BackForward Satellite: Landsat-4 

Satellite details
Acronym Landsat-4
Full name Landsat-4.
Satellite Description
  • 4th flight unit of the LandSat programme.
  • Main mission: land observation.
Mass at launch 1941 kg Dry mass 1407 kg
Power 1430 W
Data access link no link provided
Data access information
  • Real-time data are available at appointed acquisition stations.
  • Off-line data are available from the USGS EROS DataCenter.
  • Free-access data are available from the EDC by Internet.
  • For details, see http://landsat.gsfc.nasa.gov/data/where.html.
Orbit Sunsynchronous orbit Altitude 705 km
ECT 10:00 desc

 

Space agency USGSNASA
Status Inactive
Details on Status
(as available)
  • Reduced operations because of lack of power, and data transmission capability limited to TDRSS because of loss of direct-read-out links since June 1983.
  • After failure of the TDRSS link in 1993, the satellite has been used for telemetry functions, i.e. no imaging capability.
  • Nominal decommissioning date is 15 June 2001.
Launch 16 Jul 1982 EOL 1993
Last update: 2015-07-28
Associated satellite programme and related satellites

Note: red tag: no longer operational , green tag: operational , blue tag : future

Satellite Payload

All known Instruments flying on Landsat-4

Acronym Full name
MSS Multi-Spectral Scanner
TM Thematic Mapper
GPS GPS Receiver
Show instrument status and calibration