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Fwd = Mars Atlas Revisited: The MGS MOC Wide Angle Map of Mars

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  • Frits Westra
    Forwarded by: fwestra@hetnet.nl (Frits Westra) Originally from: baalke@jpl.nasa.gov Original Subject: Mars Atlas Revisited: The MGS MOC Wide Angle Map of
    Message 1 of 1 , Feb 1 4:44 PM
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      Forwarded by: fwestra@... (Frits Westra)
      Originally from: baalke@...
      Original Subject: Mars Atlas Revisited: The MGS MOC Wide Angle Map of Mars
      Original Date: Fri, 1 Feb 2002 15:56:43 -0800 (PST)

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      Mars Global Surveyor
      Mars Orbiter Camera

      Mars Atlas Revisited: The MGS MOC Wide Angle Map of Mars

      MGS MOC Release No. MOC2-299, 1 February 2002

      [Image]

      In 1979, NASA published ATLAS OF MARS: THE 1:5,000,000 MAP SERIES, edited by
      R.M. Batson, P.M. Bridges, and J.L. Inge, of the U.S. Geological Survey in
      Flagstaff, Arizona. This was a compendium of airbrushed shaded relief maps,
      controlled photomosaics, and in a few cases albedo (shading) maps, mostly
      assembled from Mariner 9 survey images, with some gaps filled by Viking
      orbiter images. The planet was divided into thirty "quadrangles" or areas,
      each with an "Mars Chart" or "MC" number (MC-1 through MC-30). The
      equatorial region was portrayed in the Mercator projection, with Lambert
      Conformal Conic for the mid-latitudes and Polar Stereographic for the poles.

      Although digital products such as the Mars Digital Image Mosaic (MDIM) and
      various Mars Global Surveyor (MGS) Mars Orbiter Laser Altimeter (MOLA) maps
      have partially supplanted the ATLAS, it remains a standard desktop reference
      today.

      In 1999, the Mars Orbiter Camera (MOC) aboard the MGS orbiter acquired a
      global stereo image dataset using its red-filter Wide Angle Camera. We have
      recently completed a 256 pixel/degree (about 230 meters/pixel) mosaic of
      these images using software developed at Malin Space Science Systems (MSSS).
      To access both partial and full-resolution mosaics in Planetary Data System
      format, CLICK HERE: http://www.msss.com/mgcwg/mgm/

      The image above is a reproduction of the new MGS MOC Mars Digital Map. By
      clicking on the various sections (quadrangles) of the map, one can access
      the atlas at two resolutions: first a browse image at about 6 km/pixel, and
      by clicking on that browse image, at a resolution of about 1 kilometer per
      pixel (~0.62 miles per pixel). Each quadrangle is independently
      contrast-enhanced and labeled with a 5-degree grid. This is the first of
      several cartographic products that MSSS expects to release this year.

      The index map can be viewed at full resolution by clicking here:

      http://www.msss.com/mars_images/moc/moc_atlas/index.html

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      Malin Space Science Systems and the California Institute of Technology built
      the MOC using spare hardware from the Mars Observer mission. MSSS operates
      the camera from its facilities in San Diego, CA. The Jet Propulsion
      Laboratory's Mars Surveyor Operations Project operates the Mars Global
      Surveyor spacecraft with its industrial partner, Lockheed Martin
      Astronautics, from facilities in Pasadena, CA and Denver, CO.


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