The National Aeronautics and Space Administration (NASA) Aircraft Scanners data set contains digital imagery acquired from several multispectral scanners, including Daedalus thematic mapper simulator scanners and the thermal infrared multispectral scanner. Data are collected from selected areas over the conterminous United States, Alaska, and Hawaii by NASA ER-2 and NASA C-130B aircraft, operating from the NASA Ames Research Center in Moffett Field, California, and by NASA Learjet aircraft, operating from Stennis Space Center in Bay St. Louis, Mississippi. Limited international acquisitions also are available.

 In cooperation with the Jet Propulsion Laboratory and Daedalus 
 Enterprises,Inc., NASA developed several multispectral sensors. The
 data acquired from these sensors supports NASA's Airborne Science and
 Applications Program and have been identified as precursors to the
 instruments scheduled to fly on Earth Observing System platforms.

 THEMATIC MAPPER SIMULATOR

 The Thematic Mapper Simulator (TMS) sensor is a line scanning device  
 designed for a variety of Earth science applications. Flown aboard    
 NASA ER-2 aircraft, the TMS sensor has a nominal Instantaneous Field of    
 View of 1.25 milliradians with a ground resolution of 81 feet (25 meters)   
  at 65,000 feet. The TMS sensor scans at a rate of 12.5 scans per second   
  with 716 pixels per scan line. Swath width is 8.3 nautical miles    
 (15.4 kilometers) at 65,000 feet while the scanner's Field of View is    
 42.5 degrees. 

 NS-001 MULTISPECTRAL SCANNER 

 The NS-001multispectral scanner is a line scanning device designed to    
 simulate Landsat thematic mapper (TM) sensor performance, including a    
 near infrared/short-wave infrared band used in applications similar to those 
 of the TM sensor (e.g., Earth resources mapping, vegetation/land cover  
 mapping, geologic studies). Flown aboard NASA C-130B aircraft, the NS-001
 sensor has a nominal Instantaneous Field of View of 2.5 milliradians   with a
 ground resolution of 25 feet (7.6 meters) at 10,000 feet. The sensor has a
 variable scan rate (10 to 100 scans per second) with 699 pixels per scan line,
 but the available motor drive supply restricts the maximum stable scan speed
 to approximately 85 revolutions per second. A scan rate of 100 revolutions per
 second is possible, but not probable, for short scan lines; therefore, a
 combination of factors, including aircraft flight requirements and maximum
 scan speed, prevent scanner operation below 1,500 feet. Swath width is 3.9
 nautical miles (7.26 kilometers) at 10,000 feet, and the total scan angle or
 field of regard for the sensor is 100 degrees, plus or minus 15 degrees for
 roll compensation.     

 THERMAL INFRARED MULTISPECTRAL SCANNER     

 The Thermal Infrared Multispectral Scanner (TIMS) sensor is a line scanning 
 device originally designed for geologic applications. Flown aboard NASA
 C-130B, NASA ER-2, and NASA Learjet aircraft, the TIMS sensor has a    
 nominal Instantaneous Field of View of 2.5 milliradians with a ground    
 resolution of 25 feet (7.6 meters) at 10,000 feet. The sensor has a    
 selectable scan rate (7.3, 8.7, 12, or 25 scans per second) with 698 pixels  
 per scan line. Swath width is 2.6 nautical miles (4.8 kilometers) at   
 10,000 feet while the scanner's Field of View is 76.56 degrees.

The Aircraft Scanners data set contains digital imagery acquired from several multispectral scanners including NS-001 Mutispectral scanner, Daedalus thematic mapper simulator (TMS), scanners and the thermal infrared multispectral scanner (TIMS). Data are collected from selected areas over the conterminous United States, Alaska, and Hawaii by NASA ER-2 and NASA C-130B aircraft operating from the NASA Ames Research Center (ARC) in Moffett Field, California, and by NASA Learjet aircraft operating from Stennis Space Center in Bay St. Louis, Mississippi. Limited international acquisitions also are available.

description: The Aircraft Scanners data set contains digital imagery acquired from several multispectral scanners including NS-001 Mutispectral scanner, Daedalus thematic mapper simulator (TMS), scanners and the thermal infrared multispectral scanner (TIMS). Data are collected from selected areas over the conterminous United States, Alaska, and Hawaii by NASA ER-2 and NASA C-130B aircraft operating from the NASA Ames Research Center (ARC) in Moffett Field, California, and by NASA Learjet aircraft operating from Stennis Space Center in Bay St. Louis, Mississippi. Limited international acquisitions also are available.; abstract: The Aircraft Scanners data set contains digital imagery acquired from several multispectral scanners including NS-001 Mutispectral scanner, Daedalus thematic mapper simulator (TMS), scanners and the thermal infrared multispectral scanner (TIMS). Data are collected from selected areas over the conterminous United States, Alaska, and Hawaii by NASA ER-2 and NASA C-130B aircraft operating from the NASA Ames Research Center (ARC) in Moffett Field, California, and by NASA Learjet aircraft operating from Stennis Space Center in Bay St. Louis, Mississippi. Limited international acquisitions also are available.