Model of Landsat 4 satellite.
Model of Landsat 4 satellite.

The Details

  • Launch Date: July 16 , 1982
  • Status: decommissioned, June 15, 2001
  • Sensors: TMMSS
  • Altitude: 705 km
  • Inclination: 98.2°
  • Orbit: polar, sun-synchronous
  • Equatorial Crossing Time: nominally 9:45 AM (± 15 min.) local time (descending node)
  • Period of Revolution : 99 minutes; ~14.5 orbits/day
  • Repeat Coverage : 16 days

+ read about the history of Landsat 4

On Key

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Spectral Characterization

The measured wavelength locations of the ETM+ spectral bands are compared to Landat 5’s TM in Table 8.1 The spectral bandwidths are determined by the combined response of all optical

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