The thirdstage Star 48B solid rocket later propelled the spacecraft out of Earth orbit and on its way to Mars. MGS launched on Novematop a three-stage Delta II launch vehicle from launch pad 17A at Cape Canaveral Air Station, FL. mission launched to Mars since the Viking mission in 1976 (Albee et al., 2001). (2) The radius, still as a sphere, has been updated to conform to the IAU 2000 definition for Mars 3396190.0 m. (1) The polar gaps from 88 to 90 north and south have been filled by reprojecting polar PDS releases. This version is slightly updated from the original PDS (GeoScience Node) MOLA release. Pixel resolution is 463 meters per pixel (m). However, the total elevation uncertainty is at least ☓ m due to the global error in the areoid (☑.8 meters Neumann et al., 2001) and regional uncertainties in its shape (Neumann, 2002). The average accuracy of each point is originally ~100 meters in horizontal position and ~1 meter in radius (Neumann et al., 2001). These have been converted to elevations above the areoid as determined from a Martian gravity field solution GMM-2B (Lemoine et al., 2001), truncated to degree and order 50, and oriented according to current standards. The MOLA DEM represents more than 600 million measurements gathered between 19, adjusted for consistency (Neumann et al., 2001 Neumann, Smith & Zuber, 2003) and converted to planetary radii. This digital elevation model (DEM) is based on data from the Mars Orbiter Laser Altimeter (MOLA Smith et al., 2001), an instrument on NASA’s Mars Global Surveyor (MGS) spacecraft (Albee et al., 2001).
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