Results 81 to 90 of about 1,847 (222)

Some applications of Lie groups in astrodynamics

open access: yes, 1983
Differential equations that arise in astrodynamics are examined from the standpoint of Lie group theory. A summary of the Lie method is given for first degree differential equations.
Jackson, A. A.
core  

MGA trajectory planning with an ACO-inspired algorithm [PDF]

open access: yes, 2009
Given a set of celestial bodies, the problem of finding an optimal sequence of gravity assist manoeuvres, deep space manoeuvres (DSM) and transfer arcs connecting two or more bodies in the set is combinatorial in nature.
Vasile, M., Ceriotti, M.
core   +1 more source

Dynamics in the Vicinity of the Stable Halo Orbits. [PDF]

open access: yesJ Astronaut Sci, 2023
Lujan D, Scheeres DJ.
europepmc   +1 more source

The Unified State Model. Derivation and Applications in Astrodynamics and Navigation.

open access: yes, 2010
Astrodynamics and Space MissionsAerospace ...
Vittaldev, V. (author)
core  

A multi-criteria assessment of deflection methods for dangerous NEOs [PDF]

open access: yes, 2007
Over the last few years, the possible scenario of an asteroid threatening to impact the Earth has stimulated an intense debate among the scientific community about possible deviation methods.
Colombo, Camilla   +10 more
core   +1 more source

Astrodynamics-optimization theory and guidance theory Research achievements review series no. 15-16

open access: yes, 1965
Review of research achievements in astrodynamics, optimization theory, and guidance ...

core  

Arctic Climate Variability and Trends from Satellite Observations

open access: yesAdvances in Meteorology, 2012
Arctic climate has been changing rapidly since the 1980s. This work shows distinctly different patterns of change in winter, spring, and summer for cloud fraction and surface temperature.
Xuanji Wang   +5 more
doaj   +1 more source

Exploring Transfers between Earth-Moon Halo Orbits via Multi-Objective Reinforcement Learning. [PDF]

open access: yesIEEE Aerosp Conf, 2021
Sullivan CJ   +4 more
europepmc   +1 more source

Fully Numerical Methods for Continuing Families of Quasi-Periodic Invariant Tori in Astrodynamics

open access: yes, 2018
Quasi-periodic invariant tori are of great interest in astrodynamics because of their capability to further expand the design space of satellite missions.
Daniel J. Scheeres   +5 more
core   +1 more source

New developments in astrodynamics algorithms for autonomous rendezvous

open access: yes, 1991
A the core of any autonomous rendezvous guidance system must be two algorithms for solving Lambert's and Kepler's problems, the two fundamental problems in classical astrodynamics.
Klumpp, Allan R.
core  

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