GeoSail: exploring the geomagnetic tail using a small solar sail

C.R. McInnes, M. Macdonald, V. Angelopoulos, D. Alexander

Research output: Contribution to journalArticle

74 Citations (Scopus)

Abstract

Conventional geomagnetic tail missions require a spacecraft to be injected into a long elliptical orbit to explore the spatial structure of the geomagnetic tail. However, because the elliptical orbit is inertially fixed and the geomagnetic tail is directed along the sun-Earth line, the apse line of the elliptical orbit is precisely aligned with the geomagnetic tail only once every year. To artificially precess the apse line of the elliptical orbit in a sun-synchronous manner, which would keep the spacecraft in the geomagnetic tail during the entire year, would require continuous low-thrust propulsion or periodic impulses from a high-thrust propulsion system. Both of these options require reaction mass that will ultimately limit the mission lifetime. It is demonstrated that sun-synchronous apse-line precession can be achieved using only a small, low-cost solar sail. Because solar sails do not require reaction mass, a geomagnetic tail mission can be configured that provides a continuous science return by permanently stationing a science payload within the geomagnetic tail.
LanguageEnglish
Pages622-629
Number of pages7
JournalJournal of Spacecraft and Rockets
Volume38
Issue number4
Publication statusPublished - Jul 2001

Fingerprint

geomagnetic tail
ice ridge
elliptical orbits
Orbits
spacecraft
thrust
Sun
precession
Propulsion
Spacecraft
sun
Solar sails
low thrust propulsion
solar sails
cost
high thrust
Earth (planet)
propulsion
payloads
science

Keywords

  • geomagnetic tail
  • elliptical orbit
  • apse line
  • mechanical enigneering

Cite this

McInnes, C. R., Macdonald, M., Angelopoulos, V., & Alexander, D. (2001). GeoSail: exploring the geomagnetic tail using a small solar sail. Journal of Spacecraft and Rockets, 38(4), 622-629.
McInnes, C.R. ; Macdonald, M. ; Angelopoulos, V. ; Alexander, D. / GeoSail: exploring the geomagnetic tail using a small solar sail. In: Journal of Spacecraft and Rockets. 2001 ; Vol. 38, No. 4. pp. 622-629.
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McInnes, CR, Macdonald, M, Angelopoulos, V & Alexander, D 2001, 'GeoSail: exploring the geomagnetic tail using a small solar sail' Journal of Spacecraft and Rockets, vol. 38, no. 4, pp. 622-629.

GeoSail: exploring the geomagnetic tail using a small solar sail. / McInnes, C.R.; Macdonald, M.; Angelopoulos, V.; Alexander, D.

In: Journal of Spacecraft and Rockets, Vol. 38, No. 4, 07.2001, p. 622-629.

Research output: Contribution to journalArticle

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