The Juno spacecraft successfully made a third close flyby of Jupiter on 11 Dec 2016. It was initially captured in orbit on 4 July 2016 as I noted in this blog post. The next close pass will be in early February. This brief animation illustrates a close flyby as Juno skims barely above the cloud tops of Jupiter.
On board Juno is a video camera called JunoCam. During the passes, JunoCam captures images which are sent to Earth. They are available to the public for download and processing. NASA hopes the public will use the images in creative projects. The creations can then be uploaded back to the JunoCam site for others to view.
I downloaded three images in Red, Green, and Blue of the south polar region of Jupiter. The video above shows Juno approaching over the north pole, passing very close to the equator, then receding below the south pole with each orbit. My three images were taken when Juno was directly below Jupiter’s south pole.
Using Photoshop, I opened the three RGB files, adjusted them for intensity, them combined them into this color composite. The program allowed me to adjust the saturation of many different colors across the face of the planet for enhancement. I uploaded it back to JunoCam. The colors are not realistic. But they do show the differences and circulations more readily. That was fun.