Juno's Perijove-05 Jupiter Flyby on 2017-03-27, Reconstructed from JunoCam Images and SPICE Data

2017-05-20 01:52 UT
Credit : NASA / JPL / SwRI / MSSS / Gerald Eichstädt © cc by
Submitted By : Maquet-80
Mission Phase : PERIJOVE 5

On March 27, 2017, Juno performed her Perijove 05 flyby (PJ-05) with all instruments on, including JunoCam.

JunoCam images covered all Jupiter latitudes, but some parts only with very acute angles.

This computer animation uses the JunoCam images of PJ-05 as textures, and SPICE trajectory data in order to reconstruct the flyby as seen from Juno's perspective.

For each still image, the according raw JunoCam image has been used directly to reconstruct Jupiter's appearence from the respective trajectory point.

The pointing is specific to this animation. In reality, Juno is rotatating once each 30 seconds.

The movie is 125-fold time-lapsed relative to real time.

The movie consists of 2703 still frames, reconstructed from the 16 Perijove-05 images #99, #100, #101, #102, #104, #1ß5, #106, #107, #108, #109, #110, #111, #112, #113, #115, and #116.

Brightness flickering, and other brightness changes in the movie are processing artifacts.

The movie is almost completely illumination corrected with a heuristic method, and stongly enhanced, with gamma=8 relative to square-root encoding.

But some of the illumination was added again, after enhancement, in order to obtain a better three dimensional appearance.

Brightness is adjusted for each still frame individually by using the 99% percentile as a reference value for brightness correction.

The simulated field of view is 80x45 degrees. The projection of the still images is cylindrical/spherical.

The stills have been calculated from the raw JunoCam images and SPICE data using a proprietary software developed for JunoCam image processing.

The stills have been assembled to a movie with ffmpeg.