The camera and the mission are not designed to study the moons of Jupiter. Only the poles and atmosphere of Jupiter will be imaged with high resolution. JunoCam has a field of view that is too wide to resolve any detail in the Jovian moons beyond 232 kilometers per pixel. Jupiter itself will only appear to be 75 pixels across from JunoCam when Juno reaches the furthest point of its orbit around the planet.[2] At its closest approaches JunoCam could achieve 15 km/pixel resolution from 4300 km, while Hubble has taken images of up to 119 km/pixel from 600 million km.[5]

The camera uses a Kodak image sensor, the KODAK KAI-2020, capable of color imaging at 1600 x 1200 pixels.[6] It has a field of view of 18 x 3.4 degrees with three filters to provide color imaging.[7]

https://en.wikipedia.org/wiki/JunoCam

I don’t understand how 1600 x 1200 pixels (aspect ratio of 1.333) is consistent with a FOV of 18 x 3.4 degrees (aspect ratio: 5.294), unless there is some kind of geometrical or motion distortion in the optics that is somehow corrected in the processing. Any suggestions?