Long term effects and delta-V analysis of the de-orbit mitigation measures (Contributo in atti di convegno)

Type
Label
  • Long term effects and delta-V analysis of the de-orbit mitigation measures (Contributo in atti di convegno) (literal)
Anno
  • 2001-01-01T00:00:00+01:00 (literal)
Alternative label
  • Rossi A.; Valsecchi G.B. (2001)
    Long term effects and delta-V analysis of the de-orbit mitigation measures
    in Third European Conference on Space Debris, Darmstadt, Germania, 19-21 marzo 2001
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Rossi A.; Valsecchi G.B. (literal)
Pagina inizio
  • 341 (literal)
Pagina fine
  • 346 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#titoloVolume
  • Proceedings of the Third European Conference on Space Debris (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#volumeInCollana
  • 473 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#note
  • In: Third European Conference on Space Debris - ESA/ESOC (Darmstadt (D), 19-21 March 200). Proceedings, pp. 341-346. (ESA SP-473, Vol. 2, October 2001) (literal)
Note
  • Google Scholar (literal)
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • CNUCE-CNR, Pisa; IAS-CNR, ROma (literal)
Titolo
  • Long term effects and delta-V analysis of the de-orbit mitigation measures (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#isbn
  • 92-9092-733-X (literal)
Abstract
  • The effect, on the growth of the space debris population, of the mitigation measures proposed at the international level, is investigated. We consider scenarios involving only the de-orbiting of satellites at the end-of-life and mixed scenarios involving both the de-orbiting and the re-orbiting in different super-LEO graveyard zones (above 1700, 2000 or 2500 km). Then the mitigation measures are analyzed in terms of the Delta V required to accomplish the de-orbiting or re-orbiting maneuvers, in a realistic traffic scenario. The use of delayed reentry disposal orbits, e.g. with 25-years residual lifetime, allows, on average, a saving of ~30 % on the amount of propellant. The use of the graveyard regions further reduces the propellant needs, while introducing possible problems due to the accumulation of a large number of objects in restricted regions of space. In particular, a collision risk analysis shows that the use of the lowest proposed graveyard zone, above 1700 km, gives way to a dramatic increase in the number of catastrophic collisions in the graveyard region, in the next decades. On the other hand, it has been shown that the de-orbiting of old spacecraft on elliptical disposal orbits with residual lifetime around 25 -- 50 years significantly increase the collision risk for the International Space Station. A mixed strategy, involving de-orbiting to 25-year residual lifetime disposal orbits and re-orbiting to a storage zone above 2000 km, appears to be the best compromise between the debris mitigation problem and the practical operational issues (i.e. in terms of Delta V required to accomplish the maneuvers). (literal)
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