The Philus Sulcus quadrangle is located in the anti-Jovian hemisphere of Ganymede, the third and largest of the Galilean satellites. The 180 meridian defining the quadrangle s east boundary passes through the anti-Jovian point at the equator, and the 270 meridian forming the quadrangle s west boundary crosses the trailing point in the satellite s orbit. The surface is about equally divided between light and dark materials whose albedos may differ as a result of slightly different silicate contents. All attributes created during the creation process were verified by displaying the lines in both the database and the spatial coverage, but no formal tests were performed.
Line geometry is topologically clean.
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