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Attitude stabilization of a rigid spacecraft in the geomagnetic field
(Elsevier B.V., 2007-01-01)
An analytical method is proposed to study the attitude stability of a triaxial spacecraft moving in a circular Keplerian orbit in the geomagnetic field. The method is developed based on the electrodynamics effect of the ...
Planar powered Swing-By maneuvers to brake a spacecraft
(Springer, 2018-12-01)
The Swing-By maneuver is a technique used in many space mission to modify the trajectory of a spacecraft. The most usual goal is to increase the energy of the spacecraft, but it is also possible to reduce this energy. An ...
Effects of the rotation of a spacecraft in an atmospheric close approach with the Earth
(2020-05-01)
A maneuver called “Aerogravity Assisted” is known in the literature to increase the energy gains given by a close approach between a spacecraft and a planet using the atmosphere of the planet. Several previous papers showed ...
Analytical study of the powered Swing-By maneuver for elliptical systems and analysis of its efficiency
(2018-07-01)
Analytical equations describing the velocity and energy variation of a spacecraft in a Powered Swing-By maneuver in an elliptic system are presented. The spacecraft motion is limited to the orbital plane of the primaries. ...
Spacecraft motion around artificial equilibrium points
(2018-02-01)
The main goal of this paper is to describe the motion of a spacecraft around an artificial equilibrium point in the circular restricted three-body problem. The spacecraft is under the gravitational influence of the Sun and ...
Does the Velocity of Light Depend on the Source Movement?
(University of New Mexico. Department of Mathematics and Science, 2016-10)
Data from spacecrafts tracking exhibit many anomalies that suggest the dependence of the speed of electromagnetic radiation with the motion of its source. This dependence is different from that predicted from emission ...
Effects of the eccentricity of the primaries in powered Swing-By maneuvers
(2017-04-15)
The present paper studies the powered Swing-By maneuver when performed in an elliptical system of primaries. It means that there is a spacecraft travelling in a system governed by the gravity fields of two bodies that are ...
Batch, sequential and hybrid approaches to spacecraft sensor alignment estimation
(Amer Astronautical Soc, 2003-07-01)
Two Kalman-filter formulations are presented for the estimation of spacecraft sensor misalignments from inflight data. In the first the sensor misalignments are part of the filter state variable; in the second, which we ...
Dynamics of a spacecraft and normalization around Lagrangian points in the Neptune-Triton system
(Elsevier B.V., 2008-11-17)
The problem of a spacecraft orbiting the Neptune-Triton system is presented. The new ingredients in this restricted three body problem are the Neptune oblateness and the high inclined and retrograde motion of Triton. First ...
Effects of the Eccentricity of a Perturbing Third Body on the Orbital Correction Maneuvers of a Spacecraft
(Hindawi Publishing Corporation, 2014-01-01)
The fuel consumption required by the orbital maneuvers when correcting perturbations on the orbit of a spacecraft due to a perturbing body was estimated. The main goals are the measurement of the influence of the eccentricity ...