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INSTRUMENTS

Explore the many instruments the European Space Agency use to observe the Earth. ESA offer data from a wide range of optical, radar, atmospheric, altimetric and gravimetric instrumentation.

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  • Instrument - Imaging Radars, Scatterometers

    Instrument - Imaging Radars, Scatterometers

    SAR (ERS)

    The Synthetic Aperture Radar (SAR) instrument aboard ERS-1 and ERS-2 was capable of high precision change detection of surface heights.

  • Instrument - Spectrometers/Radiometers

    Instrument - Spectrometers/Radiometers

    Thematic Mapper (TM)

    The Thematic Mapper (TM) was a multispectral scanning radiometer on Landsat 4 and Landsat 5.

  • Instrument - Spectrometers/Radiometers

    Instrument - Spectrometers/Radiometers

    Multi Spectral Scanner (MSS)

    The Multi Spectral Scanner (MSS) instrument was carried aboard the Landsat 1 to 5 satellites.

  • Instrument - Spectrometers

    Instrument - Spectrometers

    Vegetation (VGT)

    The main PROBA-V payload is the Vegetation sensor (VGT): a multispectral pushbroom spectrometer.

  • Instrument - Positioning/Navigation

    Instrument - Positioning/Navigation

    DORIS

    DORIS was used to determine the precise location of Envisat in orbit.

  • Instrument - Positioning/Navigation

    Instrument - Positioning/Navigation

    SSTI

    SSTI was a state-of-the-art GPS receiver on GOCE that was designed to operate in a low-Earth orbit.

  • Instrument - Altimeters

    Instrument - Altimeters

    RA-2

    The RA-2 instrument aboard Envisat acquired radar altimetry data over ocean, land and ice surfaces.

  • Instrument - Photon/Optical Detectors

    Instrument - Photon/Optical Detectors

    Operational Land Imager (OLI)

    The OLI, on board Landsat 8, measures in the visible, near infrared, and short wave infrared.

  • Instrument - Spectrometers/Radiometers

    Instrument - Spectrometers/Radiometers

    Enhanced Thematic Mapper Plus (ETM+)

    The Enhanced Thematic Mapper Plus (ETM+) is the main instrument on board Landsat-7.

  • Instrument - Spectrometers/Radiometers

    Instrument - Spectrometers/Radiometers

    MWR (Envisat)

    The MWR aboard Envisat measured integrated atmospheric water vapour column and cloud liquid water.

  • Instrument - Spectrometers/Radiometers

    Instrument - Spectrometers/Radiometers

    MERIS

    The MERIS instrument aboard Envisat was primarily dedicated to providing ocean colour measurements.

  • Instrument - Magnetic/Motion Sensors

    Instrument - Magnetic/Motion Sensors

    EGG

    The main objective of GOCE's EGG was to measure the three components of the Gravity-Gradient Tensor.

  • Instrument - Imaging Radars

    Instrument - Imaging Radars

    PALSAR

    The ALOS PALSAR was a successor sensor to the synthetic aperture radar on-board JERS-1.

  • Instrument - Spectrometers/Radiometers

    Instrument - Spectrometers/Radiometers

    ATSR-2

    Used for measuring sea-surface temperatures, cloud-top temperatures and vegetation monitoring.

  • Instrument - Imaging Radars

    Instrument - Imaging Radars

    ASAR

    ASAR ensures continuity with the image mode (SAR) and the wave mode of the ERS-1/2 AMI.

  • Instrument - Imaging Radars

    Instrument - Imaging Radars

    SAR (ERS-1)

    The ERS-1 satellite, launched on 17 July 1991, carried a Synthetic Aperture Radar (SAR).

  • Instrument - Spectrometers/Radiometers

    Instrument - Spectrometers/Radiometers

    MIRAS

    The MIRAS instrument is a passive microwave 2-D interferometric radiometer onboard the SMOS satellite.