Unmodeled perturbation effect on the orbit determination accuracy
Abstract
A mathematical procedure for estimating orbital parameters with better accuracy in the presence of unmodeled perturbations is described. Expressions for the accuracy of the estimate of the given parameters, assuming that the characteristics of the mathematical expectation are known and are in the correlation function for these perturbations, are given. An example dealing with the effect of perturbing acceleration on the accuracy of the determination of pericenter altitude for an osculating hyperbolic orbit of a spacecraft entering the atmosphere of Jupiter is given.
 Publication:

NASA STI/Recon Technical Report N
 Pub Date:
 May 1978
 Bibcode:
 1978STIN...7927197B
 Keywords:

 Mathematical Models;
 Orbital Position Estimation;
 Spacecraft Trajectories;
 Statistical Analysis;
 Minimum Variance Orbit Determination;
 Orbit Calculation;
 Orbit Perturbation;
 Perigees;
 Vectors (Mathematics);
 Astrodynamics