Jupiter Infrared Aurora Mapper
is an image spectrometer.
At the beginning it was meant for supporting aurora observations,
to make images of aurora,
and at the same time to look at the different
different view of the aurora.
JIRAM is made of two pieces.
One part of JIRAM is called the optical head.
It's where is the sensitive part of the instrument that can focus the images, like a camera. And there is another box,
which is the main electronic.
And we can take images into different wavelengths.
One is devoted to the aurora observations
and the other part of the director -- the imager --
is sensitive to the thermal emission of the planet.
So at the same time we can take these two pictures
that are superimposed one above the other one,
for observing the aurora if it's present.
The reason why we are not with all the other instruments
but we are on a side in the half-deck of the spacecraft
is because we entered the mission later
so there was no more room (laughs)
in the big place, in the place where all the other instruments are.
So we had to run quite fast to keep the pace with the mission.