A5070433265- Planetary Science and Exploration
- Astro and Planetary Science
- Space Exploration and Technology
- Spacecraft and Cryogenic Technologies
- Distributed systems and fault tolerance
- Software Testing and Debugging Techniques
- Space Science and Extraterrestrial Life
- AI-based Problem Solving and Planning
- Engineering and Test Systems
- Atmospheric Ozone and Climate
- Software Reliability and Analysis Research
- Spacecraft Design and Technology
- Scientific Research and Discoveries
- Distributed and Parallel Computing Systems
- Fault Detection and Control Systems
- Calibration and Measurement Techniques
- Open Source Software Innovations
- Software Engineering Research
- Seismic Waves and Analysis
- Advanced Data Processing Techniques
- Space exploration and regulation
- Advanced Chemical Sensor Technologies
- Formal Methods in Verification
- Knowledge Management and Sharing
- Isotope Analysis in Ecology
Ames Research Center
2011-2024
Bureau of Economic Analysis
2020
Palo Alto Research Center
1992-1998
Massachusetts Institute of Technology
1982-1986
Watering the Moon About a year ago, spent upper stage of an Atlas rocket was deliberately crashed into crater at south pole Moon, ejecting plume debris, dust, and vapor. The goal this event, Lunar Crater Observation Sensing Satellite (LCROSS) experiment, to search for water other volatiles in soil one coldest places on Moon: permanently shadowed region within Cabeus crater. Using ultraviolet, visible, near-infrared spectroscopy data from accompanying craft, Colaprete et al. (p. 463 ; see...
Watering the Moon About a year ago, spent upper stage of an Atlas rocket was deliberately crashed into crater at south pole Moon, ejecting plume debris, dust, and vapor. The goal this event, Lunar Crater Observation Sensing Satellite (LCROSS) experiment, to search for water other volatiles in soil one coldest places on Moon: permanently shadowed region within Cabeus crater. Using ultraviolet, visible, near-infrared spectroscopy data from accompanying craft, Colaprete et al. (p. 463 ; see...
Despite being trace constituents of the lunar exosphere, sodium and potassium are most readily observed species due to their bright line emission. Measurements these by Ultraviolet Visible Spectrometer (UVS) on Lunar Atmosphere Dust Environment Explorer (LADEE) have revealed unambiguous temporal spatial variations indicative a strong role for meteoroid bombardment surface composition in determining local time dependence Moon's exosphere. Observations show distinct day (monthly) cycles both...
When planning planetary rover missions it is useful to develop intuition and skills driving in, quite literally, alien environments before incurring the cost of reaching said locales. Simulators make possible operate in that have physical characteristics target locations without expense overhead extensive tests. To end, NASA Ames Open Robotics collaborated on a Lunar simulator based open source Gazebo simulation platform leveraging ROS (Robotic Operating System)components. The was integrated...
Abstract The lunar permanently shadowed regions (PSRs) are expected to host large quantities of water-ice, which key for sustainable exploration the Moon and beyond. In near future, NASA other entities plan send rovers humans characterize water-ice within PSRs. However, there exists only limited information about small-scale geomorphology distribution ice PSRs because orbital imagery captured date lacks sufficient resolution and/or signal. this paper, we develop validate a new method...
The tendency among psychologists has been to explain complex behavior as a linking together of the simple reflexes which are present in new-born child. Recently it discovered that themselves differentiated out more generalized activities involving coordination bod
Article Free Access Share on The social-technical design circle Authors: Vicki L. O'Day Xerox Palo Alto Research Center, 3333 Coyote Hill Road, Alto, CA CAView Profile , Daniel G. Bobrow Mark Shirley Authors Info & Claims CSCW '96: Proceedings of the 1996 ACM conference Computer supported cooperative workNovember Pages 160–169https://doi.org/10.1145/240080.240246Online:16 November 1996Publication History 29citation1,038DownloadsMetricsTotal Citations29Total Downloads1,038Last 12 Months27Last...
Abstract The Artemis program will send crew to explore the south polar region of Moon, preceded by and integrated with robotic missions. One main scientific goals future exploration is characterization volatiles, which are concentrated in near regions permanent shadow. meter‐scale cryogeomorphology shadowed remains unknown, posing a potential risk missions that plan traverse or land them. Here, we deploy physics‐based, deep learning‐driven post‐processing tool produce high‐signal...
The primary objective of the Lunar Crater Observation and Sensing Satellite (LCROSS) was to confirm presence or absence water ice in a permanently shadowed region (PSR) at lunar pole. LCROSS classified as NASA Class D mission. Its payload, subject this article, designed, built, tested operated support condensed schedule, risk tolerant mission approach, new paradigm for science missions. All nine instruments, most them ruggedized commercial-off-the-shelf (COTS), successfully collected data...
The LCROSS (Lunar CRater Observation and Sensing Satellite) mission was conceived as a low-cost means of determining the nature hydrogen concentrated at polar regions moon. Co-manifested for launch with LRO Reconnaissance Orbiter), guided its spent Centaur upper stage into Cabeus crater kinetic impactor, observed impact flash resulting debris plume signs water other compounds from Shepherding Spacecraft. Led by NASA Ames Research Center, flight operations spanned 112 days, June 18 through...
This work focuses on autonomous contingency planning for scientific missions by enabling rapid policy computation from any off-nominal point in the state space event of a delay or deviation nominal mission plan. Successful involves managing risks and rewards, often probabilistically associated with actions, stochastic scenarios. Markov Decision Processes (MDPs) are used to mathematically model decision-making such However, specific case planetary rover traverse planning, vast action long...