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Showing 1 to 8 of 8 for “"Near-Earth Object"”.
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Comets in the near-Earth object population
Because the lifespan of near-Earth objects (NEOs) is shorter than the age of the solar system, these objects originated elsewhere and they must have a source of re-supply. We seek to determine what fraction of the NEO population consists of dormant or extinct comets. We identify comet candidates …
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A Feasibility Study On The Implementation Of Satellite-To-Satellite Tracking Around A Small Near-Earth Object
<p>Near-earth objects (NEOs) are asteroids and comets that have a perihelion distance of less than 1.3 astronomical units (AU). There are currently more than 10,000 known NEOs. The majority of these objects are less than 1 km in diameter. Despite the number of NEOs, little is known about most of …
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Multi-level decision-based system architecting
… System and the mission design for a human Near Earth Object (NEO) mission are examined through single-level models. The habitat design for potential NEO missions is further examined through the application of multi-level decision-based system architecting techniques.
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Dynamic network modeling for spaceflight logistics with time-expanded networks
… logistics analysis techniques based on linear programming network optimization. A new model with a generalized multi-commodity network flow formulation and a time-expanded network is developed for dynamic space logistics optimization. The developed methodology is applied to three case …
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A flexible, modular approach to integrated space exploration campaign logistics modeling, simulation, and analysis
… capacity under existing resupply strategies. A near-Earth asteroid exploration details a two crew, 14-day tele-operated mission at 1999- AO10 to establish the feasibility requirements of using modified Constellation vehicle architectures. A lunar outpost exploration models the buildup of …
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Tracing meteorite source regions through asteroid spectroscopy
By virtue of their landing on Earth, meteorites reside in near-Earth object (NEO) orbits prior to their arrival. Thus the population of observable NEOs, in principle, give the best representation of meteorite source bodies. By linking meteorites to NEOs, and linking NOEs to their most likely …
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Astrometric and Photometric Data Fusion in Machine Learning-Based Characterization of Resident Space Objects
… Awareness (SSA) is considered: resident space object (RSO) physical and dynamical property estimation (characterization). This topic is explored by leveraging both simulated and observational data of RSOs in conjunction with physics- and machine learning-based (ML) models to illustrate novel …
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Multiple Asteroid Retrieval Mission
… a fleet of spacecraft capable of reaching Near-Earth asteroids. To analyze this idea, the goal of this problem is to maximize the asteroid mass retrieved within a spacecraft max life span. Explicitly, the maximum lifetime of the spacecraft fleet is set at 30 years. A fuel supply-chain is …