Joshua Lyzhoft
A5058927752- Astro and Planetary Science
- Planetary Science and Exploration
- Space Satellite Systems and Control
- Gamma-ray bursts and supernovae
- High-pressure geophysics and materials
- Spacecraft Dynamics and Control
- High-Velocity Impact and Material Behavior
- Guidance and Control Systems
- Fluid Dynamics Simulations and Interactions
- Inertial Sensor and Navigation
- Nuclear Physics and Applications
- Isotope Analysis in Ecology
- Stellar, planetary, and galactic studies
- earthquake and tectonic studies
- Marine and environmental studies
- Economic Sanctions and International Relations
- Solar and Space Plasma Dynamics
- Rangeland Management and Livestock Ecology
- Infrared Target Detection Methodologies
- Surface Roughness and Optical Measurements
- Spacecraft and Cryogenic Technologies
- Environmental and Sediment Control
- Spacecraft Design and Technology
- Earthquake Detection and Analysis
- Electromagnetic Launch and Propulsion Technology
Goddard Space Flight Center
2017-2025
National Aeronautics and Space Administration
2024
Malin Space Science Systems (United States)
2020
Iowa State University
2013-2018
Abstract The NASA Double Asteroid Redirection Test (DART) mission performed a kinetic impact on asteroid Dimorphos, the satellite of binary (65803) Didymos, at 23:14 UTC 26 September 2022 as planetary defence test 1 . DART was first hypervelocity experiment an size and velocity scales relevant to defence, intended validate means deflection. Here we report determination momentum transferred by impact. On basis change in orbit period 2 , find instantaneous reduction Dimorphos’s along-track...
Abstract 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. For successful Touch And Go acquisition maneuver, shape mass of needed be known precisely. Here we use combination radiometric, image landmark, laser altimetry data determine Bennu’s mass, shape, orientation simultaneously verify existing models thereof. Our determination consists...
<title>Abstract</title> Kinetic deflection is a planetary defense technique that delivers spacecraft momentum to small body deviate its course from Earth. The efficiency depends strongly on the impactor and target. Among them, contribution of global curvature was poorly understood. ejecta plume created by NASA's DART impact target asteroid, Dimorphos, exhibited an elliptical shape almost aligned along north-south direction. Here, we identify this resulted target’s curvature, reducing...
Abstract When optical navigation images acquired by the OSIRIS‐REx (Origins, Spectral Interpretation, Resource Identification, and Security‐Regolith Explorer) mission revealed periodic ejection of particles from asteroid (101955) Bennu, it became a priority to quickly identify track these objects for both spacecraft safety scientific purposes. The large number criticality rendered time‐intensive manual inspection impractical. We present autonomous techniques particle detection tracking that...
This paper presents the performance characterization of an infrared sensor and selected optics for asteroid intercept vehicle traveling at hypervelocity speeds. The feasibility using IR ballistic missiles has been demonstrated by Raytheon’s Exoatmospheric Kill Vehicle (EKV). In our previous work, impact guidance was studied mission. However, optical telescope design mission not considered. this paper, further investigation in how will effect precision location Hypervelocity Asteroid...
Abstract The NASA Double Asteroid Redirection Test (DART) mission performed a kinetic impact on asteroid Dimorphos, the satellite of binary (65803) Didymos, at 23:14 UTC September 26, 2022 as planetary defense test 1 . DART was first hypervelocity experiment an size and velocity scales relevant to defense, intended validate means deflection. Here we report determination momentum transferred by impact. Based change in orbit period 2 , find instantaneous reduction Dimorphos’s along-track...
During its initial orbital phase in early 2019, the Origins, Spectral Interpretation, Resource Identification, and Security-Regolith Explorer (OSIRIS-REx) asteroid sample return mission detected small particles apparently emanating from surface of near-Earth (101955) Bennu optical navigation images. Identification characterization physical dynamical properties these objects became a priority terms both spacecraft safety scientific investigation. Traditional techniques for particle...