MHD Model Output of Europa's Plasma Interaction During the Juno Flyby

This dataset contains the output from the five MHD model runs (Runs 1 to 5) for Juno's flyby at Europa in September 2022 presented in Cervantes et al. (2025). The simulations were performed with the PLUTO code v4.4 (Mignone et al. 2007) (http://plutocode.ph.unito.it/) as described in Cervantes et al. (2025).

The dataset includes the simulation variables on the simulation grid after steady state was reached. The grid has a spherical grid with 160x120x240 (r, theta, phi) cells. The colatitude theta is measured from the positive Z axis of the EPhiO coordinate system, i.e., theta=0° is Europa's north pole. The longitude phi is measured from the positive Y axis in direction to the negative X axis of the EPhiO system, i.e., phi=0° points towards Jupiter and phi=90° points in the upstream direction.

The following variables are included:

rho: plasma mass density

prs: thermal plasma pressure

vx1: plasma velocity radial component

vx2: plasma velocity theta component

vx3: plasma velocity phi component

Bx1: magnetic field radial component

Bx2: magnetic field theta component

Bx3: magnetic field phi component

fion: ionization frequency

All values are in normalized units with the following normalization factors:

NORMR = 1.561e08 cmNORMV = 1e07 cm s^-1NORMRHO = 3.072e-21 g cm^-3NORMPRS = 3.072e-07 dyne cm^-2NORMB = 1.965e-03 Gauss

The model output in this dataset is in PLUTO's binary format "flt", thus we provide a Python code snippet that reads the data to data arrays.

grid.outThis ASCII file contains the grid dimensions and coordinates of the cell boundaries.

data.0020.fltThis binary file contains the simulation variables on the cell centers of the grid for the indicated model run.

pluto.0.logThis ASCII file contains the header of the PLUTO logfile for the indicated model run.

read_data.pyThis Python code snippet helps with reading the data.