A5021891433- Planetary Science and Exploration
- High-Velocity Impact and Material Behavior
- Isotope Analysis in Ecology
- Astro and Planetary Science
- Additive Manufacturing and 3D Printing Technologies
- Mechanical Engineering and Vibrations Research
- Space Exploration and Technology
- Soil Mechanics and Vehicle Dynamics
- Spacecraft Design and Technology
- Metallurgy and Material Forming
- Scientific Research and Discoveries
- Image Processing and 3D Reconstruction
- Space Satellite Systems and Control
- Rocket and propulsion systems research
- Cryospheric studies and observations
- Winter Sports Injuries and Performance
- Flow Measurement and Analysis
- Distributed and Parallel Computing Systems
- Spacecraft and Cryogenic Technologies
- Algorithms and Data Compression
- Scheduling and Optimization Algorithms
- Fault Detection and Control Systems
- Big Data Technologies and Applications
- Time Series Analysis and Forecasting
- Environmental Monitoring and Data Management
Jet Propulsion Laboratory
2019-2024
Arizona State University
2017-2024
Abstract The quest to find extraterrestrial life is a critical scientific endeavor with civilization-level implications. Icy moons in our solar system are promising targets for exploration because their liquid oceans make them potential habitats microscopic life. However, the lack of precise definition poses fundamental challenge formulating detection strategies. To increase chances unambiguous detection, suite complementary instruments must sample multiple independent biosignatures (e.g.,...
As one of the secondary payloads on space launch systems vehicle, Near-Earth Asteroid (NEA) Scout will demonstrate a low-cost and innovative approach to deep reconnaissance missions. The main objective is image characterize asteroid. spacecraft packages full mission into volume 6U CubeSat. To enable long-term sustained propulsion target, solar sail utilized as system. bus single string, with compact avionics. Guidance control performance meets science requirements margin, but limited power...
Abstract Glen Torridon (GT) is a geomorphic feature of Aeolis Mons (informally Mt. Sharp) in Gale crater, Mars, variably covered by local regolith and wind‐blown basaltic sands. The Mars Reconnaissance Orbiter's Compact Imaging Spectrometer for (CRISM) detected clay minerals GT, making GT target investigation the Science Laboratory (MSL) rover, Curiosity, which confirmed large abundance clays. MSL Dynamic Albedo Neutrons (DAN) instrument observed enrichments bulk subsurface (<50 cm)...
Small spacecraft are continually evolving in capability and mission complexity. As size decreases, physical limitations present new challenges for designers. These include limited instrument aperture, low communications bandwidth, reduced attitude control. Software techniques can address these to retain the capabilities of larger spacecraft, a small form factor. move first order science analysis, which is traditionally completed on ground, onboard spacecraft. This minimize amount data volume...
Ocean worlds such as Europa and Enceladus are high priority targets in the search for past or extant life beyond Earth. Evidence of may be preserved samples surface ice by processes deposition from active plumes, hydrofracturing, thermal convection. Terrestrial produces unique distributions organic molecules that translate into recognizable biosignatures. Identification quantification these compounds can achieved separation science capillary electrophoresis coupled to mass spectrometry...
A new parallel computing paradigm has recently become available, one that combines a PIM (processor in memory) architecture with the use of many lightweight threads, where each thread migrates automatically to memory used by thread. Our effort focuses on producing performance gains this for key machine learning algorithm, Random Forest, are at least linear proportion number cores. Beyond that, we show data distribution groups test samples and trees feature improves run times factor more than...
In this work, we demonstrate an instrumented wheel concept which utilizes a 2D pressure grid, electrochemical impedance spectroscopy (EIS) sensor and machine learning (ML) to extract meaningful metrics from the interaction between surface terrain. These include continuous slip/skid estimation, balance, sharpness for engineering applications. Estimates of hydration, texture, terrain patterns, regolith physical properties such as cohesion angle internal friction are additionally calculated...
The coming decade of planetary missions will have stringent data requirements. Optimizing limited bandwidth is a major motivation for the use onboard science analysis algorithms deep space missions. Under traditional mission operations paradigm, all sent to Earth before follow-on activities are planned by ground operators. This operational model creates challenges time and constrained events. Near Asteroid Scout (NEAScout) prime example with these challenges. NEAScout an interplanetary...
Abstract The Dynamic Albedo of Neutrons (DAN) instrument on the Mars Science Laboratory Curiosity rover primarily measures neutrons that have undergone interactions with rocks and materials in rover's local environment. As ascends Aeolis Mons, it may encounter more extreme topography (e.g., cliffs, gullies, canyons). We present three parts traverse which topography, expressed as average relief relative to rover, is moderately strongly correlated an increase passive thermal neutron count...
Ocean worlds such as Europa and Enceladus are high priority targets in the search for past or extant life beyond Earth. Evidence of may be preserved samples surface ice by processes deposition from active plumes thermal convection. Terrestrial produces unique distributions organic molecules that translate into recognizable biosignatures. Identification quantification these compounds can achieved separation science capillary electrophoresis coupled to mass spectrometry (CE-MS). However, data...
The quest to find extraterrestrial life is a critical scientific endeavor with civilization-level implications. Icy moons in our solar system are promising targets for exploration because their liquid oceans make them potential habitats microscopic life. However, the lack of precise definition poses fundamental challenge formulating detection strategies. To increase chances unambiguous detection, suite complementary instruments must sample multiple independent biosignatures (e.g.,...
The Ocean Worlds Life Surveyor (OWLS) is a field prototype instrument suite designed to autonomously search for evidence of water-based life, developed in preparation potential future missions ocean worlds such as Enceladus and Europa. One included this Capillary Electrophoresis-Electrospray Ionization Mass Spectrometer (CE-ESI MS), which can detect the presence organic molecules other biosignature compounds. Due extreme energy costs involved communication from these distant worlds,...