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About 14 minutes before closest approach to Ida, this image was taken by Galileo's charge-coupled device (CCD) camera, illustrating the ~37 to 1 size difference between Ida and its moon (far right). Although the satellite appears to be "next" to Ida, it is actually slightly in the foreground. This image, along with the Near-Infrared Mapping Spectrometer data, helped scientists triangulate the bodies to determine that the satellite is about 100 kilometers from the center of Ida.
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