As part of the Landsat programme Landsat 4 was launched in July 1982 and was operational until July 1987. It carried Thematic Mapper (TM) and MultiSpectral Scanner (MSS) instruments.

Launch date 7/16/1982 (TM transmission failed 1993)
Status / projected mission lifetime Landsat 5 project end 30/06/2001
Orbit parameters 99 minutes, 16 day, 233-orbit cycle
Nominal altitude 705 km geo-synchronous
Orbit type Polar, sun-synchronous
Inclination 98.2 °
Repeat period 16 days
Equatorial crossing time 09.45 local time
Swath width 183 km