The Galilean satellite geological mapping program, 1986

The Galilean Satellite Geological Mapping Program was established to illuminate detailed geologic relations on the four large satellites of Jupiter. The program involves some 40 investigators from various universities, research institutes, and government offices in the United States, U.K., West Germany, and Italy. A total of 24 researchers was assigned to map 15 quadrangles on Ganymede, 15 to map 6 quadrangles on Io, and 3 to map 2 quadrangles on Europa. Maps of these three bodies are at a scale of 1:5 M except for three on Io that cover selected areas where high-resolution pictures permit compilation at 1:2 and 1:1 M scales. A 1:15,000,000 scale map of Callisto has been assigned; from it, quadrangles containing useful geologic information will be extracted later for mapping at a scale of 1:5,000,000.