Risk of collision for the navigation constellations: the case of the forthcoming Galileo (Articolo in rivista)

Type
Label
  • Risk of collision for the navigation constellations: the case of the forthcoming Galileo (Articolo in rivista) (literal)
Anno
  • 2004-01-01T00:00:00+01:00 (literal)
Alternative label
  • Rossi A.; Valsecchi G.B.; Perozzi E. (2004)
    Risk of collision for the navigation constellations: the case of the forthcoming Galileo
    in The Journal of the astronautical sciences
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Rossi A.; Valsecchi G.B.; Perozzi E. (literal)
Pagina inizio
  • 455 (literal)
Pagina fine
  • 474 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 52 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#note
  • In: The Journal of the Astronautical Sciences, Vol. 52 (2004), pp. 455-474. American Astronautical Society, 2004. (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • ISTI-CNR, Via Moruzzi, 1, 56124 Pisa, Italy.; IASFC-CNR, Via Fosso del Cavaliere 100, 00133 Roma, Italy; Telespazio S.p.A., Via Tiburtina 965, 00156 Roma, Italy. (literal)
Titolo
  • Risk of collision for the navigation constellations: the case of the forthcoming Galileo (literal)
Abstract
  • The satellite global positioning systems presently in space are the American NAVSTAR--GPS and the Russian GLONASS. Within this decade the European system, Galileo, should be operational in the same altitude range, dubbed MEO, Medium Earth Orbit. In this paper the fragmentation of a spacecraft related to one of these three constellations was simulated and the collision risk faced by the operational satellites was analyzed. Both the intra-constellation and the inter-constellation risk have been studied. An improvement in the collision risk calculation method developed in (Valsecchi et al, Space Debris, 2000) is described in the paper. The new method overcomes the limitation in the application of Opik's theory of planetary encounters, dictated by the assumption of random orientation of the argument of perigee of the projectiles, and allows its application to the Medium Earth orbital regime. In general terms it was observed in this study that the flux following a generic fragmentation is by far larger than the low background flux in MEO. The strong potential interaction of the three constellations has been shown by analyzing the inter-constellation effects of the fragmentations. In particular the GPS and the GLONASS are strongly interacting, while the Galileo constellation, orbiting at somewhat higher altitude, is less affected by any unfortunate event happening in the two lower constellations. (literal)
Prodotto di
Autore CNR
Insieme di parole chiave

Incoming links:


Autore CNR di
Prodotto
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi
Insieme di parole chiave di
data.CNR.it