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Published September 20, 2022 | Version v1
Dataset Open

MHD Model of Ganymede's Magnetosphere: Predicted OCFB and magnetic footprint surface locations for Juno's flyby

  • 1. Institute of Geophysics and Meteorology, University of Cologne, Cologne, Germany
  • 2. The Johns Hopkins University Applied Physics Laboratory, Laurel, Maryland, USA
  • 3. Southwest Research Institute, San Antonio, Texas, USA
  • 4. Department of Physics and Astronomy, University of Iowa, Iowa City, Iowa, USA
  • 5. NASA Goddard Space Flight Center, Greenbelt, Maryland, USA
  • 6. Laboratory for Atmospheric and Space Physics, University of Colorado, Boulder, Colorado, USA
  • 7. School of Physics and Astronomy, Minnesota Institute for Astrophysics, University of Minnesota, Minneapolis, Minnesota, USA

Description

This dataset contains model results from a magnetohydrodynamic (MHD) model of Ganymede's magnetosphere adapted to Juno's PJ34 flyby in 2021. Here we publish coordinates for the predicted location of the open-closed-field line-boundary (OCFB) on Ganymede's surface. Additionally we provide coordinates of Juno's magnetic footprint, namely the surface locations that connect to Juno's trajectory through magnetic field lines.

For the surface locations we use a western longitude planetographic coordinate system where 0° longitude is in direction of the y-axis and 90° in direction of the x-axis of the cartesian GPhiO system. The GPhiO system is defined by the primary direction
z parallel to Jupiter’s rotation axis, the secondary direction y is pointing towards Jupiter barycenter
and x completes the right-handed system approximately in direction of plasma flow.

Duling2022_JunoGanymede_modeled_surface_OCFB.txt

Columns:

Longitude [°]
Northern OCFB latitude [°]
Southern OCFB latitude [°]

Duling2022_JunoGanymede_modeled_magnetic_footprint.txt

Columns:

Spacecraft time [UTC]
Magnetic footprint longitude [°]
Magnetic footprint latitude [°]
Length of field line between Juno and surface [radii]
Length of field line between Juno and surface [km]
r coordinate of Juno [radii]
Latitude of Juno [°]
Longitude of Juno [°]
x of Juno in GPhiO [km]
y of Juno in GPhiO [km]
z of Juno in GPhiO [km]

Duling2022_JunoGanymede_surface_map.png

A plot that visualizes the data of this repository.

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Additional details

Related works

Is supplement to
Journal article: 10.1029/2022GL101688 (DOI)
Is supplemented by
Dataset: 10.5281/zenodo.7105334 (DOI)
Dataset: 10.5281/zenodo.7628719 (DOI)

Funding

Exo-Oceans – Searching and Characterizing Extraterrestrial Subsurface Oceans 884711
European Commission