Objectives and Applications
6-year nominal mission life, currently in extended operations. In late 2020, Terra began to drift in its orbit when the mission stopped performing inclination adjust maneuvers. Atmospheric dynamics/water and energy cycles, atmospheric chemistry, physical and radiative properties of clouds, air-land exchanges of energy, carbon and water, vertical profiles of CO and methane vulcanology.
Full Name
Terra (formerly EOS AM-1)
aka EOS AM-1
Mission Status
Operational (extended)
Mission Agencies
Launch Date
18 Dec 1999
Mission Links
EOL Date
Sep 2027
Orbit Type
Sun-synchronous
Orbit Period
99 minutes
Orbit Sense
Descending
Orbit Inclination
98.2 deg
Orbit Altitude
705 km
Orbit Longitude
Orbit LST
10:05:00.000
Repeat Cycle
16 days
NORAD Catalog #
International Designator
ASTER - Advanced Spaceborne Thermal Emission and Reflection Radiometer |
| CERES - Cloud and the Earth's Radiant Energy System |
| MISR - Multi-angle Imaging SpectroRadiometer |
| MODIS - MODerate-Resolution Imaging Spectroradiometer |
| MOPITT - Measurements Of Pollution In The Troposphere |
| Category | Parameter | Instrument(s) |
| Atmosphere | Aerosols | MISR, MODIS |
| Atmospheric Humidity Fields | MODIS |
| Atmospheric Winds | MISR |
| Cloud type, amount and cloud top temperature | ASTER, MISR, MODIS |
| Cloud particle properties and profile | MODIS |
| Ozone | MODIS |
| Radiation budget | ASTER, CERES, MISR, MODIS |
| Trace gases (excluding ozone) | MOPITT |
| Atmospheric Temperature Fields | MODIS |
| Land | Albedo and reflectance | ASTER, MISR, MODIS |
| Landscape topography | ASTER |
| Vegetation | MISR, MODIS |
| Surface temperature (land) | ASTER, MODIS |
| Multi-purpose imagery (land) | ASTER, MODIS |
| Ocean | Ocean colour/biology | MISR, MODIS |
| Surface temperature (ocean) | MODIS |
| Multi-purpose imagery (ocean) | MODIS |
| Snow & Ice | Ice sheet topography | ASTER |
| Snow cover, edge and depth | MODIS |
| Sea ice cover, edge and thickness | ASTER, MODIS |
Selected IDN OpenSearch Results (search all 922 )
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