Landsat 7's single instrument was the Enhanced Thematic Mapper Plus (ETM+), a scanning radiometer with visible and infrared bands giving 30-meter resolution in the visible bands and 15-m resolution in black and white. The spacecraft was derived from the Tiros-N/DMSP weather satellites.

Typical orbit: 668 km x 698 km at 98.2 deg. Mass: 1,969 kg (4,340 lb). Associated Launch Vehicle: Delta 7000.

• 1999 April 15 - Landsat 7 - Program: Landsat. Launch Site: Vandenberg. Launch Vehicle: Delta 7000. Mass: 1,969 kg (4,340 lb). Perigee: 702 km (436 mi). Apogee: 703 km (436 mi). Inclination: 98.20 deg. Period: 98.80 min.

  The vehicle entered a 175 km x 706 km x 98.2 deg initial orbit. 57 minutes after launch the Delta stage burned again to circularize the orbit at 668 km x 698 km and Landsat 7 separated from the stage. The Delta stage then burned to depletion of its propellant, into a 184 km x 710 km x 107.5 deg orbit that would decay quickly. The Landsat 7 remote sensing satellite was to be operated by NASA/Goddard until October 2000, when operations would be transferred to the US Geological Survey.

• NASA Report, Science Writer's Guide to Landsat, . Accessed at: http://eospso.gsfc.nasa.gov/ftp_docs/Landsat7_writer_guide.pdf. -right click to download pdfs!

• NASA Report, Landsat Factsheet, . Accessed at: http://www.gsfc.nasa.gov/gsfc/service/gallery/fact_sheets/earthsci/landsat/landsat7.pdf. -right click to download pdfs!

• McDowell, Jonathan, Jonathan's Space Report (Internet Newsletter), Harvard University, Weekly, 1989 to Present. Essential internet newsletter recording worldwide weekly space events. Accessed at: http://www.planet4589.org/jsr.html.

• NASA Report, The LANDSAT tutorial workbook: Basics of satellite remote sensing, . Accessed at: http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19830002188_1983002188.pdf. -right click to download pdfs!

• NASA Report, Landsat 7 Presskit, . Accessed at: http://landsat.gsfc.nasa.gov/announcements/landsat7.pdf. -right click to download pdfs!