Solar Wind Properties During Juno's Approach to Jupiter: Data Analysis and Resulting Plasma Properties Utilizing a 1-D Forward Model

R. J. Wilson, Fran Bagenal, Philip W. Valek, D. J. McComas, Frederic Allegrini, Robert W. Ebert, Thomas K. Kim, W. S. Kurth, Jamey R. Szalay, Michelle F. Thomsen

Research output: Contribution to journalArticle

6 Scopus citations

Abstract

The Jovian Auroral Distributions Experiment ion sensor (JADE-I) on board the National Aeronautics and Space Administration's Juno mission measured solar wind ions for ≈40 days prior to the spacecraft's arrival at Jupiter, simultaneous with numerous telescope observations of the Jovian aurora. JADE-I is a thermal plasma time-of-flight instrument designed to measure Jovian auroral and magnetospheric ions. This study provides a solar wind parameter data set for the approach phase that may be used in coordinated studies with remote measurements of the Jovian aurora, to compare with models that propagate solar wind conditions from Earth and to apply to Jovian bow shock or magnetopause models. While multiple bow shock crossings were predicted during Juno's approach, there was only one observed suggesting a compressed magnetosphere that was shrinking as Juno approached. However, the calculated ram pressure at the bow shock was near the median value of those 40 days, rather than being in an upper percentile.

Original languageEnglish (US)
Pages (from-to)2772-2786
Number of pages15
JournalJournal of Geophysical Research: Space Physics
Volume123
Issue number4
DOIs
StatePublished - Apr 2018

All Science Journal Classification (ASJC) codes

  • Geophysics
  • Forestry
  • Oceanography
  • Aquatic Science
  • Ecology
  • Water Science and Technology
  • Soil Science
  • Geochemistry and Petrology
  • Earth-Surface Processes
  • Atmospheric Science
  • Earth and Planetary Sciences (miscellaneous)
  • Space and Planetary Science
  • Palaeontology

Keywords

  • JADE
  • Juno
  • solar
  • upstream
  • wind

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    Wilson, R. J., Bagenal, F., Valek, P. W., McComas, D. J., Allegrini, F., Ebert, R. W., Kim, T. K., Kurth, W. S., Szalay, J. R., & Thomsen, M. F. (2018). Solar Wind Properties During Juno's Approach to Jupiter: Data Analysis and Resulting Plasma Properties Utilizing a 1-D Forward Model. Journal of Geophysical Research: Space Physics, 123(4), 2772-2786. https://doi.org/10.1002/2017JA024860