Improved GPS-based Satellite Relative Navigation Using Femtosecond Laser Relative Distance Measurements [PDF]
Journal of Astronomy and Space Sciences, 2016 This study developed an approach for improving Carrier-phase Differential Global Positioning System (CDGPS) based realtime satellite relative navigation by applying laser baseline measurement data.
Hyungjik Oh +4 more
doaj +1 more source
Parallel Evaluation of Chebyshev Approximations: Applications in Astrodynamics
The Journal of the astronautical sciences, 2022 Approximations based on Chebyshev polynomials have several astrodynamic applications. The performance of these approximations can be improved by parallel implementations exploiting parallel architectures, such as OpenMP and CUDA.
A. Atallah, A. Younes
semanticscholar +1 more source
Three-dimensional Lagrangian coherent structures in astrodynamics using differential algebra
, 2022 Lagrangian Coherent Structures (LCS) have received attention for profiling dynamical behaviour and identifying separatrices between dynamical features in systems with arbitrary time-dependence.
Wittig, Alexander, Tyler, Jack
core +1 more source
Preliminary Test of Adaptive Neuro-Fuzzy Inference System Controller for Spacecraft Attitude Control [PDF]
Journal of Astronomy and Space Sciences, 2012 The problem of spacecraft attitude control is solved using an adaptive neuro-fuzzy inference system (ANFIS). An ANFIS produces a control signal for one of the three axes of a spacecraft’s body frame, so in total three ANFISs are constructed for 3-axis ...
Sung-Woo Kim +2 more
doaj +1 more source
A Radio Science Experiment for Dragonfly to Investigate Titan's Rotation and Interior Structure
Geophysical Research Letters, Volume 53, Issue 20, 28 October 2026.Abstract NASA's mission Dragonfly to Titan is scheduled for launch in 2028 with arrival in 2034 to study Titan's prebiotic chemistry and habitability. We propose a radio science experiment for Dragonfly, in which radiometric tracking of the rotorcraft from the Deep Space Network, already baselined for communications and navigation, is used as a ...
Flavio Petricca, Dustin Buccino
wiley +1 more source
Evolutionary Approach to Lambert’s Problem for Non-Keplerian Spacecraft Trajectories
Aerospace, 2017 In this paper, we use differential evolution (DE), with best-evolved results refined using a Nelder–Mead optimization, to solve boundary-value complex problems in orbital mechanics relevant to low Earth orbits (LEO).
David W. Hinckley, Darren L. Hitt
doaj +1 more source
Application of Analytic Solution in Relative Motion to Spacecraft Formation Flying in Elliptic Orbit [PDF]
Journal of Astronomy and Space Sciences, 2008 The current paper presents application of a new analytic solution in general relative motion to spacecraft formation flying in an elliptic orbit. The calculus of variations is used to analytically find optimal trajectories and controls for the given ...
Hancheol Cho +2 more
doaj +1 more source
Mission Design and Early Navigation Operations for the Lunar Trailblazer Mission
Earth and Space Science, Volume 13, Issue 7, July 2026.Abstract Lunar Trailblazer is a smallsat mission launched on 27 February 2025 as a secondary payload with the Intuitive Machines IM‐2 mission. After insertion into a near‐polar circular orbit around the Moon, the mission's goal was to search and characterize lunar water, primarily looking for ice in permanently shadowed craters and water bound in ...
Gregory Lantoine +13 more
wiley +1 more source
Mathematics, 2020 Obtaining the inverse of a nonlinear monotonic function f(x) over a given interval is a common problem in pure and applied mathematics, the most famous example being Kepler’s description of orbital motion in the two-body approximation.
Daniele Tommasini, David N. Olivieri
doaj +1 more source
An Earth-Moon Transfer Trajectory Design and Analysis Considering Spacecraft’s Visibility from Daejeon Ground Station at TLI and LOI Maneuvers [PDF]
Journal of Astronomy and Space Sciences, 2010 The optimal Earth-Moon transfer trajectory considering spacecraft’s visibility from the Daejeon ground station visibility at both the trans lunar injection (TLI) and lunar orbit insertion (LOI) maneuvers is designed.
Jin Woo +4 more
doaj +1 more source