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  • 1
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    Preflight study of San Marco D/L GaAs solar cell panels (1984)
    In:  CASI
    Details
    Publication Date: 2006-02-14
    Description: The solar array for the San Marco D/L spacecraft is described and the performance of 4 GaAs solar cell panels are examined. In comparison to the typical Si solar cell panel for San Marco D/L, it is shown that each GaAs solar cell panel provides at least 23 percent more specific power at maximum output and 28 deg C. Also described here, are several measurements that will be made to evaluate the relative performance of Si and GaAs solar cell panels during the San Marco D/L flight.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA. Lewis Research Center Space Photovoltaic Res. and Technol. 1983; p 176-181
    Format: text
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    NASA TECHNICAL REPORTS
  • 2
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    San Marco D/L solar array system design and performance (1984)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: The design and performance of the solar array system for the San Marco D/L spacecraft is described in detail. The solar array system design is shown to be suitable for spacecraft which have elastically sensitized outer surfaces to measure aerodynamic forces. However, the performance of this solar array system is shown to be at least 30 percent less efficient than conventional spacecraft solar array designs. An on-board experiment to compare the in-flight performances of Si and GaAs solar cell panels is also described. Preflight performance data show that at beginning-of-life, air mass zero solar illumination, 28 C and peak power output the Si panels are at last 20 percent less efficient than the GaAs panels.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA-TM-86125 , NAS 1.15:86125
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 3
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    International ultraviolet explorer solar array power degradation (1983)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: The characteristic electrical performance of each International Ultraviolet Explorer (IUE) solar array panel is evaluated as a function of several prevailing variables (namely, solar illumination, array temperature and solar cell radiation damage). Based on degradation in the current-voltage characteristics of the array due to solar cell damage accumulated over time by space charged particle radiations, the available IUE solar array power is determined for life goals up to 10 years. Best and worst case calculations are normalized to actual IUE flight data (available solar array power versus observatory position) to accurately predict the future IUE solar array output. It is shown that the IUE solar array can continue to produce more power than is required at most observatory positions for at least 5 more years.
    Keywords: LAUNCH VEHICLES AND SPACE VEHICLES
    Type: NASA-TM-84989 , NAS 1.15:84989
    Format: application/pdf
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    NASA TECHNICAL REPORTS
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