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Landsat 7



Landsat 7 continued the long-term earth observation Landsat program begun in 1972. Landsat 7 was a joint project between NASA, NOAA, and the US Geological Survey to obtain continuous high-resolution imagary of the earth's surface for environmental monitoring, disaster assessment, land use and regional planning, cartography, range management, oil and mineral exploration. Under the Land Remote Sensing Act of 1992 (PL 102-555), the Landsat program returned to the US Government and responsibilities assigned to NASA, NOAA, and the USGS. The Landsat 7 carried one instrument: (the Enhanced Thematic Mapper Plus (ETM+) The ETM+ was an improved version of the ETM on Landsat 6. The instrument provided improved spatial resolution. The Landsat 7 spacecraft provided improved ephemeris and attitude determination. The Landsat 7 spacecraft was built by Lockheed Martin Missiles and Space.

Alternate Names

  • 25683
  • Landsat7

Facts in Brief

Launch Date: 1999-04-15
Launch Vehicle: Delta II 7920
Launch Site: Vandenberg AFB, United States
Mass: 2200 kg
Nominal Power: 1550 W

Funding Agencies

  • NASA-Office of Space Science Applications (United States)
  • National Oceanic and Atmospheric Administration (United States)


  • Earth Science

Additional Information

Questions and comments about this spacecraft can be directed to: Coordinated Request and User Support Office



NameRoleOriginal AffiliationE-mail
Mr. John L. DonleyDeputy Project ManagerNASA Goddard Space Flight Center
Dr. Darrel L. WilliamsProject ScientistNASA Goddard Space Flight

Other sources of Landsat 7 information

Landsat 7 program (NASA ARC)
Landsat 7 gateway (NASA GSFC)
Landsat mission (USGS)

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