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…
9 Citations
MONITORING THE OPERATIONAL ENVIRONMENT OF ACTIVE ASTEROID (101955) BENNU
- Physics
- 2019
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
- Physics
- 2019
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
- PhysicsEarth and space science
- 2020
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
- PhysicsEarth and space science
- 2020
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
- Physics, GeologyJournal of geophysical research. Planets
- 2020
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
- PhysicsJournal of Geophysical Research: Planets
- 2020
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
- Physics, Computer Science
- 2021
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
- Physics, GeologyThe Planetary Science Journal
- 2021
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
- Physics, GeologyJournal of Geophysical Research: Planets
- 2020
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…
References
SHOWING 1-10 OF 51 REFERENCES
Initial Orbit Determination and Event Reconstruction From Estimation of Particle Trajectories About (101955) Bennu
- PhysicsEarth and space science
- 2020
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
- PhysicsEarth and space science
- 2020
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.
IN-FLIGHT CALIBRATION OF THE OSIRIS-REX OPTICAL NAVIGATION IMAGERS
- Physics
- 2018
Navigation for solar system exploration missions often requires optical navigation techniques in order to achieve the orbit determination precision necessary to fulfill mission science objectives.…
Episodes of particle ejection from the surface of the active asteroid (101955) Bennu
- Physics, GeologyScience
- 2019
The properties and behavior of particles ejected from Bennu are analyzed to determine the possible mechanisms of ejection and provide understanding of the broader population of active asteroids.
Use Of A Scanning Ccd To Discriminate Asteroid Images Moving In A Field Of Stars
- Physics, GeologyAstronomical Telescopes and Instrumentation
- 1986
We are using a charge-coupled device (CCD) in a scanning mode to find new asteroids and recover known asteroids and comet nuclei. Current scientific programs include recovery of asteroids and comet…
Near‐Earth Asteroid Tracking (NEAT) Program
- Physics, Geology
- 1997
ABSTRACT: The discoveries of near‐Earth asteroids (NEAs) and comets have increased enormously over the last 10–20 years. This is a consequence, in large part, of the success of programs that have…
A grid algorithm for autonomous star identification
- PhysicsIEEE Transactions on Aerospace and Electronic Systems
- 1997
An autonomous star identification algorithm is described that is simple and requires less computer resources than other such algorithms and compares very favorably with other algorithms in the literature.
The dynamic geophysical environment of (101955) Bennu based on OSIRIS-REx measurements
- Geology, PhysicsNature astronomy
- 2019
Combining the measured Bennu mass and shape obtained during the Preliminary Survey phase of the OSIRIS-REx mission, a notable transition is found in Bennu’s surface slopes within its rotational Roche lobe, defined as the region where material is energetically trapped to the surface.
The Search for Distant Objects in the Solar System Using Spacewatch
- Physics, Geology
- 2007
We have completed a low-inclination ecliptic survey for distant and slow-moving bright objects in the outer solar system. This survey used data taken over 34 months by the University of Arizona's…
Touch And Go Camera System (TAGCAMS) for the OSIRIS-REx Asteroid Sample Return Mission
- Physics
- 2018
The TAGCAMS camera, StowCam, provides imagery to assist with and confirm proper stowage of the asteroid sample, and how it is used to support critical OSIRIS-REx operations is provided.