An upper atmospheric probe for auroral effects

Sanmartín Losada, Juan Ramón and Ahedo Galilea, Eduardo and Martínez Sánchez, M. (2001). An upper atmospheric probe for auroral effects. In: "7th Spacecraft Charging Technology Conference", 23-27 apr, Noordwijk. ISBN 92-9092-745-3.


Title: An upper atmospheric probe for auroral effects
  • Sanmartín Losada, Juan Ramón
  • Ahedo Galilea, Eduardo
  • Martínez Sánchez, M.
Item Type: Presentation at Congress or Conference (Article)
Event Title: 7th Spacecraft Charging Technology Conference
Event Dates: 23-27 apr
Event Location: Noordwijk
Title of Book: A spacecraft charging Odyssey : proceedings of the spacecraft charging technology conference
Date: 2001
ISBN: 92-9092-745-3
Faculty: E.T.S.I. Aeronáuticos (UPM)
Department: Física Aplicada a la Ingeniería Aeronáutica [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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An electrically floating bare tether in LEO orbit may serve as upper atmospheric probe. Ambient ions bombard the negatively biased tether and liberate secondary electrons, which accelerate through the same voltage to form a magnetically guided planar e-beam resulting in auroral effects at the E-layer. This beam is free from the S/C charging and plasma interaction problems of standard e-beams. The energy flux is weak but varies accross the large beam cross section, allowing continuous observation from the S/C. A brightness scan of line-integrated emissions, that mix emitting altitudes and tether points originating the electrons, is analysed. The tether is magnetically dragged at nighttime operation, when power supply and plasma contactor at the S/C are off for electrical floating; power and contactor are on at daytime for partial current reversal, resulting in thrust. System requirements for keeping average orbital height are discussed.

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Item ID: 25609
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Deposited by: Biblioteca ETSI Aeronauticos
Deposited on: 25 Apr 2014 09:59
Last Modified: 22 Sep 2014 11:37
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