Are Digital Image/Terrain/Elevation Models/Maps available for the Neptunian satellites?
No. The Astrogeology Branch of the United States Geological Survey in Flagstaff, Arizona, which produces such things, has not indicated that such a product is forthcoming. They should be contacted for further information. Information on DIMs of other planets and satellites is available on the Digital Image Models Page. URL: http://nssdc.gsfc.nasa.gov/planetary/dims.
