Initial Orbit Determination Using Relative Position Measurements

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AAS-23-350.pdf (3.14 MB)
Author(s)
Henry, Sébastien
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Daniel Guggenheim School of Aerospace Engineering
The Daniel Guggenheim School of Aeronautics was established in 1931, with a name change in 1962 to the School of Aerospace Engineering
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https://hdl.handle.net/1853/74899
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.
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2023-08
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