{ "culture": "en-US", "name": "ShuttleRadarTopoMission_1arcsec", "guid": "", "catalogPath": "", "snippet": "This is a mosaic of 1 degree tiles from the Shuttle Radar Topography Mission (SRTM) flown February 11 - 22, 2000. Spatial resolution is 1 arcsecond. Tiles above 50N spatial resolution is 2 by 1 arcsecond. Vertical accuracy is 16m (90% confidence).", "description": "The Shuttle Radar Topography Mission (SRTM) aboard Endeavour was launched February 11, 2000 for an international project between the National Aeronautics and Space Administration (NASA), the National Geospatial-Intelligence Agency (NGA), the German and Italian space agencies. Endeavour orbited Earth 16 times each day during the 11 day SRTM. Radar data was collected for over 80% of the Earth\u2019s surface between 60N and 56S. \n\nThe radars used during the SRTM mission were flown on Endeavour missions in 1994. The C-band Spaceborne Imaging Radar and the X-Band Synthetic Aperture Radar (X-SAR). The technology was modified for the SRTM mission to collect interferometric radar. This mission used single-pass interferometry, which acquired two signals at the same time by using two different radar antennas. An antenna located on board the space shuttle collected one data set and the other data set was collected by an antenna located at the end of a 60-meter mast that extended from the shuttle. Differences between the two signals allowed for the calculation of surface elevation.", "summary": "This is a mosaic of 1 degree tiles from the Shuttle Radar Topography Mission (SRTM) flown February 11 - 22, 2000. Spatial resolution is 1 arcsecond. Tiles above 50N spatial resolution is 2 by 1 arcsecond. Vertical accuracy is 16m (90% confidence).", "title": "ShuttleRadarTopoMission_1arcsec", "tags": [ "Canada", "Saskatchewan", "Slope", "Digital Elevation Model", "Radar", "Shuttle", "NASA", "Topography" ], "type": "Image Service", "typeKeywords": [ "Data", "Service", "Image Service", "ArcGIS Server" ], "thumbnail": "thumbnail/thumbnail.png", "url": "http://itovmw424p.gos.ca:6080/arcgis/services/ShuttleRadarTopoMission_1arcsec/ImageServer", "minScale": 0, "maxScale": 0, "spatialReference": "", "accessInformation": "National Aeronautics and Space Administration (NASA) and National Geospatial-Intelligence Agency (NGA)", "licenseInfo": "For public use. Use at your own risk." }