Planning for the Skylab reentry, options for influencing the reentry, and a discussion of the Penn State drag modulation scheme are presented. The history of and risks in connection with Skylab reentry, and the NASA and the Penn State schemes for extending Skylab life are discussed. Coordinate systems and equations of motions describing the Skylab attitude motion, aerodynamic damping, and six-degree-of-freedom simulation are considered to derive structural damping models for Skylab, and to determine if stabilization is possible, and if it is, if the TACS (attitude-control) system can retumble the vehicle. It is concluded that at least 12 hours are required to carry out the Penn State drag modulation, and natural stabilization after a period of tumbling is possible but cannot be confirmed due to limitations in the modeling of aerodynamic properties, internal damping, and atmospheric density.


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    Titel :

    Skylab is falling - Strategies for reentry


    Beteiligte:
    Kaplan, M. H. (Autor:in) / Alexander, S. G. (Autor:in)

    Kongress:

    American Astronautical Society and American Institute of Aeronautics and Astronautics, Astrodynamics Specialist Conference ; 1979 ; Provincetown, MA


    Erscheinungsdatum :

    01.06.1979


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Keine Angabe


    Sprache :

    Englisch


    Schlagwörter :


    Reentry of Skylab: Operational Aspects

    J. C. Caroff / J. Y. Trebaol / I. Legoff et al. | NTIS | 1981


    Reentry of Skylab (Orbital Computation Aspect)

    J. P. Carrou / J. M. Robert / D. Vienne et al. | NTIS | 1981



    Torque equilibrium attitude control for Skylab reentry

    Glaese, J. R. / Kennel, H. F. | NTRS | 1979


    Torque Equilibrium Attitude Control for Skylab Reentry

    J. R. Glaese / H. F. Kennel | NTIS | 1979