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Launched in 1978, SeaSat was a NASA/JPL Earth Observation experimental mission, which had onboard the first ever spaceborne synthetic aperture radar (SAR) system for science applications. During its brief 106-day lifetime, SeaSat collected more information about the oceans than had been acquired in the previous 100 years of shipboard research.

The SAR instrument provided a wealth of information on diverse ocean phenomena such as sea-surface winds and temperatures, surface and internal waves, currents, sea ice, wind, and rainfall, thus giving the first global view of ocean circulation. It pioneered satellite oceanography and proved the viability of imaging radar for studying our planet. SeaSat's SAR instrument also provided spectacular images of Earth's land surfaces, thus demonstrating the immense potential of the SAR observation technology and generating great interest in satellite active microwave remote sensing.

SeaSat had three main objectives:

  • - to demonstrate techniques to monitor Earth's oceanographic phenomena and features from space on a global scale
    - to provide timely oceanographic data to scientists studying marine phenomena, and to users of the oceans as a resource (ocean shippers, fishermen, marine geologists, etc.)
    - to determine the key features of an operational full-time ocean-monitoring system

More details can be found at the below link:

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Improved TPM online dissemination service available

09 June 2017

ESA is pleased to announce that an improved access to the collections distributed online by ESA through the Third Party Missions programme has been deployed.

Two enhanced features have been set up to ease access to these collections:

  • A TPM online access list has been created to provide users with a centralised access to all the TPM online collections dissemination systems (17 TPM collections)
  • A new online dissemination system providing a geographical catalogue, a folder tree access and a filename search has been deployed for 13 TPM collections

Improved TPM online dissemination service

05 June 2017

ESA is pleased to announce that many of the TPM data distributed until today, plus some new ones, are being made available for direct download via a new online dissemination service called L-OADS.

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Operator NASA/JPL
Date of Launch 28 June 1978
Mission Status Out of service since 10 October 1978
Orbit Height 800 km
Orbit Type Non-sun-synchronous, near-circular polar
Repeat Cycle 17 days (sub-cycle of 3 days)
Resolution SAR: 25m
Swath Width SAR: 100km
Onboard Sensors provided under TPM SAR (Synthetic Aperture Radar)