Matches in SemOpenAlex for { <https://semopenalex.org/work/W1985890473> ?p ?o ?g. }
Showing items 1 to 89 of
89
with 100 items per page.
- W1985890473 endingPage "117" @default.
- W1985890473 startingPage "109" @default.
- W1985890473 abstract "The long-term evolution and environmental impact in MEO of all the abandoned spacecraft and upper stages associated with the GPS and GLONASS navigation constellations were analyzed. The orbits of the disposed objects, as of 1 May 2011, were propagated for 200 years and snapshots of their evolving distribution were obtained, together with an estimation of the changing collision probability with the spacecraft of the operational navigation systems existing or planned in MEO, i.e., GLONASS, GPS, Beidou and Galileo. The probability that the abandoned objects considered will collide with the operational spacecraft of the navigation constellations is very low, even taking into account the intrinsic eccentricity instability of the disposal orbits. Assuming the present or envisaged configuration of the constellations in MEO, the probability of collision, integrated over 200 years, would be <1/300 with a GLONASS spacecraft, <1/15,000 with a GPS or Beidou spacecraft, and <1/250,000 with a Galileo spacecraft. The worst disposal strategy consists in abandoning satellites and upper stages close to the altitude of the operational constellation (GLONASS), while a re-orbiting a few hundred km away (GPS) is able to guarantee an effective long-term dilution of the collision risk, irrespective of the eccentricity instability due to geopotential and luni-solar perturbations. The disposal strategies applied so far to the GPS satellites should be able to guarantee for at least a few centuries a sustainable MEO environment free of collisions among intact objects. Consequently, there would be no need to adopt disposal schemes targeting also the optimal value of the eccentricity vector. However, it should be pointed out that the GPS disposal strategy was devised well in advance of the Beidou constellation announcement, so most of the abandoned satellites were re-orbited fairly close to the altitude of the new Chinese system. A new re-orbiting approach will be therefore needed in the future." @default.
- W1985890473 created "2016-06-24" @default.
- W1985890473 creator A5011762678 @default.
- W1985890473 creator A5083226584 @default.
- W1985890473 date "2012-08-01" @default.
- W1985890473 modified "2023-10-18" @default.
- W1985890473 title "Post-disposal orbital evolution of satellites and upper stages used by the GPS and GLONASS navigation constellations: The long-term impact on the Medium Earth Orbit environment" @default.
- W1985890473 cites W1963779672 @default.
- W1985890473 cites W1990197306 @default.
- W1985890473 cites W2007156699 @default.
- W1985890473 cites W2040579783 @default.
- W1985890473 cites W2113938799 @default.
- W1985890473 cites W34969716 @default.
- W1985890473 doi "https://doi.org/10.1016/j.actaastro.2012.03.024" @default.
- W1985890473 hasPublicationYear "2012" @default.
- W1985890473 type Work @default.
- W1985890473 sameAs 1985890473 @default.
- W1985890473 citedByCount "10" @default.
- W1985890473 countsByYear W19858904732014 @default.
- W1985890473 countsByYear W19858904732015 @default.
- W1985890473 countsByYear W19858904732017 @default.
- W1985890473 countsByYear W19858904732018 @default.
- W1985890473 countsByYear W19858904732019 @default.
- W1985890473 countsByYear W19858904732023 @default.
- W1985890473 crossrefType "journal-article" @default.
- W1985890473 hasAuthorship W1985890473A5011762678 @default.
- W1985890473 hasAuthorship W1985890473A5083226584 @default.
- W1985890473 hasConcept C102451475 @default.
- W1985890473 hasConcept C121332964 @default.
- W1985890473 hasConcept C127413603 @default.
- W1985890473 hasConcept C1276947 @default.
- W1985890473 hasConcept C13280743 @default.
- W1985890473 hasConcept C14279187 @default.
- W1985890473 hasConcept C146978453 @default.
- W1985890473 hasConcept C177219330 @default.
- W1985890473 hasConcept C19269812 @default.
- W1985890473 hasConcept C196644772 @default.
- W1985890473 hasConcept C199301463 @default.
- W1985890473 hasConcept C205649164 @default.
- W1985890473 hasConcept C29829512 @default.
- W1985890473 hasConcept C36301306 @default.
- W1985890473 hasConcept C39432304 @default.
- W1985890473 hasConcept C41008148 @default.
- W1985890473 hasConcept C60229501 @default.
- W1985890473 hasConcept C62649853 @default.
- W1985890473 hasConcept C70352696 @default.
- W1985890473 hasConcept C76155785 @default.
- W1985890473 hasConcept C94042562 @default.
- W1985890473 hasConceptScore W1985890473C102451475 @default.
- W1985890473 hasConceptScore W1985890473C121332964 @default.
- W1985890473 hasConceptScore W1985890473C127413603 @default.
- W1985890473 hasConceptScore W1985890473C1276947 @default.
- W1985890473 hasConceptScore W1985890473C13280743 @default.
- W1985890473 hasConceptScore W1985890473C14279187 @default.
- W1985890473 hasConceptScore W1985890473C146978453 @default.
- W1985890473 hasConceptScore W1985890473C177219330 @default.
- W1985890473 hasConceptScore W1985890473C19269812 @default.
- W1985890473 hasConceptScore W1985890473C196644772 @default.
- W1985890473 hasConceptScore W1985890473C199301463 @default.
- W1985890473 hasConceptScore W1985890473C205649164 @default.
- W1985890473 hasConceptScore W1985890473C29829512 @default.
- W1985890473 hasConceptScore W1985890473C36301306 @default.
- W1985890473 hasConceptScore W1985890473C39432304 @default.
- W1985890473 hasConceptScore W1985890473C41008148 @default.
- W1985890473 hasConceptScore W1985890473C60229501 @default.
- W1985890473 hasConceptScore W1985890473C62649853 @default.
- W1985890473 hasConceptScore W1985890473C70352696 @default.
- W1985890473 hasConceptScore W1985890473C76155785 @default.
- W1985890473 hasConceptScore W1985890473C94042562 @default.
- W1985890473 hasLocation W19858904731 @default.
- W1985890473 hasOpenAccess W1985890473 @default.
- W1985890473 hasPrimaryLocation W19858904731 @default.
- W1985890473 hasRelatedWork W2015050076 @default.
- W1985890473 hasRelatedWork W2096164090 @default.
- W1985890473 hasRelatedWork W2382374665 @default.
- W1985890473 hasRelatedWork W2397549911 @default.
- W1985890473 hasRelatedWork W2792105559 @default.
- W1985890473 hasRelatedWork W2810815405 @default.
- W1985890473 hasRelatedWork W3093806329 @default.
- W1985890473 hasRelatedWork W3131999002 @default.
- W1985890473 hasRelatedWork W3207964445 @default.
- W1985890473 hasRelatedWork W4205199133 @default.
- W1985890473 hasVolume "77" @default.
- W1985890473 isParatext "false" @default.
- W1985890473 isRetracted "false" @default.
- W1985890473 magId "1985890473" @default.
- W1985890473 workType "article" @default.