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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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SRTM Perspective View with Landsat Overlay: Santa Monica Bay to Mount Baden-Powell, California
Title
SRTM Perspective View with Landsat Overlay: Santa Monica Bay to Mount Baden-Powell, California
Title
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Original Caption Released with Image:
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Los Angeles may be the world's entertainment capital, but it is a difficult place to locate television and radio antennas. The metropolitan area spreads from the Pacific Ocean to Southern California's upper and lower deserts, valleys, mountains, canyons and coastal plains. While this unique geography offers something for everyone in terms of urban, suburban, small-town, and even semi-rural living, reception of television and radio signals can be problematic where there is no line-of-sight to a transmitting antenna. Broadcasters must choose antenna sites carefully in order to reach the greatest number of customers. Most local television towers are located atop Mount Wilson (elevation 1740 m =5710 ft), which is located on the front range of the San Gabriel Mountains (indistinctly visible, just right of the image center). This site is preferable to the highest peak seen here (Mount Baden-Powell, 2865 m =9399 ft) because it's closer to the urban center and has fewer obstructing peaks. It is also situated at a protruding bend in the mountain front and has few obstructions to the left and right. Computer automated methods combined with elevation models produced by SRTM will quantitatively optimize such factors in the siting of future transmission antenna installations worldwide.
This perspective view looks northeastward from the Santa Monica Bay. The San Fernando Valley is on the left, Pasadena is against the mountain front at right-center, and downtown Los Angeles is on the coastal plain directly in front of Mount Baden-Powell. This image was generated by draping a Landsat satellite image over a preliminary topographic map from the Shuttle Radar Topography Mission (SRTM). Landsat has been providing visible and infrared views of the Earth since 1972. SRTM elevation data matches the 30-meter resolution of most Landsat images and will substantially help in analyses of the large and growing Landsat image archive.
The elevation data used in this image was acquired by the Shuttle Radar Topography Mission aboard the Space Shuttle Endeavour, launched on February 11,2000. SRTM used the same radar instrument that comprised the Spaceborne Imaging Radar-C/X-Band Synthetic Aperture Radar (SIR-C/X-SAR) that flew twice on the Space Shuttle Endeavour in 1994. SRTM was designed to collect three-dimensional measurements of the Earth's surface. To collect the 3-D data, engineers added a 60-meter-long (200-foot) mast, installed additional C-band and X-band antennas, and improved tracking and navigation devices. The mission is a cooperative project between the National Aeronautics and Space Administration (NASA), the National Imagery and Mapping Agency (NIMA) of the U.S. Department of Defense(DoD), and the German and Italian space agencies. It is managed by NASA's Jet Propulsion Laboratory, Pasadena, CA, for NASA's Earth Science Enterprise,Washingto n, DC.
Size: 29 kilometers (18 miles) view width, 70 kilometers (43 miles) view distance
Location: 34.2 deg. North lat.,
Original_Caption_Rel eased_with_Image
Los Angeles may be the world's entertainment capital, but it is a difficult place to locate television and radio antennas. The metropolitan area spreads from the Pacific Ocean to Southern California's upper and lower deserts, valleys, mountains, canyons and coastal plains. While this unique geography offers something for everyone in terms of urban, suburban, small-town, and even semi-rural living, reception of television and radio signals can be problematic where there is no line-of-sight to a transmitting antenna. Broadcasters must choose antenna sites carefully in order to reach the greatest number of customers. Most local television towers are located atop Mount Wilson (elevation 1740 m =5710 ft), which is located on the front range of the San Gabriel Mountains (indistinctly visible, just right of the image center). This site is preferable to the highest peak seen here (Mount Baden-Powell, 2865 m =9399 ft) because it's closer to the urban center and has fewer obstructing peaks. It is also situated at a protruding bend in the mountain front and has few obstructions to the left and right. Computer automated methods combined with elevation models produced by SRTM will quantitatively optimize such factors in the siting of future transmission antenna installations worldwide.
This perspective view looks northeastward from the Santa Monica Bay. The San Fernando Valley is on the left, Pasadena is against the mountain front at right-center, and downtown Los Angeles is on the coastal plain directly in front of Mount Baden-Powell. This image was generated by draping a Landsat satellite image over a preliminary topographic map from the Shuttle Radar Topography Mission (SRTM). Landsat has been providing visible and infrared views of the Earth since 1972. SRTM elevation data matches the 30-meter resolution of most Landsat images and will substantially help in analyses of the large and growing Landsat image archive.
