The datum of Digital Elevation Model of Mercury, included in the archive, derived from refactored data of Mercury Double Imaging System (MDIS) DEM, version 1 of MESSENGER mission, which was prepared by USGS, and distributed by Planetary Data System (PDS) of NASA. The refactoring was based on images from Narrow Angle Camera (NAC) and Wide Angle Camera (WAC) of the MDIS. Base resolution of the datum is 1/64°, but accuracy is much less than for same resolution DEM from Mercury Laser Altimeter (MLA) instrument, due principal physical constrains of the refactoring.
The datum presented here generally in form of .ZRS-files (stands Zipped Raster Set), which is proprietary compressed format of author of the datum. Separated files of the datum are in hierarchical and multi-resolution relation for optimization of speed and appearance upon using in Spatial Aspect Viewer and Spatial Aspect Explorer.
Also the datum contents set of spatial regions covered quadrangles of Mercury.
MercuryLongLatG.zip - Size: 360,243,531 bytes (343 MB); MD5: 62E1D0E9E4339C627B418694B0381C43.
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