LANDSAT 4

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Satellite characteristics

Launch Date - End 16 July 1982 - 15 June 2001

Status Decommissioned

Orbit type polar, sun-synchronous

Altitude 705

Orbit inclination 98.2

Equatorial crossing time 09:45:00

Orbit period 99

Satellite family: LANDSAT

The Landsat Program is a series of Earth-observing satellite missions jointly managed by NASA and the U.S. Geological Survey. Since 1972, Landsat satellites have collected information about Earth from space. This science, known as remote sensing, has matured with the Landsat Program.

Landsat 1 (formerly named Earth Resources Technology Satellite -ERTS-1-) was launched on July 23, 1972. The launches of Landsat 2, Landsat 3, and Landsat 4 followed in 1975, 1978, and 1982, respectively.
When Landsat 5 launched in 1984, no one could have predicted that the satellite would continue to deliver high quality, global data of Earth’s land surfaces for 28 years and 10 months, officially setting a new Guinness World Record for "longest-operating Earth observation satellite." Landsat 6 failed to achieve orbit in 1993.
Landsat 7 successfully launched in 1999 and, along with Landsat 8, which launched in 2013, continues to provide daily global data. Landsat 9 is planned to launch in late 2020.

More information : The Landsat Mission (USGS)

Sensor characteristics

Sensor name MSS1 (Multispectral Scanner 1)
Sensor short description
Sensor type Imaging radiometer (Vis/IR)
Resolution class Medium (30 - 300 m)
Swath width (at nadir) 185 km
Sensor name TM (Thematic Mapper)
Sensor short description
Sensor type Imaging radiometer (Vis/IR)
Resolution class High (5 - 30 m)
Swath width (at nadir) 185 km