Geostationary orbit transfers of a spacecraft with low-thrust electric propulsion systems (EPSs) that use the energy of solar batteries are considered. The influence of such disturbing factors as the gravitational effect of the Sun and Moon, geopotential variations, and switching off of the EPS thrust when the spacecraft enters the Earth’s shadow is investigated. The influence of all factors jointly and each of the factors separately is analyzed. In each case, to minimize the working substance expenditures for a transfer, the two-point boundary value problem is formulated and solved on the basis of the Pontryagin’s maximum. Only in the case of thrust switching off in the area of the shadow is the so-called “incomplete” boundary value problem solved. This solution does not take into account the conditions for optimal crossing the shadow boundaries. Although the transfers are nonoptimal in this case, it becomes possible by choosing the problem parameters to obtain good (in terms of expenditures) solutions. Here, the criterion is a comparison with the nominal trajectories—the optimal transfers in the central Newtonian field of the Earth without the thrust switching off and without taking the gravitational effect of the Sun and Moon into account. The results of calculations for several nominal trajectories, which differ in transfer duration, in the number of revolutions, and in other parameters, are presented.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    The Influence of Disturbances during Multiturn Transfer to a Geostationary Orbit


    Additional title:

    Cosmic Res


    Contributors:

    Published in:

    Cosmic Research ; 59 , 5 ; 328-334


    Publication date :

    2021-09-01


    Size :

    7 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




    Spacecraft Charging in Geostationary Transfer Orbit

    Parker, Linda Neergaard / Minow, Joseph | NTRS | 2014


    Spacecraft Charging in Geostationary Transfer Orbit

    L. N. Parker / J. Minow | NTIS | 2014


    Multiturn-Positionsmesseinrichtung

    LINDENMAYR THOMAS | European Patent Office | 2021

    Free access