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MISSIONS
Explore the European Space Agency's Earth Observation satellite missions. Learn all about ESA's dedicated Earth Explorers or collaborations with other agencies through the Third Party Missions programme.
Mission - Copernicus Sentinels
Copernicus Sentinel-1
The Copernicus Sentinel-1 mission comprises a constellation of two polar-orbiting satellites, operating day and night performing C-band synthetic aperture radar imaging, enabling them to acquire imagery regardless of the weather.
Mission - Copernicus Sentinels
Copernicus Sentinel-3
Copernicus Sentinel-3 is an European Earth Observation satellite mission developed to support Copernicus ocean, land, atmospheric, emergency, security and cryospheric applications.
Mission - Earth Explorers
CryoSat
CryoSat determines variations in the thickness of continental ice sheets and marine ice cover. Europe's first ice mission is an advanced radar altimeter specifically designed to monitor the most dynamic sections of Earth's cryosphere.
Mission - Heritage Missions
Envisat
Envisat was ESA's successor to ERS. Envisat carried ten instruments aboard for a wide range of Earth observing fields. The mission was operational from 2002 to 2012.
Mission - Heritage Missions
ERS
The ERS programme was composed of two missions, ERS-1 and ERS-2, which together observed the Earth for 20 years, from 1991 to 2011.
Mission - Earth Explorers
FLEX
The FLEX mission will provide global maps of vegetation fluorescence, which can be converted into an indicator of photosynthetic activity.
Mission - Third Party Missions
FSSCat
The FSSCat mission was an innovative concept that consisted of two federated 6-Unit Cubesats, called ³Cat-5/A and ³Cat-5/B, which operated in support of the Copernicus Land and Marine Environment services.
Mission - Earth Explorers
GOCE
ESA's Gravity field and Ocean Circulation Explorer (GOCE) mission mapped Earth's geoid very accurately, opening a window into Earth's interior structure as well as the currents circulating within the depths of its oceans.
Mission - Third Party Missions
ICEYE
As of June 2023, 27 X-band Synthetic Aperture Radar (SAR) satellites have been launched for the ICEYE constellation. This enables all-weather Earth observation.
Mission - Heritage Missions
JERS-1
The overall objectives of JERS-1 (Japanese Earth Resources Satellite) were the generation of global data sets with SAR and OPS sensors aimed at surveying resources, establishing an integrated Earth observation system
Mission - Heritage Missions
KOMPSAT-2
KOMPSAT-2 (Korea Multi-Purpose Satellite-2), also known as Arirang-2, was developed by KARI (Korea Aerospace Research Institute) to continue the observation programme of the KOMPSAT-1 mission.
Mission - Heritage Missions
MOS-1/1B
MOS-1 and 1B, Japan’s first marine observation satellites, were designed to monitor ocean currents, sea surface temperature, atmospheric water vapour, ocean chlorophyll levels, precipitation, and land vegetation.
Mission - Heritage Missions
NOAA POES
NOAA's AVHRR sensor is carried on the POES mission, a constellation of polar orbiting weather satellites.
Mission - Third Party Missions
OceanSat-2
OceanSat-2 provides service continuity for the operational users of the OCM (Ocean Colour Monitor) instrument launched in 1999 on board the predecessor IRS-P4/OceanSat-1 mission.
Mission - Third Party Missions
Pléiades Neo
Pléiades Neo is a very high resolution optical constellation of two identical satellites phased at 180° from each other.
Mission - Third Party Missions
PROBA-1
PROBA-1 is a technology demonstration satellite that later became an operational Earth observation mission.
Mission - Heritage Missions
RADARSAT
The RADARSAT programme consists of a pair of remote sensing satellites from the Canadian Space Agency (CSA).
Mission - Heritage Missions
Seasat
On board Seasat was the first-ever space-borne synthetic aperture radar (SAR) system for science applications.
Mission - Earth Explorers
SMOS
The Soil Moisture and Ocean Salinity (SMOS) mission is dedicated to making global observations of soil moisture over land and salinity over oceans.
Mission - Third Party Missions
Spire
Spire Global's constellation of Lemur nanosatellites offer satellite-based maritime, aviation and weather tracking.