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Ten Jovian days: The Voyager 1 Jupiter rotation movie

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NASA / JPL-Caltech / Ian Regan

Ten Jovian days: The Voyager 1 Jupiter rotation movie
Between 18:31 hours (UTC) on January 30 and 19:27 hours (UTC) on February 3, Voyager 1 took 3,636 NAC frames, shuttered through a repeating sequence of orange, green, and blue filters. Due to intermittent problems with the downlink between the spacecraft and the dishes of the Deep Space Network (DSN), more than a hundred of those images were lost forever, creating some gaps in the final rotation movie. Gaps are visible as noticeable jumps in the restored time-lapse sequence. The three most proximal Galilean moons all make cameo appearances, most notably a majestic transit of Ganymede, followed by its shadow a short time later. The low phase angle and equatorial vantage point provided ideal conditions for this historic observation. The movement seen in this video is a smoothed and averaged-out representation of the attitude of Voyager's scan platform as it took this sequence.

© This image is copyrighted with all rights reserved. Do not reuse in any way without permission. Contact us to request publication permission from the copyright holder: Ian Regan

Original image data dated on or about February 3, 1979

Explore related images: Jupiter's moons, BMSIL, pretty pictures, data art (was amateur image processing), Voyager 1 and 2, full-globe view, animation, Jupiter

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