NASA Photo ID: S91-50687           File Name: 10063357.jpg
  Film Type: 4x5                     Date Taken: 11/07/91
  Title: Magellan 3D perspective of Venus surface in western Eistla Regio
  Description:
  Magellan synthetic aperture radar data was used to create this three- 
  dimensional (3D) perspective view of Venus' western Eistla Regio.  This 
  viewpoint is located at 1,310 kilometers (812 miles) southwest of Gula Mons 
  at an elevation of 0.178 kilometers (0.48 miles).  The view is of the 
  northeast with Gula Mons appearing on the horizon.  Gula Mons, a 3
  kilometer  (1.86 mile) high volcano, is located at approximately 22 degrees
  north  latitude, 359 degrees east longitude.  The impact crater Cunitz,
  named for  the astronomer and mathematician Maria Cunitz, is visible in the
  center of  the image. The crater is 48.5 kilometers (30 miles) in diameter
  and is 215  kilometers (133 miles) from the viewer's position.  Magellan
  synthetic  aperture radar data is combined with radar altimetry to develop
  a 3D map of  the surface.  Rays cast in a computer intersect the surface to
  create a 3D  view.  Simulated color and a digital elevation map developed
  by the United  States (U.S.) Geological Survey is used to enhance
  small-scale structure.   The simulated hues are based on color images
  recorded by the Soviet Venera 13  and 14 spacecraft.  The image was
  produced at the Jet Propulsion Laboratory  (JPL) Multimission Image
  Processing Laboratory and is a single frame from a  video released at the
  JPL news conference 03-05-91.  View was provided by JPL  with alternate
  number P-38720 MGN76.   
  Subject terms:
  CRATERS                                 
  LANDFORMS                               
  MAGELLAN SPACECRAFT (NASA)              
  RADAR DATA                              
  VENERA SPACECRAFT                       
  VENUS SURFACE                           
  VOLCANOES                               
  

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