Results 91 to 100 of about 2,974 (210)

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

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

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

Relative Orbit Control Algorithms and Scenarios for the Inertial Alignment Hold Demonstration Mission by CubeSat Formation Flying

open access: yesAerospace
CANYVAL-C is a formation-flying mission that demonstrates a coronagraph utilizing two CubeSats. The coronagraph is a space telescope that blocks sunlight to examine the overcast regions around the sun. It is composed of optical and occult segments.
Soobin Jeon   +2 more
doaj   +1 more source

Liquid Apogee Engine Burn Plans for The KOREASAT-3 [PDF]

open access: yesJournal of Astronomy and Space Sciences, 1998
The apogee manoeuvre of is basic elliptical orbit transfer converting orbit plane. The KOREASAT-3 is planed for multi-burn manoeuvres using the liquid apogee engine while the used the apogee kick motor that executes a single burn in the apogee of ...
Jae-Cheol Yoon   +4 more
doaj  

A Comparative Study of Programming Languages for Next-Generation Astrodynamics Systems

open access: yes, 2016
Due to the computationally intensive nature of astrodynamics tasks, astrodynamicists have relied on compiled programming languages such as Fortran for the development of astrodynamics software.
McLean, Frazer   +3 more
core  

Introducing the Azimuth Cutoff as an Independent Measure for Characterizing Sea-State Dynamics in SAR Altimetry

open access: yesRemote Sensing
This study presents the first azimuth cutoff analysis in Synthetic Aperture Radar (SAR) altimetry, aiming to assess its applicability in characterizing sea-state dynamics.
Ourania Altiparmaki   +6 more
doaj   +1 more source

Approximate Solutions to Nonlinear Optimal Control Problems in Astrodynamics

open access: yes, 2013
A method to solve nonlinear optimal control problems is proposed in this work. The method implements an approximating sequence of time-varying linear quadratic regulators that converge to the solution of the original, nonlinear problem.
TOPPUTO, FRANCESCO   +1 more
core   +1 more source

A Novel Algorithm for Precise Orbit Determination Using a Single Satellite Laser Ranging System Within a Single Arc for Space Surveillance and Tracking

open access: yesAerospace
A satellite laser ranging (SLR) system uses lasers to measure the range from ground stations to space objects with millimeter-level precision. Recent advances in SLR systems have increased their use in space surveillance and tracking (SST).
Dong-Gu Kim, Sang-Young Park, Eunji Lee
doaj   +1 more source

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