The Journal of the Astronautical Sciences

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Energy Approach Algorithm for Attitude Determination from Vector Observations
The Journal of the Astronautical Sciences - Tập 45 - Trang 41-55 - 2020
Daniele Mortari
This paper presents a new mathematical approach to the Wahba’s problem of optimal estimation of spacecraft attitude based on vector observations. The Wahba’s problem is demonstrated here to be equivalent to the problem of finding the static equilibrium of a rigid body constrained by a set of spherical springs. The equilibrium attitude of such a body is therefore derived by either setting to zero t...... hiện toàn bộ
Modeling and Control of Satellite Formations in High Eccentricity Orbits
The Journal of the Astronautical Sciences - Tập 52 - Trang 149-168 - 2020
Prasenjit Sengupta, Srinivas R. Vadali, Kyle T. Alfriend
An analytical method has been developed to propagate the relative motion between two satellites in highly elliptic orbits. The method is kinematically exact. It maintains a high degree of accuracy even in the presence of J2 perturbations arising from the nonspherical nature of the Earth. The true anomaly of the reference satellite is treated as the independent variable, instead of time. The relati...... hiện toàn bộ
An Analytical Theory for Orbit Determination
The Journal of the Astronautical Sciences - Tập 49 Số 2 - Trang 345-361 - 2001
George H. Born, David Goldstein, B. Thompson
An Adaptive Analytic Continuation Method for Computing the Perturbed Two-Body Problem State Transition Matrix
The Journal of the Astronautical Sciences - - 2020
Tahsinul Haque Tasif, Tarek A. Elgohary
AbstractIn this work, the Taylor series based technique, Analytic Continuation is implemented to develop a method for the computation of the gravity and drag perturbed State Transition Matrix (STM) incorporating adaptive time steps and expansion order. Analytic Continuation has been developed for the two-body problem based on two scalar variables f... hiện toàn bộ
Systematic Construction of Solar-Sail-Based Stopover Cyclers
The Journal of the Astronautical Sciences - Tập 70 - Trang 1-22 - 2023
Narcís Miguel, Camilla Colombo, Florio Dalla Vedova
This work addresses the systematic construction of solar-sail-based stopover cyclers between two bodies. The design of stopover cyclers is based on finding adequate body-to-body transfers with the zero sphere of influence assumption. These transfers strongly depend upon physical parameters that may be different in each trajectory of which the cycler consists. If the solar radiation pressure is the...... hiện toàn bộ
Radar and Optical Study of Defunct Geosynchronous Satellites
The Journal of the Astronautical Sciences - Tập 68 Số 3 - Trang 728-749 - 2021
Conor J. Benson, C. J. Naudet, Daniel J. Scheeres, Joseph S. Jao, L. G. Snedeker, W. H. Ryan, E. V. Ryan, Marc A. Silva, Jeffrey K. Lagrange, Scott Bryant, P. Tsao, Dennis K. Lee, U. A. Yıldız, Hieu Duy Nguyen
SMART Attitude Acquisition and Control
The Journal of the Astronautical Sciences - Tập 46 - Trang 379-393 - 2020
M. Pastena, M. Grassi
This paper deals with the attitude acquisition and control for the Italian Scientific Microsatellite for Advanced Research and Technology. Since the microsatellite is aimed at remote sensing applications, three-axis fine attitude control (0.1°–0.01°) during station keeping is required. The attitude acquisition technique exploits the magnetic control to despin the microsatellite initial tumbling an...... hiện toàn bộ
Simulation on Flexible Multibody System with Topology Changes for In-space Assembly
The Journal of the Astronautical Sciences - - 2024
Yifan Qi, Minghe Shan
In-space assembly (ISA) has become a potential solution to building large space structures. However, the motion of an ISA system will experience a sudden topology change when two flexible modules are assembled together thus causing the whole system to oscillate. Therefore, understanding the dynamics of an ISA system during and after assembly is of importance. This paper presents a methodology for ...... hiện toàn bộ
A Gravity Assist Mapping Based on Gaussian Process Regression
The Journal of the Astronautical Sciences - - 2021
Yuxin Liu, R. Noomen, Pieter Visser
AbstractWe develop a Gravity Assist Mapping to quantify the effects of a flyby in a two-dimensional circular restricted three-body situation based on Gaussian Process Regression (GPR). This work is inspired by the Keplerian Map and Flyby Map. The flyby is allowed to occur anywhere above 300 km altitude at the Earth in the system of Sun-(Earth+Moon)-spacecraft, wher...... hiện toàn bộ
Identification of Partially Resolved Objects in Space Imagery with Convolutional Neural Networks
The Journal of the Astronautical Sciences - - 2020
Christopher A. Ertl, John A. Christian
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