General perturbations method for orbit lifetime analysis incorporating non-spherically-symmetrical atmospheres

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

1 Citation (Scopus)

Abstract

A general perturbations method for orbit lifetime analysis is extended to include an analytical non-spherically-symmetrical atmospheric density model. This improvement allows the method to be applied with confidence to highly inclined orbits and special cases such as sun-synchronous orbits where the inclusion of the effects of atmospheric oblateness and the diurnal bulge will be particularly significant. These improvements can be applied to any general perturbations model for lifetime analysis. Using a case study of a sun-synchronous satellite a comparison is drawn between the original and improved methods, showing that by capturing the effects of a non-spherically-symmetrical atmosphere the orbit lifetime predicted could be up to 7% longer or 10% shorter than when using the spherically-symmetrical model. Also notable is the difference between the orbit lifetime predictions made using the spherically-symmetrical model derived from different data sets; for the case study this was approximately a third of the orbit lifetime.

LanguageEnglish
Title of host publicationAIAA/AAS Astrodynamics Specialist Conference, 2016
Place of Publication Reston, Virginia, United States
Number of pages22
Publication statusPublished - 16 Sep 2016
EventAIAA/AAS Astrodynamics Specialist Conference, 2016 - Long Beach, United States
Duration: 13 Sep 201616 Sep 2016

Conference

ConferenceAIAA/AAS Astrodynamics Specialist Conference, 2016
CountryUnited States
CityLong Beach
Period13/09/1616/09/16

Fingerprint

Orbits
orbits
atmospheres
perturbation
life (durability)
Sun
sun
Atmospheric density
atmospheric density
synchronous satellites
confidence
Satellites
inclusions
predictions

Keywords

  • general perturbations
  • orbit lifetime analysis
  • sun-synchronous orbits
  • sun-synchronous satellites
  • orbit lifetime predictions
  • astronautics

Cite this

Kerr, E., & Macdonald, M. (2016). General perturbations method for orbit lifetime analysis incorporating non-spherically-symmetrical atmospheres. In AIAA/AAS Astrodynamics Specialist Conference, 2016 Reston, Virginia, United States.
Kerr, Emma ; Macdonald, Malcolm. / General perturbations method for orbit lifetime analysis incorporating non-spherically-symmetrical atmospheres. AIAA/AAS Astrodynamics Specialist Conference, 2016. Reston, Virginia, United States, 2016.
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abstract = "A general perturbations method for orbit lifetime analysis is extended to include an analytical non-spherically-symmetrical atmospheric density model. This improvement allows the method to be applied with confidence to highly inclined orbits and special cases such as sun-synchronous orbits where the inclusion of the effects of atmospheric oblateness and the diurnal bulge will be particularly significant. These improvements can be applied to any general perturbations model for lifetime analysis. Using a case study of a sun-synchronous satellite a comparison is drawn between the original and improved methods, showing that by capturing the effects of a non-spherically-symmetrical atmosphere the orbit lifetime predicted could be up to 7{\%} longer or 10{\%} shorter than when using the spherically-symmetrical model. Also notable is the difference between the orbit lifetime predictions made using the spherically-symmetrical model derived from different data sets; for the case study this was approximately a third of the orbit lifetime.",
keywords = "general perturbations, orbit lifetime analysis, sun-synchronous orbits, sun-synchronous satellites, orbit lifetime predictions, astronautics",
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Kerr, E & Macdonald, M 2016, General perturbations method for orbit lifetime analysis incorporating non-spherically-symmetrical atmospheres. in AIAA/AAS Astrodynamics Specialist Conference, 2016. Reston, Virginia, United States, AIAA/AAS Astrodynamics Specialist Conference, 2016, Long Beach, United States, 13/09/16.

General perturbations method for orbit lifetime analysis incorporating non-spherically-symmetrical atmospheres. / Kerr, Emma; Macdonald, Malcolm.

AIAA/AAS Astrodynamics Specialist Conference, 2016. Reston, Virginia, United States, 2016.

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

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T1 - General perturbations method for orbit lifetime analysis incorporating non-spherically-symmetrical atmospheres

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AU - Macdonald, Malcolm

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N2 - A general perturbations method for orbit lifetime analysis is extended to include an analytical non-spherically-symmetrical atmospheric density model. This improvement allows the method to be applied with confidence to highly inclined orbits and special cases such as sun-synchronous orbits where the inclusion of the effects of atmospheric oblateness and the diurnal bulge will be particularly significant. These improvements can be applied to any general perturbations model for lifetime analysis. Using a case study of a sun-synchronous satellite a comparison is drawn between the original and improved methods, showing that by capturing the effects of a non-spherically-symmetrical atmosphere the orbit lifetime predicted could be up to 7% longer or 10% shorter than when using the spherically-symmetrical model. Also notable is the difference between the orbit lifetime predictions made using the spherically-symmetrical model derived from different data sets; for the case study this was approximately a third of the orbit lifetime.

AB - A general perturbations method for orbit lifetime analysis is extended to include an analytical non-spherically-symmetrical atmospheric density model. This improvement allows the method to be applied with confidence to highly inclined orbits and special cases such as sun-synchronous orbits where the inclusion of the effects of atmospheric oblateness and the diurnal bulge will be particularly significant. These improvements can be applied to any general perturbations model for lifetime analysis. Using a case study of a sun-synchronous satellite a comparison is drawn between the original and improved methods, showing that by capturing the effects of a non-spherically-symmetrical atmosphere the orbit lifetime predicted could be up to 7% longer or 10% shorter than when using the spherically-symmetrical model. Also notable is the difference between the orbit lifetime predictions made using the spherically-symmetrical model derived from different data sets; for the case study this was approximately a third of the orbit lifetime.

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KW - orbit lifetime analysis

KW - sun-synchronous orbits

KW - sun-synchronous satellites

KW - orbit lifetime predictions

KW - astronautics

M3 - Conference contribution book

SN - 9781624104459

BT - AIAA/AAS Astrodynamics Specialist Conference, 2016

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Kerr E, Macdonald M. General perturbations method for orbit lifetime analysis incorporating non-spherically-symmetrical atmospheres. In AIAA/AAS Astrodynamics Specialist Conference, 2016. Reston, Virginia, United States. 2016