Title:
Initial Orbit Determination Using Relative Position Measurements

Thumbnail Image
Author(s)
Henry, Sébastien
Christian, John A.
Authors
Advisor(s)
Advisor(s)
Editor(s)
Associated Organization(s)
Series
Supplementary to
Abstract
This work explores the problem of initial orbit determination (IOD) using relative position measurements between a pair of spacecraft in Keplerian orbits. We first show that the solution to this problem is not unique, even under certain classes of perturbations. We propose an algorithm to retrieve the inertial state of both orbiting spacecraft using the relative acceleration and Lambert's problem. Various options are compared to estimate the relative acceleration from a set of relative position measurements. Simulation results suggest that the proposed IOD algorithm is suitable for onboard navigation filter (re)initialization, and can thus improve constellation and formation-flying mission autonomy.
Sponsor
Date Issued
2023-08
Extent
Resource Type
Text
Resource Subtype
Paper
Rights Statement
Unless otherwise noted, all materials are protected under U.S. Copyright Law and all rights are reserved