The elevation data used in this image was acquired by the Shuttle Radar Topography Mission aboard the Space Shuttle Endeavour, launched on February 11,2000. SRTM used the same radar instrument that comprised the Spaceborne Imaging Radar-C/X-Band Synthetic Aperture Radar (SIR-C/X-SAR) that flew twice on the Space Shuttle Endeavour in 1994. SRTM was designed to collect three-dimensional measurements of the Earth's surface. To collect the 3-D data, engineers added a 60-meter-long (200-foot) mast, installed additional C-band and X-band antennas, and improved tracking and navigation devices. The mission is a cooperative project between the National Aeronautics and Space Administration (NASA), the National Imagery and Mapping Agency (NIMA) of the U.S. Department of Defense(DoD), and the German and Italian space agencies. It is managed by NASA's Jet Propulsion Laboratory, Pasadena, CA, for NASA's Earth Science Enterprise,Washingto n, DC.
Size: 29 kilometers (18 miles) view width, 70 kilometers (43 miles) view distance
Location: 34.2 deg. North lat.,
Original Caption Released with Image
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Original Caption Released with Image:
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118.2 deg. West lon.
Orientation: View toward the northeast, 3X vertical exaggeration
Image: Landsat bands 1, 2&4, 3 as blue, green, and red, respectively
Date Acquired: February 16, 2000 (SRTM), November 11, 1986 (Landsat)
Image: NASA/JPL/NIMA
Original_Caption_Rel eased_with_Image
118.2 deg. West lon.
Orientation: View toward the northeast, 3X vertical exaggeration
Image: Landsat bands 1, 2&4, 3 as blue, green, and red, respectively
Date Acquired: February 16, 2000 (SRTM), November 11, 1986 (Landsat)
Image: NASA/JPL/NIMA
Original Caption Released with Image
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Image Credit:
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NASA/JPL/NIMA/USGS
Image_Credit
NASA/JPL/NIMA/USGS
Image Credit
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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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Landsat
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Mission:
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Shuttle Radar Topography Mission (SRTM)
Mission
Shuttle Radar Topography Mission (SRTM)
Mission
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Spacecraft:
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Landsat
Spacecraft
Landsat
Spacecraft
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Spacecraft:
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Space Shuttle
Spacecraft
Space Shuttle
Spacecraft
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Target Name:
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Earth
Target_Name
Earth
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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C-Band Interferometric Radar
Instrument
C-Band Interferometric Radar
Instrument
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Instrument:
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Thematic Mapper
Instrument
Thematic Mapper
Instrument
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Product Size:
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973 samples x 779 lines
Product_Size
973 samples x 779 lines
Product Size
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Primary Data Set:
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SRTM Mission
Primary_Data_Set
SRTM Mission
Primary Data Set
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Producer ID:
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MRPS96591
Producer_ID
MRPS96591
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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Earth
facet_what
Earth
facet_what
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facet_what:
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C/X-Band Synthetic Aperture Radar
facet_what
C/X-Band Synthetic Aperture Radar
facet_what
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facet_what:
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Spaceborne Imaging Radar
facet_what
Spaceborne Imaging Radar
facet_what
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facet_what:
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Spaceborne Imaging Radar-C/X-Band Synthetic Aperture Radar
facet_what
Spaceborne Imaging Radar-C/X-Band Synthetic Aperture Radar
facet_what
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facet_what:
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Space Shuttle Endeavour
facet_what
Space Shuttle Endeavour
facet_what
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facet_what:
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Landsat
facet_what
Landsat
facet_what
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facet_what:
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Shuttle Radar Topography Mission
facet_what
Shuttle Radar Topography Mission
facet_what
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facet_what:
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SRTM
facet_what
SRTM
facet_what
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facet_what:
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C-Band Interferometric Radar
facet_what
C-Band Interferometric Radar
facet_what
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facet_what:
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Space Shuttle Orbiter
facet_what
Space Shuttle Orbiter
facet_what
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facet_what:
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Shuttle Radar Topography Mission (SRTM)
facet_what
Shuttle Radar Topography Mission (SRTM)
facet_what
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facet_where:
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Jet Propulsion Laboratory
facet_where
Jet Propulsion Laboratory
facet_where
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facet_where:
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Pacific Ocean
facet_where
Pacific Ocean
facet_where
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facet_where:
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California
facet_where
California
facet_where
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facet_where:
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Washington
facet_where
Washington
facet_where
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facet_where:
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Los Angeles
facet_where
Los Angeles
facet_where
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facet_where:
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San Fernando
facet_where
San Fernando
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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1994
facet_when
1994
facet_when
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facet_when:
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February 16, 2000
facet_when
February 16, 2000
facet_when
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facet_when:
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February 11,2000
facet_when
February 11,2000
facet_when
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facet_when:
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November 11, 1986
facet_when
November 11, 1986
facet_when
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|
facet_when_year:
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1994
facet_when_year
1994
facet_when_year
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|
facet_when_year:
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1986
facet_when_year
1986
facet_when_year
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facet_when_year:
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2000
facet_when_year
2000
facet_when_year
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Image #:
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PIA02779
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UID:
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SPD-PHOTJ-PIA02779
UID
SPD-PHOTJ-PIA02779
UID
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orignial url:
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orignial_url
orignial url
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