PIA02787: SRTM Perspective View with Landsat Overlay: Ventura, and Lake Casitas, California
 Target Name:  Earth
 Is a satellite of:  Sol (our sun)
 Mission:  Landsat 
Shuttle Radar Topography Mission (SRTM)
 Spacecraft:  Landsat
Space Shuttle Endeavour
 Instrument:  C-Band Interferometric Radar 
Thematic Mapper 
 Product Size:  1152 x 870 pixels (w x h)
 Produced By:  JPL
 Producer ID:  MRPS96817
 Primary Data Set:  SRTM Mission
 Full-Res TIFF:  PIA02787.tif (2.715 MB)
 Full-Res JPEG:  PIA02787.jpg (154.8 kB)

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Original Caption Released with Image:

Ventura, California is one of this state's oldest cities. Officially known as San Buenaventura, it was established in 1782 with the founding of the Mission San Buenaventura, the ninth of the 21 Spanish missions founded in California. In this perspective view generated from SRTM elevation data, the city can be seen occupying the shore of the Pacific Ocean and the nearby foothills. Lake Casitas, a reservoir and popular recreation area, is the dark blue feature in the center of the image. Holding back the 313,000 megaliter (254,000 acre-feet) storage capacity of the reservoir and visible as a very bright feature foreground of the lake, is the Casitas Dam, a 102-meter (334-foot) Earth fill dam. The reservoir and dam were built between 1956 and 1959 for the Federal Bureau of Reclamation's Ventura River Project. In addition to recreational use, Lake Casitas provides irrigation, municipal and industrial water to urban and suburban areas in Ventura County. For visualization purposes, topographic heights displayed in this image are exaggerated two times.

The elevation data used in this image was acquired by SRTM 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 Endeavour in 1994. SRTM was designed to collect three-dimensional measurements of Earth's land surface. To collect the 3-D SRTM data, engineers added a mast 60 meters (about 200 feet) long, installed additional C-band and X-band antennas, and improved tracking and navigation devices. The mission is a cooperative project between the NASA, the National Imagery and Mapping Agency (NIMA) of the U.S. Department of Defense, and the German and Italian space agencies. It is managed by NASA's Jet Propulsion Laboratory, Pasadena, Calif., for NASA's Earth Science Enterprise,Washington, D.C. JPL is a division of the California Institute of Technology in Pasadena.

Distance to Horizon: 54.5 kilometers (33.8 miles)
Location: 34.38 deg. North lat., 119.3 deg. West lon.
View: Toward the North
Date Acquired: February 16, 2000 SRTM, December 14, 1984 Landsat

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