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Dynamics of Space Particles and Spacecrafts Passing by the Atmosphere of the Earth
(Hindawi Publishing Corporation, 2013-01-01)
The present research studies the motion of a particle or a spacecraft that comes from an orbit around the Sun, which can be elliptic or hyperbolic, and that makes a passage close enough to the Earth such that it crosses ...
ESTIMATION OF THE RADIATION HAZARD TO A SPACECRAFT PASSING THE VAN ALLEN BELTS IN A LOW THRUST TRANSFER
(Univelt Inc, 2017-01-01)
A spacecraft transfer from a low Earth orbit to outside the Earth sphere of influence using solar electric propulsion is considered. The spacecraft crosses the Van Allen belts many times during the transfer, what can damage ...
Effects of the eccentricity on the primames in the gravitational capture phenomenon
(2006-05-23)
Gravitational capture is a characteristic of some dynamical systems in celestial mechanics, as in the elliptic restricted three-body problem that is considered in this paper. The basic idea is that a spacecraft (or any ...
Non-Uniformity of a Pattern and "the Best" Single View 3D Pose Estimator
(Revista Computación y Sistemas; Vol. 2 No. 2 y No. 3, 1998-12-15)
Abstract. Visual model ofan object is presented as composition ofa model-shape function and a model-pattern function. Nonuniformity
ofa pattern is defined as a quadratic form related to the gradient ofintensity. F or ...
Analytical study of the swing-by maneuver in an elliptical system
(2018-02-01)
The objective of the present paper is to derive a set of analytical equations that describe a swing-by maneuver realized in a system of primaries that are in elliptical orbits. The goal is to calculate the variations of ...
Using low Lift-to-Drag spacecraft to perform upper atmospheric Aero-Gravity Assisted maneuvers
(Elsevier, 2022-05-21)
The Gravity Assisted Maneuver has been applied in lots of space missions, to change the spacecraft heliocentric velocity vector and the geometry of the orbit, after the close approach to a celestial body, saving propellant ...
NASAKSN - Mars Odyssey
(NASA, 2016)
NASAKSN - Mars Odyssey
(NASA, 2011)
Influence of apophis’ spin axis variations on a spacecraft during the 2029 close approach with earth
(Editura Acad Romane, 2021-01-01)
Tumbling asteroids belong to a group of objects, whose angular velocity vector is unaligned with any of its principal axes of inertia. This rotation state leads to challenges when modelling a spacecraft's orbit around these ...