OPNAV Images of Ganymede taken by the Galileo spacecraft of Ganymede on June 27, 1996, plus some optical navigation images. Clicking on the image will provide a larger browse image with the full photo caption.
Date: June 3, 1996
Distance from Ganymede: 9.8 million km (6.1 million miles)
This is first in a series of optical navigation frames, highly edited onboard the spacecraft, that will be used to fine-tune the spacecraft's trajectory as Galileo approaches Ganymede. The image, used for navigation purposes only, is the product of new computer processing capabilites on the spacecraft that allow Galileo to send back only the information required to show the spacecraft is properly targeted and that Ganymede is where navigators calculate it to be.
Another optical navigation image taken by the Galileo spacecraft.