as I promised, today I will write about instruments that Juno has acquired for the journey to Jupiter. Also I wont post anything for something like two weeks again because I am going with my mum and sister to Poland on vacation. After that I will be few days at home and then I will go to Germany for one year (of course I will start writing again at that time).
Juno is very well prepared to gather some data, here are all the things that Juno is capable of:
To measure if Jupiter has solid core or not scientists are going to measure Doppler shift of radio waves transmitted back to Earth. The changes of gravity from computed should be from either storms if they go very deep into the atmosphere and/or changes of density and surface of the core if it exists.
JADE – Jovian Auroral Distributions Experiment
Those are three detectors that each covers 120° + one special detector that has 270° view. This experiment is trying to observe the auroras of Jupiter by measuring the charged particles that create them.
JEDI – Jupiter Energetic Particle Detector Instrument
Right this does not correspond to the acronym but you know.. Jedi 😉
This experiment is similar to JADE except that it consists of only one detector and detects particles with lower energy.
JIRAM – Jovian Infrared Auroral Mapper
Again this one watches over auroras but also it makes infrared images of the atmosphere.
This is somewhat unnecessary camera that is going to collect pictures for public. There was even voting for what pictures it should take because it wont have so much time. As I said in the last post it is going to have some cool resolution but we will have to wait about month for it.
Juno also has magnetometer that will measure the strength of the magnetic field and its other attributes. It is quite big instrument with 3.6 meters height.
MWR – Microwave radiometer
Such thing was not used before on Jupiter so it could be huge surprise what we will see in microwave radiation because that is exactly what wavelength this instrument measures.
Ultraviolet Imaging Spectrometer – UVS
This one will watch Jupiter in ultraviolet. Here nice target are again the aurora because they are much easier to watch in UV especially because you can do it even during day.
Waves are basically two antennas which are about 3 meters long and then one smaller electronic device. This instrument is going to measure the interactions between magnetic field and atmosphere. The smaller device is mostly wire, turned 10,000 times around some bar.
From all of this it could seem that Juno is going to measure only magnetosphere and auroras though this is simply what you can do without needing to crush into the planet. (Which will happen anyway though Juno wont survive of course). All of these things are quite observable from far away and yet they can tell you a lot about the planet.