Results 261 to 270 of about 4,499,219 (309)

Initial Orbit Determination Based on Intelligent Optimization Algorithm

Chinese Astronomy and Astrophysics, 2023
Classical methods for initial orbit determination (IOD) include Laplace method, Gauss method and their variations. In addition to this, based on the characteristic of optical observation data nowadays, experts propose some other IOD methods, like Double ...
LIU Xin, HOU Xi-yun, LIU Lin, GAN Qing-bo, YANG Zhi-tao   +4 more
openaire   +2 more sources

Initial orbit determination using multiple observations

Celestial Mechanics and Dynamical Astronomy, 2010
A novel approach for initial orbit determination based on multiple angles-only observations is presented. The proposed technique is iterative and uses Lagrangian coefficients, f and g. The proposed method does not show singularity for the coplanar cases.
Daniele Mortari
exaly   +2 more sources

Dealing with Uncertainties in Initial Orbit Determination

, 2016
A method to deal with uncertainties in initial orbit determination (IOD) is presented. This is based on the use of Taylor differential algebra (DA) to nonlinearly map the observation uncertainties from the observation space to the state space. When a minimum set of observations is available, DA is used to expand the solution of the IOD problem in ...
ARMELLIN, ROBERTO, DI LIZIA, PIERLUIGI, Zanetti, R.   +2 more
openaire   +2 more sources

Doppler-Only Initial Orbit Determination for an Orbiting Transmitter

AIAA SCITECH 2022 Forum, 2022
John Christian, Christopher Ertl, Kenneth Horneman, Alan Lovell   +3 more
openaire   +2 more sources

Gaussian Mixture Batch Estimation for Initial Orbit Determination

The Journal of the Astronautical Sciences
Kyle J. Craft, Kyle J. DeMars
openaire   +2 more sources

Probabilistic Initial Orbit Determination and Object Tracking in Cislunar Space Using Passive Radio Frequency Sensors

AMOS 2023 Technical Papers, 2023
In this paper we build on the work we presented at the 2022 AMOS Conference [1]. In that work, we focused on the processing of optical observations from spacecraft orbiting in Cislunar space.
Erin Griggs, Matt Schierholtz, Islam Hussein, M. Bolden, Kyle Charles, Holly Borowski   +5 more
semanticscholar   +1 more source

Neural Network–Assisted Initial Orbit Determination Method for Libration Point Orbits

Journal of Aerospace Engineering
Xingyu Zhou, Xiangyu Li, Zhe Zhang
openaire   +2 more sources

Multiple solutions of initial orbit determination in cislunar space

Advances in Space Research
Xin Liu, Xiyun Hou, Roberto Armellin
openaire   +2 more sources

Statistical initial orbit determination

Journal of Spacecraft and Rockets, 1992
For the ballistic missile initial orbit determination problem in particular, the concept of 'launch folders' is extended. This allows to decouple the observational data from the initial orbit determination problem per se. The observational data is only used to select among the possible orbital element sets in the group of folders.
L. G. Taff, B. Belkin, G. A. Schweiter, K. Sommar   +3 more
openaire   +1 more source

Initial Orbit Determination Utilizing Solution Group Optimization

IEEE Transactions on Aerospace and Electronic Systems, 2020
This paper investigates the use of space-based tracking data to determine the initial orbit of low-earth orbit (LEO) target satellites. A series of tracking data without distance information of a LEO target satellite can be provided by a space-based imaging observer and a target detection process. First, Gauss’ method is applied to a series of a target
Jing Hu, Binzhe Li, Jun Li 0125
openaire   +2 more sources