Voyager and Galileo Images of Ganymede, The Ganymede images and mosaics thread |
Voyager and Galileo Images of Ganymede, The Ganymede images and mosaics thread |
May 18 2007, 09:43 PM
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IMG to PNG GOD Group: Moderator Posts: 2251 Joined: 19-February 04 From: Near fire and ice Member No.: 38 |
I've been processing some of the high resolution Galileo Ganymede images recently. As far as I know the two mosaics below have not appeared at the official websites (at least not in this form) so in a sense they are 'new'.
The first one was obtained during the G1 flyby in 1996. It covers a part of Memphis Facula which is centered at roughly 15°N, 132°W. The images were obtained at a distance of approximately 5000 km from Ganymede's center. The second one was obtained during the G28 flyby in May 2000. It is centered near 14.5°S, 319.7°W. The images making up the mosaic were obtained at a distance of roughly 4500 km from Ganymede's center. I will probably post more Ganymede mosaics later this month or next month. |
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May 21 2007, 07:57 PM
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Member Group: Members Posts: 241 Joined: 16-May 06 From: Geneva, Switzerland Member No.: 773 |
It's surely the most difficult mosaic to construct (if not impossible !). At least you tryed. Thank you Bjorn.
Indeed, the four images may not overlap. The same happened with the G1 Uruk Sulcus high resolution mosaic, but in that case, there were nice Voyager 2 context images. Even if the four pictures do not really match, the mosaic anyway gives a better idea about the fine structure and topography of this terrain at high resolution. Concerning the polar cap boundary, I did not expect to see something really sharp, but at least less gradual !! Ganymede is still one of my favourite "worlds", and it's really a pleasure for me to follow this thread. Marc. |
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