Autonomous Detection of Particles and Tracks in Optical Images

@article{Liounis2019AutonomousDO,
  title={Autonomous Detection of Particles and Tracks in Optical Images},
  author={Andrew J. Liounis and J. Small and Jason C. Swenson and Joshua R. Lyzhoft and Benjamin W. Ashman and Kenneth M. Getzandanner and Michael C. Moreau and Coralie D. Adam and Jason M. Leonard and Derek S. Nelson and John Y. Pelgrift and Brent J. Bos and Steven R. Chesley and Carl W. Hergenrother and Dante S. Lauretta},
  journal={Earth and Space Science},
  year={2019},
  volume={7}
}
When optical navigation images acquired by the OSIRIS‐REx (Origins, Spectral Interpretation, Resource Identification, and Security‐Regolith Explorer) mission revealed the periodic ejection of particles from asteroid (101955) Bennu, it became a mission priority to quickly identify and track these objects for both spacecraft safety and scientific purposes. The large number of particles and the mission criticality rendered time‐intensive manual inspection impractical. We present autonomous… 
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9 Citations
Background Citations
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Methods Citations
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9 Citations

MONITORING THE OPERATIONAL ENVIRONMENT OF ACTIVE ASTEROID (101955) BENNU

The OSIRIS-REx spacecraft has observed the release of small particles from the surface of asteroid (101955) Bennu. New techniques and tools have been developed to detect, track, and characterize the…

INDEPENDENT OPTICAL NAVIGATION PROCESSING FOR THE OSIRIS-REX MISSION USING THE GODDARD IMAGE ANALYSIS AND NAVIGATION TOOL

The OSIRIS-REx mission to the asteroid (101955) Bennu heavily relies on optical navigation to provide relative state information between the asteroid and the spacecraft. These measurements enable…

Initial Orbit Determination and Event Reconstruction From Estimation of Particle Trajectories About (101955) Bennu

Current results pertaining to the identification of particle tracks, an evaluation of the estimated orbits and the excess velocity necessary to induce the particle ejection from the surface, and the uncertainty quantification of the ejection location are presented.

Reconstruction of Bennu Particle Events From Sparse Data

This newly developed technique offers the capacity to meaningfully constrain the properties of particle ejection events from limited data and comparison with higher‐fidelity orbit determination solutions for the events with sufficient observations demonstrates the validity of this approach.

Introduction to the Special Issue: Exploration of the Activity of Asteroid (101955) Bennu

Of the potential mechanisms behind this activity that were investigated in focused studies, meteoroid impacts, thermal fracturing, and ricochet—but not water ice sublimation—were found to be consistent with observations, suggesting that many near‐Earth asteroids may exhibit activity that has gone unnoticed thus far.

Trajectory Estimation for Particles Observed in the Vicinity of (101955) Bennu

We analyze the trajectories of 313 particles seen in the near‐Bennu environment between December 2018 and September 2019. Of these, 65% follow suborbital trajectories, 20% undergo more than one…

A Bibliometric Perspective Survey of Astronomical Object Tracking System

The survey and bibliometric analysis of Astronomical Object Tracking from the Scopus database is discussed in analyzing the research by area, influential authors, institutions, countries, and funding agency.

Mass and Shape Determination of (101955) Bennu Using Differenced Data from Multiple OSIRIS-REx Mission Phases

The Origins, Spectral Interpretation, Resource Identification, and Security-Regolith Explorer (OSIRIS-REx) mission collected a sample from the rubble-pile asteroid (101955) Bennu for return to Earth.…

Photometry of Particles Ejected From Active Asteroid (101955) Bennu

Near‐Earth asteroid (101955) Bennu is an active asteroid experiencing mass loss in the form of ejection events emitting up to hundreds of millimeter‐ to centimeter‐scale particles. The close…

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