An elliptic rectilinear orbit (ERO) is a particular conic orbit in which the semimajor axis takes a finite value and the eccentricity is unity. From a geometrical point of view an ERO is a line segment connecting both orbital foci: one endpoint of the segment coincides with the primary focus (the sun in a heliocentric system), while the other endpoint is the orbit apocenter. A spacecraft (or a celestial body) that tracks a heliocentric ERO experiences a rectilinear motion toward the sun with a purely radial velocity, that is, directed along the spacecraft-sun direction. The velocity magnitude is zero in correspondence of the orbit apocenter and takes its maximum value at the primary focus.
Solar Sail Capabilities to Reach Elliptic Rectilinear Orbits
QUARTA, ALESSANDRO ANTONIO
Primo
Conceptualization
;MENGALI, GIOVANNIUltimo
Supervision
2011-01-01
Abstract
An elliptic rectilinear orbit (ERO) is a particular conic orbit in which the semimajor axis takes a finite value and the eccentricity is unity. From a geometrical point of view an ERO is a line segment connecting both orbital foci: one endpoint of the segment coincides with the primary focus (the sun in a heliocentric system), while the other endpoint is the orbit apocenter. A spacecraft (or a celestial body) that tracks a heliocentric ERO experiences a rectilinear motion toward the sun with a purely radial velocity, that is, directed along the spacecraft-sun direction. The velocity magnitude is zero in correspondence of the orbit apocenter and takes its maximum value at the primary focus.File | Dimensione | Formato | |
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