The Shuttle Radar Topography Mission (SRTM) is a research effort that obtained elevation data on a near-global scale to generate the most complete high-resolution digital topographic database of Earth to date. SRTM consisted of a specially modified radar system that flew onboard the Space Shuttle Endeavour during the 11-day STS-99 mission in February of 2000. To acquire topographic (elevation) data, the SRTM payload was outfitted with two radar antennas. One antenna was located in the Shuttle's payload bay, the other on the end of a 60-meter (200-foot) mast that extended from the payload bay once the Shuttle was in space. The technique employed is known as interferometric Synthetic Aperture Radar. M*A*S*H , see Corporal Walter (Radar) OReilly. ... The Space Shuttle Columbia seconds after engine ignition, 1981 (NASA). ... Shuttle Orbiter Endeavour (NASA Orbiter Vehicle Designation: OV-105), is the fifth and final, and therefore, the youngest and newest, operational NASA space shuttle to be built. ... This is a mission of the United States Space Shuttle // Crew Kevin R. Kregel (4), Mission Commander Dominic L. Pudwill Gorie (2), Pilot Janet L. Kavandi (2), Mission Specialist Janice E. Voss (5), Mission Specialist Mamoru Mohri (2), Mission Specialist (NASDA) - Japan Gerhard P.J. Thiele (1), Mission Specialist - Germany... This article is about the year 2000. ... Surface of the Earth Topography, a term in geography, has come to refer to the lay of the land, or the physiogeographic characteristics of land in terms of elevation, slope, and orientation. ... Interferometry is the applied science of combining two or more input points of a particular data type, such as optical measurements, to form a greater picture based on the combination of the two sources. ... The surface of Venus, as imaged by the Magellan probe using SAR Synthetic aperture radar (SAR) is a form of radar in which sophisticated post-processing of radar data is used to produce a very narrow effective beam. ...

The Shuttle Radar Topography Mission is an international project spearheaded by the National Geospatial-Intelligence Agency (NGA) and the National Aeronautics and Space Administration (NASA). NGA seal The U.S. National Geospatial-Intelligence Agency (NGA) is a United States government agency responsible for the tasking (collection), exploitation (analysis), and dissemination (distribution) of Geospatial Intelligence (GEOINT). ... NASA logo Listen to this article · (info) This audio file was created from an article revision dated 2005-09-01, and does not reflect subsequent edits to the article. ...

See also

• NASA World Wind
• Virtual Earth

World Wind is a virtual globe developed by NASA for use on personal computers running Microsoft Windows. ... MSN Virtual Earth is a free online virtual globe map service by Microsoft. ...

External links

• Official NASA SRTM site