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Rhea - High Resolution Mosaic

Target Name:  Rhea
Spacecraft:  Voyager
Produced by:  A. Tayfun Oner
Copyright: © 2000 A. Tayfun Oner

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The tracking technique known as "image motion compensation" or IMC was first used during the Voyager 1 encounter with Saturn for the 10 highest resolution Rhea images. IMC avoided nine pixels of smear for the 0.48 second exposures. Without the IMC this mosaic would be seriously blurred due to high speed of the spacecraft and the resulting image would not look much different from the bottom part of the mosaic, where a lower resolution wide angle image is used for the missing part.

IMC was later used successfully by the Voyager 2 spacecraft for nearly all of the near encounter images at Uranus and Neptune.

Copyright © 1995-2016 by Calvin J. Hamilton. All rights reserved.