earth online
  • All Categories
  • Data
  • News
  • Missions
  • Events
  • Tools
  • Activities
  • Instruments
  • Campaigns
  • Documents

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.

  • Instrument - Positioning/Navigation

    prompt photo

    PRARE

    The Precise Range And Range-Rate Equipment (PRARE) was a microwave tracking system on board the ERS-1 and ERS-2 missions.

  • Instrument - Scatterometers

    prompt photo

    SAR (ERS)

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