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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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EOLI-SA maintenance - 19 April 2017

18 April 2017

Due to scheduled maintenance activities, searching for some Third Party Missions collections in the EOLI-SA Catalogue may temporarily be unavailable on Wednesday 19 April 2017, from 09:00 to 17:00 CEST.

SeaSat Collection Static Map

16 October 2015

ESA is pleased to announce that the SeaSat collection is now available through the Static Map for immediate HTTP download. Data is made available free of charge.

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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)