PIA02723: Radar Image, Wrapped Color as Height, Lanai and West Maui, Hawaii
 Target Name:  Earth
 Is a satellite of:  Sol (our sun)
 Mission:  Shuttle Radar Topography Mission (SRTM)
 Spacecraft:  Space Shuttle Endeavour
 Instrument:  C-Band Interferometric Radar 
 Product Size:  2273 x 1515 pixels (w x h)
 Produced By:  JPL
 Producer ID:  MRPS95900 JSC2000-E-02753
 Primary Data Set:  SRTM Mission
 Full-Res TIFF:  PIA02723.tif (1.881 MB)
 Full-Res JPEG:  PIA02723.jpg (676.5 kB)

Click on the image above to download a moderately sized image in JPEG format (possibly reduced in size from original)

Original Caption Released with Image:

This topographic radar image shows Lanai (left) and western Maui (right). Data such as these will be useful for studying the history of volcanic activity on these now extinct volcanoes. SRTM data also will help local officials evaluate and mitigate natural hazards for islands throughout the Pacific. For example, improved elevation data will make it easier for communities to plan for tsunamis (tidal waves generated by earthquakes around the perimeter of the Pacific) by helping them identify evacuation routes and areas prone to flooding.

This image combines two types of data from the Shuttle Radar Topography Mission. The image brightness corresponds to the strength of the radar signal reflected from the ground, while colors show the elevation as measured by SRTM. Each cycle of colors (from pink through blue back to pink) represents an equal amount of elevation difference (400 meters or 1300 feet) similar to contour lines on a standard topographic map. This image contains about 1800 meters (5900 feet) of total relief.

The Shuttle Radar Topography Mission (SRTM), launched on February 11, 2000, uses 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. The mission is 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, an additional C-band imaging antenna 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) and the German (DLR) and Italian (ASI) space agencies. It is managed by NASA's Jet Propulsion Laboratory, Pasadena, CA, for NASA's Earth Science Enterprise,Washington, DC.

Size: 68 by 45 kilometers (42 by 28 miles)
Location: 20.8 deg. North lat., 156.7 deg. West lon.
Orientation: North toward upper left
Original Data Resolution: 30 meters (99 feet)
Date Acquired: February 18, 2000

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