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Landsat 7 is a USGS satellite launched in 1999 to provide up-to-date and cloud-free images of the Earth. It has a failed scan line corrector that affects 22% of the data, and its orbit will be decommissioned in 2021 after Landsat 9 launch.
The Landsat program is the longest-running enterprise for acquisition of satellite imagery of Earth, launched by NASA and USGS since 1972. Learn about the history, satellite chronology, spatial and spectral resolution, and uses of Landsat imagery for various fields of research and applications.
A comprehensive list of Earth-orbiting spacecraft with sensors used to collect imagery and measurements of the surface of the Earth. The list covers both public domain and private domain satellites, with name, status, agency, launch date, and description.
SRTM is a NASA project that obtained digital elevation models of Earth using radar on board the Space Shuttle Endeavour in 2000. The data are available in different versions, resolutions and formats, and can be used for geographic information systems and hydrological applications.
OLI is a remote sensing instrument aboard Landsat 8, launched in 2013, that images Earth's surface in nine spectral bands. OLI has applications in agriculture, mapping, water quality, ecology, geology, and cloud detection.
EROS is a USGS facility in South Dakota that manages and distributes satellite and aircraft data of the Earth's land surface. It also conducts research and systems development for Earth resources observation and science.
Using 7000 sensors per band (Spectrum band), the OLI on NASA's most recent LandSat (LANDSAT 8) Satellite, will image/view the entire earth every 16 days. Enhanced Thematic Mapper + (ETM+) [6] [7] Used in conjunction with OLI, the ETM + images the Earth in 30m Pixels. To ensure quality, each scan has a correction due to Scan-Line correcting.
ASTER GDEM is a product of the Advanced Spaceborne Thermal Emission and Reflection Radiometer, a Japanese remote sensing instrument onboard the Terra satellite. It provides high-resolution images of Earth in 14 bands of the electromagnetic spectrum, and creates detailed maps of surface elevation, temperature, and reflectance.