Analysis of Proseds bare-tether performance

Sanmartín Losada, Juan Ramón, Lorenzini, Enrico C., Cosmo, M.L. and Estes, Robert D. (2003). Analysis of Proseds bare-tether performance. In: "28th International Electric Propulsion conference", 17-21 mar 2003, Tolouse.

Description

Title: Analysis of Proseds bare-tether performance
Author/s:
  • Sanmartín Losada, Juan Ramón
  • Lorenzini, Enrico C.
  • Cosmo, M.L.
  • Estes, Robert D.
Item Type: Presentation at Congress or Conference (Article)
Event Title: 28th International Electric Propulsion conference
Event Dates: 17-21 mar 2003
Event Location: Tolouse
Title of Book: IEPC 2003 : 28th International Electric Propulsion Conference
Date: 2003
Subjects:
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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Abstract

NASA's tether experiment ProSEDS will be placed in orbit on board a Delta-II rocket in early 2003. ProSEDS will test bare-tether electron collection, deorbiting of the rocket second stage, and the system dynamic stability. ProSEDS performance will vary both because ambient conditions change along the orbit and because tether-circuit parameters follow a step by step sequence in the current operating cycle. In this work we discuss how measurements of tether current and bias, plasma density, and deorbiting rate can be used to check the OML law for current collection. We review circuit bulk elements; characteristic lengths and energies that determine collection (tether radius, electron thermal gyroradius and Debye length, particle temperatures, tether bias, ion ram energy); and lengths determining current and bias profiles along the tether (extent of magnetic self-field, a length gauging ohmic versus collection impedances, tether length). The analysis serves the purpose of estimating ProSEDS behavior in orbit and fostering our ability for extrapolating ProSEDS flight data to different tether and environmental conditions.

More information

Item ID: 25725
DC Identifier: https://oa.upm.es/25725/
OAI Identifier: oai:oa.upm.es:25725
Deposited by: Biblioteca ETSI Aeronauticos
Deposited on: 06 May 2014 11:22
Last Modified: 14 Feb 2023 11:54
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