Fig. 2. Voyager 2 IRIS Approach Mosaic of Ganymede.

The mosaic is composed of about 150 spectra taken at ranges between 178,000 and 92,000 km. Each circular field of view has been individually projected onto the surface from the position from which it was taken, accounting for the distortion of some of the circles. Spectrum locations have been corrected for pointing errors as described in Chapter 2. The base image is wide-angle frame 20635.51, obtained during the mosaic. The latitude/longitude grid is aligned with the image using the the control network of Davies and Katayama (1981), but does not include their re-definition of the longitude system. C.f. Fig. 15
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