  The datum of Digital Elevation Model of Moon, provided there, derived from raster
data of Lunar Orbiter Laser Altimeter (LOLA) experiment, version 2.0, which was part of
Lunar Reconnaissance Orbiter (LRO) mission, and distributed by Planetary Data System (PDS)
of NASA. Base resolution of the datum is 1/256°.
  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 software products of author.
  Also the datum contents set of spatial regions covering quadrangles from Lunar Astronomical
Chart and from coarse scale Lunar Quadrangles.

See site of author: www.runspect.com for more details.
Copyright (c) 2016 Yuri Feldman
