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One of the primary objectives of the Lunar Reconnaissance Orbiter Camera (LROC) is to acquire stereo observations with theNarrow Angle Camera (NAC) to enable production of high resolution digital elevation models (DEMs). This work describes theprocesses and techniques used in reducing the NAC stereo observations to DEMs through a combination of USGS integratedSoftware for Imagers and Spectrometers (ISIS) and SOCET SET® from BAE Systems by a team at Arizona State University (ASU).LROC Science Operations Center personnel have thus far reduced 130 stereo observations to DEMs of more than 130 stereo pairsfor 11 Constellation Program (CxP) sites and 53 other regions of scientific interest. The NAC DEM spatial sampling is typically 2meters, and the vertical precision is 1–2 meters. Such high resolution provides the three-dimensional view of the lunar surfacerequired for site selection, hazard avoidance and planning traverses that minimize resource consumption. In addition to explorationanalysis, geologists can measure parameters such as elevation, slope, and volume to place constraints on composition and geologichistory. The NAC DEMs are released and archived through NASA’s Planetary Data System

the international archives of the photogrammetry, remote sensing and spatial information sciences/international archives of the photogrammetry, remote sensing and spatial information sciences

DIGITAL ELEVATION MODELS AND DERIVED PRODUCTS FROM LROC NAC STEREO OBSERVATIONS