It's the Jupiter Energetic Particle Detector Instrument,
and the acronym doesn't quite work out properly,
but somebody loved the word JEDI,
for obvious reasons.
We affectionately call our instrument the hockey puck,
because the main sensor
is about the size and shape of a hockey puck disc.
That hockey puck is sort of glued on or attached to a box
which holds all of the electronics associated with the sensor.
JADE in particular works in very close coordination with JEDI.
So JADE is measuring the lower energy part of the charged particles
that are in Jupiter's environment.
JEDI measures the higher energy particles.
Those particles then go through
the instrument and strike what's called a micro-channel plate sensor.
And a micro-channel plate sensor amplifies the signal
so that you get a current out the back end
and modern electronics can measure electric currents.
We measure the radiation belts around planets
all the strongly magnetized planets have radiation belts.
Jupiter has the most intense and interesting radiation belts.
It's a rotationally dominated space environment or magnetosphere,
where Earth is a solar wind-driven space environment.
By studying two different environments that are powered by different things,
you can begin to isolate the physical processes that are causing these variations.
We hope to make discoveries there.