LANDSAT Thematic Mapper Data Received at the NASDA Station in Japan

The LANDSAT Thematic Mapper, a mechanical scanning radiometer, operates in 7 channels of electro-magnetic spectra, including visual, near infrared and thermal infrared. Data collected by the Earth Observation Center, NASDA, cover a circular area about 5000 km diameter. The Earth Observation Center receives TM data weekdays and every other Saturday. It performs both radiometric and geometric correction and distributes products in the form of magnetic tape and imagery.