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Updated: Jun 28, 2026

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LONEStar: The Lunar Flashlight Optical Navigation Experiment.

Michael Krause1, Ava Thrasher1, Priyal Soni1

  • 1Guggenheim School of Aerospace Engineering, Georgia Institute of Technology, Atlanta, GA 30332 USA.

The Journal of the Astronautical Sciences
|July 18, 2024
PubMed
Summary
This summary is machine-generated.

The Lunar Flashlight Optical Navigation Experiment with a Star tracker (LONEStar) demonstrated successful heliocentric navigation using planet-based optical observations. It achieved instantaneous and dynamic triangulation, advancing deep space navigation capabilities.

Keywords:
Image processingOptical navigationSpace explorationSpacecraft operationsTriangulation

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Area of Science:

  • Space Science
  • Astrodynamics
  • Optical Navigation

Background:

  • The Lunar Flashlight (LF) mission, launched in December 2022, was a NASA technology demonstration.
  • An anomaly redirected LF into heliocentric space, leading to an extended mission managed by Georgia Tech.

Purpose of the Study:

  • To demonstrate advanced technology objectives, specifically the Lunar flashlight Optical Navigation Experiment with a Star tracker (LONEStar).
  • To perform on-orbit calibration and optical navigation (OPNAV) experiments in a heliocentric environment.

Main Methods:

  • Processed nearly 400 images of celestial bodies, including star fields, Earth, Moon, Mercury, Mars, Jupiter, and Saturn.
  • Conducted on-orbit calibration of the optical instrument for navigation experiments.

Main Results:

  • Achieved the first on-orbit demonstrations of heliocentric navigation using only optical observations of planets.
  • Successfully demonstrated instantaneous triangulation using the LOST algorithm with simultaneous sightings of two planets.
  • Successfully demonstrated dynamic triangulation with sequential sightings of multiple planets.

Conclusions:

  • LONEStar successfully validated advanced optical navigation techniques in deep space.
  • The experiment proved the feasibility of using planetary optical data for heliocentric navigation.