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Collection:
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NASA Planetary Photo Journal Collection
Collection
NASA Planetary Photo Journal Collection
Collection
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Title:
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Venus - Three-Dimensional Perspective View of Alpha Regio
Title
Venus - Three-Dimensional Perspective View of Alpha Regio
Title
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Original Caption Released with Image:
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A portion of Alpha Regio is displayed in this three-dimensional perspective view of the surface of Venus. Alpha Regio, a topographic upland approximately 1300 kilometers across, is centered on 25 degrees south latitude, 4 degrees east longitude. In 1963, Alpha Regio was the first feature on Venus to be identified from Earth-based radar. The radar-bright area of Alpha Regio is characterized by multiple sets of intersecting trends of structural features such as ridges, troughs, and flat-floored fault valleys that, together, form a polygonal outline. Directly south of the complex ridged terrain is a large ovoid-shaped feature named Eve. The radar-bright spot located centrally within Eve marks the location of the prime meridian of Venus. Magellan synthetic aperture radar data is combined with radar altimetry to develop a three-dimensional map of the surface. Ray tracing is used to generate a perspective view from this map. The vertical scale is exaggerated approximately 23 times. Simulated color and a digital elevation map developed by the U. S. Geological Survey are 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 JPL Multimission Image Processing Laboratory by Eric De Jong, Jeff Hall, and Myche McAuley, and is a single frame from the movie released at the March 5, 1991, press conference.
Original_Caption_Rel eased_with_Image
A portion of Alpha Regio is displayed in this three-dimensional perspective view of the surface of Venus. Alpha Regio, a topographic upland approximately 1300 kilometers across, is centered on 25 degrees south latitude, 4 degrees east longitude. In 1963, Alpha Regio was the first feature on Venus to be identified from Earth-based radar. The radar-bright area of Alpha Regio is characterized by multiple sets of intersecting trends of structural features such as ridges, troughs, and flat-floored fault valleys that, together, form a polygonal outline. Directly south of the complex ridged terrain is a large ovoid-shaped feature named Eve. The radar-bright spot located centrally within Eve marks the location of the prime meridian of Venus. Magellan synthetic aperture radar data is combined with radar altimetry to develop a three-dimensional map of the surface. Ray tracing is used to generate a perspective view from this map. The vertical scale is exaggerated approximately 23 times. Simulated color and a digital elevation map developed by the U. S. Geological Survey are 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 JPL Multimission Image Processing Laboratory by Eric De Jong, Jeff Hall, and Myche McAuley, and is a single frame from the movie released at the March 5, 1991, press conference.
Original Caption Released with Image
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Addition Date:
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1996-12-02
Addition_Date
1996-12-02
Addition Date
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Produced By:
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JPL
Produced_By
JPL
Produced By
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Mission:
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Magellan
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Spacecraft:
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Magellan
Spacecraft
Magellan
Spacecraft
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Target Name:
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Venus
Target_Name
Venus
Target Name
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Is a satellite of:
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Sol (our sun)
Is_a_satellite_of
Sol (our sun)
Is a satellite of
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Instrument:
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Imaging Radar
Instrument
Imaging Radar
Instrument
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Product Size:
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5000 samples x 4000 lines
Product_Size
5000 samples x 4000 lines
Product Size
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Primary Data Set:
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Magellan MIDRs
Primary_Data_Set
Magellan MIDRs
Primary Data Set
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Producer ID:
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P39168
Producer_ID
P39168
Producer ID
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facet_what:
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Sun
facet_what
Sun
facet_what
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facet_what:
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Venus
facet_what
Venus
facet_what
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facet_what:
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Earth
facet_what
Earth
facet_what
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facet_what:
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Magellan
facet_what
Magellan
facet_what
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facet_what:
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Venera 13
facet_what
Venera 13
facet_what
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facet_what:
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Meridian
facet_what
Meridian
facet_what
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facet_where:
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Venus
facet_where
Venus
facet_where
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facet_where:
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Jet Propulsion Laboratory (JPL)
facet_where
Jet Propulsion Laboratory (JPL)
facet_where
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facet_when:
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1963
facet_when
1963
facet_when
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facet_when:
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March 5, 1991
facet_when
March 5, 1991
facet_when
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facet_when_year:
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1991
facet_when_year
1991
facet_when_year
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facet_when_year:
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1963
facet_when_year
1963
facet_when_year
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Image #:
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PIA00481
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UID:
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SPD-PHOTJ-PIA00481
UID
SPD-PHOTJ-PIA00481
UID
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orignial url:
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orignial_url
orignial url
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