Orbit analysis of a geostationary gravitational wave interferometer detector array

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorTinto, Massimo-
Autor(es): dc.creatorDe Araujo, Jose C. N.-
Autor(es): dc.creatorKuga, Helio K.-
Autor(es): dc.creatorAlves, Márcio E. S.-
Autor(es): dc.creatorAguiar, Odylio D.-
Data de aceite: dc.date.accessioned2021-03-11T00:28:11Z-
Data de disponibilização: dc.date.available2021-03-11T00:28:11Z-
Data de envio: dc.date.issued2018-12-11-
Data de envio: dc.date.issued2018-12-11-
Data de envio: dc.date.issued2015-09-24-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1088/0264-9381/32/18/185017-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/167987-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/167987-
Descrição: dc.descriptionWe analyze the trajectories of three geostationary satellites forming the geostationary gravitational wave interferometer (GEOGRAWI) [1], a space-based laser interferometer mission aiming to detect and study gravitational radiation in the (10-4-10) Hz band. The combined effects of the gravity fields of the Earth, the Sun and the Moon make the three satellites deviate from their nominally stationary, equatorial and equilateral configuration. Since changes in the satellites's relative distances and orientations could negatively affect the precision of the laser heterodyne measurements, we have derived the time-dependence of the inter-satellite distances and velocities, the variations of the polar angles made by the constellation's three arms with respect to a chosen reference frame and the time changes of the triangle's enclosed angles. We find that during the time between two consecutive station-keeping maneuvers (about two weeks) the relative variations of the inter-satellite distances do not exceed a value of 0.05%, while the relative velocities between pairs of satellites remain smaller than about 0.7 m s-1. In addition, we find the angles made by the arms of the triangle with the equatorial plane to be periodic functions of time whose amplitudes grow linearly with time; the maximum variations experienced by these angles as well as by those within the triangle remain smaller than 3 arc-minutes, while the east-west angular variations of the three arms remain smaller than about 15 arc-minutes during the two-week period.-
Idioma: dc.languageen-
Relação: dc.relationClassical and Quantum Gravity-
Relação: dc.relation1,809-
Direitos: dc.rightsopenAccess-
Palavras-chave: dc.subjectgeostationary satellites-
Palavras-chave: dc.subjectgravitational waves-
Palavras-chave: dc.subjectinterferometry-
Título: dc.titleOrbit analysis of a geostationary gravitational wave interferometer detector array-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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