Covariance Estimation and Autocorrelation of NORAD Two-Line Element Sets - Couverture souple

Osweiler, Victor P

 
9781288326594: Covariance Estimation and Autocorrelation of NORAD Two-Line Element Sets
Couverture souple
ISBN 10 : 1288326599 ISBN 13 : 9781288326594
Editeur : Biblioscholar, 2012

Synopsis

This thesis investigates NORAD two-line element sets (TLE) containing satellite mean orbital elements for the purpose of estimating a covariance matrix and formulating an autocorrelation relationship. Orbit propagation is performed using Simplified General Perturbations Number 4 (SGP4) analytical model as implemented within Satellite Took Kit. For a given satellite, TLEs from a span of two weeks are used to calculate position and velocity differences of estimated state vectors in order to characterize their variance behavior and compute a covariance matrix for the most recent TLE. Six satellites and eight time spans are investigated, with all state vector differences evaluated in satellite-based coordinate systems. An autocorrelation relationship for each satellite is generated to characterize confidence levels of the orbit predictions. Trends in the deterministic dynamics and errors in the model are observed and discussed. Covariance matrix estimates and associated TLEs are presented.

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Éditeur
Biblioscholar
Date d'édition
2012
Langue
anglais
ISBN 10 
1288326599
ISBN 13 
9781288326594
Reliure
Broché
Nombre de pages
134
Coordonnées du fabricant
non disponible
Personne responsable
non disponible