JANU and GALA: JUICE Satellite

The project aims to develop and manufacture parts of the JANUS and GALA instruments for the Juice (Jupiter Icy moons Explorer) mission, proposed by the European Space Agency (ESA). These parts are the power supply and filter wheel for JANUS and the power supply for GALA. Juice's mission is to investigate the potential to house habitable environments in the moons of Jupiter (Europe, Callisto and Ganymede), and the oceans that are under its surface. In addition, it will observe and record information related to atmosphere, magnetosphere, rings and other satellites present on the mentioned planet. The mission aims to gather information and knowledge regarding the complex interaction of Jupiter and its icy moons. With regard to the JANUS and GALA instruments, the first is a medium/high resolution electronic camera equipped with a wheel of 13 different filters that will allow you to study the surface of one of Jupiter's moons: Ganymede. Through this camera, you can see colours and spectral characteristics of salts and minerals present on this moon. It will also analyze Jupiter's atmosphere and study its methane and hydrogen, while trying to determine the satellite's rotation parameters in order to determine its interior composition. As for GALA, it is a laser altimeter, whose usefulness is to position itself and obtain information of the height at which the surface explorer is at the time; it will work in coordination with the aforementioned camera and emit a beam of infrared light that will collide with the surface (of its satellites), which on its return to GALA will have measured the flight time of the photons allowing to draw a topographic profile of the satellite.