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Computing and Visualizing Reachable Volumes for Maneuvering Satellites

Description: Detecting and predicting maneuvering satellites is an important problem for Space Situational Awareness. The spatial envelope of all possible locations within reach of such a maneuvering satellite is known as the Reachable Volume (RV). As soon as custody of a satellite is lost, calculating the RV and its subsequent time evolution is a critical component in the rapid recovery of the satellite. In this paper, we present a Monte Carlo approach to computing the RV for a given object. Essentially, o… more
Date: September 11, 2011
Creator: Jiang, M.; de Vries, W. H.; Pertica, A. J. & Olivier, S. S.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Intelligent Sensor Tasking for Space Collision Mitigation

Description: Orbital collisions pose a hazard to space operations. Using a high performance computer modeling and simulation environment for space situational awareness, we explore a new paradigm for improving satellite conjunction analysis by obtaining more precise orbital information only for those objects that pose a collision risk greater than a defined threshold to a specific set of satellites during a specified time interval. In particular, we assess the improvement in the quality of the conjunction a… more
Date: April 1, 2010
Creator: Olivier, S. S.; Pertica, A. J. & Henderson, J. R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Optical Payload for the STARE Mission

Description: Space-based Telescopes for Actionable Refinement of Ephemeris (STARE) is a nano-sat based mission designed to better determine the trajectory of satellites and space debris in orbit around earth. In this paper, we give a brief overview of the mission and its place in the larger context of Space Situational Awareness (SSA). We then describe the details of the central optical payload, touching on the optical design and characterization of the on-board image sensor used in our Cubesat based protot… more
Date: March 13, 2011
Creator: Simms, L.; Riot, V.; De Vries, W.; Olivier, S. S.; Pertica, A.; Bauman, B. J. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Satellite Collision Modeling with Physics-Based Hydrocodes: Debris Generation Predictions of the Iridium-Cosmos Collision Event and Other Impact Events

Description: Satellite collision debris poses risks to existing space assets and future space missions. Predictive models of debris generated from these hypervelocity collisions are critical for developing accurate space situational awareness tools and effective mitigation strategies. Hypervelocity collisions involve complex phenomenon that spans several time- and length-scales. We have developed a satellite collision debris modeling approach consisting of a Lagrangian hydrocode enriched with smooth particl… more
Date: September 6, 2010
Creator: Springer, H. K.; Miller, W. O.; Levatin, J. L.; Pertica, A. J. & Olivier, S. S.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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