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dc.contributor.authorOjeda Romero, Juan Andreen_US
dc.date.accessioned2014-10-30T08:00:28Z
dc.date.available2014-10-30T08:00:28Z
dc.date.issued2014-10-29en_US
dc.identifier.othervt_gsexam:3907en_US
dc.identifier.urihttp://hdl.handle.net/10919/50627
dc.description.abstractA dual satellite system in a Low Earth Orbit, LEO, would be beneficial to study the electromagnetic occurrences in the magnetosphere and their contributions to the development of the aurora events in the Earth's lower atmosphere. An orbit configuration is sought that would increase the total time that both satellites are inside the auroral oval. Some additional objectives include minimizing the total fuel cost and the average angle between the satellites' radius vectors. This orbit configuration is developed using a series of instantaneous burns applied at each satellite's perigee. An analysis of the optimal solutions generated by a Particle Swarm Optimization method is completed using a cost function with different weights for the time, fuel, and angle terms. Three different scenarios are presented: a single burn case, a double burn case, and a four burn case. The results are calculated using two different orbital mechanics models: an unperturbed two-body simulation and a two-body simulation with added Earth's equatorial bulge effects. It is shown that the added perturbation reduces the total event time in the optimal solutions generated. Specific weights for the cost function are recommended for further studies.en_US
dc.format.mediumETDen_US
dc.publisherVirginia Techen_US
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectparticle swarm optimizationen_US
dc.subjectspace weatheren_US
dc.subjectaurora borealisen_US
dc.subjectorbital mechanicsen_US
dc.subjectsatellite coverageen_US
dc.titleDual Satellite Coverage using Particle Swarm Optimizationen_US
dc.typeThesisen_US
dc.contributor.departmentAerospace and Ocean Engineeringen_US
dc.description.degreeMaster of Scienceen_US
thesis.degree.nameMaster of Scienceen_US
thesis.degree.levelmastersen_US
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen_US
thesis.degree.disciplineAerospace Engineeringen_US
dc.contributor.committeechairPhilen, Michael Keithen_US
dc.contributor.committeememberEarle, Gregory D.en_US
dc.contributor.committeememberSultan, Cornelen_US


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