing a new spacecraft system called the Orbital Space Plane (OSP). The OSP will be launched on an expendable launch vehicle and serve to augment the shuttle in support of the International Space Station by transporting astronauts to and from the International Space Station and by providing a crew rescue system.
    Keywords: Spacecraft Design, Testing and Performance
    Type: AIAA 10th Anniverary of Flight; Jul 14, 2003 - Jul 17, 2003; Dayton, OH; United States
    Format: application/pdf
    Location Call Number Expected Availability
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    NASA TECHNICAL REPORTS
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