Observatorio de I+D+i UPM

Memorias de investigación
Artículos en revistas:
Minimum Orbital Intersection Distance: Asymptotic Approach
Año:2019
Áreas de investigación
  • Ciencias del espacio,
  • Tecnología espacial,
  • Astronomía,
  • Ingeniería aeronaútica
Datos
Descripción
The minimum orbital intersection distance is used as a measure to assess potential close approaches and collision risks between astronomical objects. Methods to calculate this quantity have been proposed in several previous publications. The most frequent case is that in which both objects have elliptical osculating orbits. When at least one of the two orbits has low eccentricity, the latter can be used as a small parameter in an asymptotic power series expansion. The resulting approximation can be exploited to speed up the computation with negligible cost in terms of accuracy. This contribution introduces two asymptotic procedures into the SDG-MOID method presented in a previous article, it discusses the results of performance tests and their comparisons with previous findings. The best approximate procedure yields a reduction of 40% in computing speed without degrading the accuracy of the determinations. This remarkable result suggests that large benefits can be obtained in applications involving massive distance computations, such as in the analysis of large databases, in Monte Carlo simulations for impact risk assessment or in the long-time monitoring of the MOID between two objects
Internacional
Si
JCR del ISI
Si
Título de la revista
Astronomy & Astrophysics
ISSN
1432-0746
Factor de impacto JCR
5,565
Información de impacto
Datos JCR del año 2017
Volumen
A22
DOI
10.1051/0004-6361/201936502
Número de revista
Desde la página
1
Hasta la página
9
Mes
SIN MES
Ranking
Esta actividad pertenece a memorias de investigación
Participantes
  • Autor: Jose Manuel Hedo Rodriguez (UPM)
  • Autor: Elena Fantino (Khalifa University of Science and Technology (KUST))
  • Autor: Manuel Ruiz Delgado (UPM)
  • Autor: Jesus Pelaez Alvarez (UPM)
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Departamento: Física Aplicada a Las Ingenierías Aeronáutica y Naval
S2i 2022 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
Cofinanciación del MINECO en el marco del Programa INNPACTO (IPT-020000-2010-22)