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COMETS EARTH JUPITER KUIPER BELT MARS MERCURY METEORITES NEPTUNE OORT CLOUD PLUTO SATURN SOLAR SYSTEM SPACE SUN URANUS VENUS ORDER PRINTS
PHOTO CATEGORIES SCIENCEVIEWS AMERICAN INDIAN AMPHIBIANS BIRDS BUGS FINE ART FOSSILS THE ISLANDS HISTORICAL PHOTOS MAMMALS OTHER PARKS PLANTS RELIGIOUS REPTILES SCIENCEVIEWS PRINTS
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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. |
