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Journal of the Korean Physical Society

, Volume 72, Issue 11, pp 1393–1401 | Cite as

Space Plasma Detectors on NEXTSat-1 for Ionospheric Measurements

  • Junchan Lee
  • Kyoungwook Min
  • Kwangsun Ryu
  • Kyung-In Kang
  • Goo-Hwan Shin
  • Jongdae Sohn
  • Gowoon Na
Article
  • 35 Downloads

Abstract

This paper describes the Space Plasma Detectors (SPD) on board the Next Generation Small Satellite-1 (NEXTsat-1), which will observe the thermal plasmas of the ionosphere, especially the plasma irregularities in the low and the middle latitude regions. A SPD consists of a disk-type Langmuir Probe (LP), a Retarding Potential Analyzer (RPA), and an Ion Drift Meter (IDM), which will measure the electron densities and temperatures, the ion densities and temperatures as well as the ion components, and the ion drift velocities, respectively. Whereas SPD employ conventional designs, a high cadence of nominal 100 msec will enable us to study small-scale structures of irregularities, such as plasma bubbles and blobs, with a spatial resolution of less than a kilometer at an altitude of ~ 575 km. Furthermore, the high-resolution mode of the LP operating at a 20 msec cadence will provide data on the electron density and temperature variations with an even better spatial resolution. The NEXTSat-1 is scheduled for launch in early 2018.

Keywords

Langmuir Probe Retarding Potential Analyzer Ion Drift Meter Plasma chamber experiment 

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Copyright information

© The Korean Physical Society 2018

Authors and Affiliations

  • Junchan Lee
    • 1
  • Kyoungwook Min
    • 1
  • Kwangsun Ryu
    • 2
  • Kyung-In Kang
    • 2
  • Goo-Hwan Shin
    • 2
  • Jongdae Sohn
    • 3
  • Gowoon Na
    • 4
  1. 1.Department of PhysicsKorea Advanced Institute of Science and TechnologyDaejeonKorea
  2. 2.Satellite Technology Research CenterKorea Advanced Institute of Science and TechnologyDaejeonKorea
  3. 3.Korea Astronomy and Space Science InstituteDaejeonKorea
  4. 4.School of Space ResearchKyung Hee UniversityYonginKorea

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