The calculation approach is described for parametric analysis of candidate electric propulsion systems employed in LEO to GEO missions. Occultation relations, atmospheric density effects, and natural radiation effects are presented. A solar cell cover glass tradeoff is performed to determine optimum glass thickness. Solar array and spacecraft pointing strategies are described for low altitude flight and for optimum array illumination during ascent. Mass ratio tradeoffs versus transfer time provide direction for thruster technology improvements. Integrated electric propulsion analysis is performed for orbit boosting, inclination change, attitude control, stationkeeping, repositioning, and disposal functions as well as power sharing with payload on orbit. Comparison with chemical auxiliary propulsion is made to quantify the advantages of integrated propulsion in terms of weight savings and concomittant launch cost savings.


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    Title :

    Integrated Propulsion for Near-Earth Space Missions. Volume 2: Technical


    Contributors:
    C. L. Dailey (author) / H. F. Meissinger (author) / R. H. Lovberg (author) / S. Zafran (author)

    Publication date :

    1981


    Size :

    173 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




    Integrated Propulsion for Near-Earth Space Missions. Volume 2: Technical

    C. L. Dailey / H. F. Meissinger / R. H. Lovberg et al. | NTIS | 1981


    Integrated propulsion for near-Earth space missions. Volume 2: Technical

    Dailey, C. L. / Meissinger, H. F. / Lovberg, R. H. et al. | NTRS | 1981


    Integrated Propulsion for Near-Earth Space Missions. Volume 1: Executive Summary

    C. L. Dailey / H. F. Meissinger / R. H. Lovberg et al. | NTIS | 1981


    Integrated propulsion for near-Earth space missions. Volume 1: Executive summary

    Dailey, C. L. / Meissinger, H. F. / Lovberg, R. H. et al. | NTRS | 1981


    Integrated Propulsion for Near-Earth Space Missions. Volume 1: Executive Summary

    C. L. Dailey / H. F. Meissinger / R. H. Lovberg et al. | NTIS | 1981