Juno's Perijove-11 Jupiter Flyby, Reconstructed in 125-Fold Time-Lapse, Preliminary

About

On February 07, 2018, NASA's Juno probe successfully performed her Perijove-11 Jupiter flyby. Good contact to Earth and incremented storage allowed taking very close-up images of good quality. The focus has been on the departure images showing Jupiter's south polar region. The movie is a reconstruction of the period of time between 2018-02-07T12:45:00.000 and 2018-02-07T16:37:00.000 in 125-fold time-lapse. It is based on 36 of the JunoCam images taken, and on spacecraft trajectory data provided via SPICE kernel files. In steps of five real-time seconds, one still images of the movie has been rendered from at least one suitable raw image. This resulted in short scenes, usually of a few seconds. Playing with 25 images per second results in 125-fold time-lapse. Resulting overlapping scenes have been blended using the ffmpeg tool. In natural colors, Jupiter looks pretty pale. Therefore, the still images are approximately illumination-adusted, i.e. almost flattened, and consecutively gamma-stretched to the 4th power of radiometric values, in order to enhance contrast and color.

The movie starts with a reconstructed in-bound sequence approaching Jupiter from north on its night side. Then the orbit approaches Jupiter down to an altitude of about 3,500 km a bit north of the equator. JunoCam looked towards Jupiter's limb during close flyby. This is followed by a transition into the outbound orbit, during which Jupiter's south polar region comes into the field of view.

The rendition is preliminary. A revised version might be provided later in 2018.

Archive

Wikimedia Commons, in Wikimedia Commons

Licence or status

CC BY 3.0, as the Wikimedia Commons states it.

Rights statement

Creative Commons Attribution 3.0

Credit

NASA / JPL / SwRI / MSSS / SPICE / Gerald Eichstädt

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