Galilean Moon Orbital Crystals for March 2015

Here are the orbital crystals of the four Galilean moons of Jupiter for March 2015.  This is using data taken from the JPL Horizons website.

First, the individual pairs:

Io and Europa

Io and Ganymede

Io and Callisto

Europa and Ganymede

Europa and Callisto

Ganymede and Callisto

So then I can combine all of these into one image and colorize each one differently to come up with this:

Orbital Crystal for March 2015

Here's the same image, but showing the orbits:

Orbital Crystal showing orbits

And then I can zoom in a few times:

I hope you find these as beautiful as I do.