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Centre National D'Études Spatiales

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Published: June 19, 2015

SWOT is being jointly developed by NASA and Centre National D’Études Spatiales (CNES). Among other contributions, CNES will build the Doppler Orbitography and Radiopositioning Integrated by Satellite (DORIS) Antenna and Altimeter for the SWOT Payload Module.

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Part of the Surface Water and Ocean Topography (SWOT) satellite's science instrument payload sits in a clean room at NASA's Jet Propulsion Laboratory during assembly.  
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SWOT's science instrument payload sitting in a clean room during assembly.
Part of the SWOT satellite's science instrument payload in a clean room at NASA's Jet Propulsion Laboratory.
Emblem for the SWOT mission.
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Emblem for the SWOT mission.
SWOT Emblem
Amazon Fishermen
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Amazon Fishermen
Amazon Fishermen
A Flooded Forest in the Amazon
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A Flooded Forest in the Amazon
A Flooded Forest in the Amazon
A photograph of the Varzea Forest area of Brazil (2 of 4).
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A photograph of the Varzea Forest area of Brazil (2 of 4).
Varzea Forest, Brazil
An image of the original concept for the Water and Terrestrial Elevation Recovery (WATER) Mission, which later became SWOT.
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An image of the original concept for the Water and Terrestrial Elevation Recovery (WATER) Mission, which later became SWOT.
WATER Mission Concept Illustration
An artist’s concept of the SWOT spacecraft (March 2012).
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An artist’s concept of the SWOT spacecraft (March 2012).
SWOT Spacecraft (Artist Concept)
An artist’s concept of the SWOT spacecraft (February 2015).
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An artist’s concept of the SWOT spacecraft.
SWOT Spacecraft (Artist Concept)
An artist’s concept of the SWOT spacecraft (January 2012).
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An artist’s concept of the SWOT spacecraft (January 2012).
SWOT Spacecraft (Artist Concept)
Siberian Lakes
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Siberian Lakes
Siberian Lakes
Crowds flock to the Earth Sciences exhibits during the NASA Jet Propulsion Laboratory (JPL) "Open House" event, giving volunteers (red shirts) a chance to share information about their various miss...
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JPL Open House Earth Sciences Exhibits
JPL Open House Earth Sciences Exhibits
Canada is home to more than 30,000 lakes including these water bodies in Northern Alberta. The abundance of surface freshwater in Canada makes it a prime target for AirSWOT investigations.
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Northern Alberta Lakes, Canada
Northern Alberta Lakes, Canada
The SWOT Payload module consists of two primary components: the Ka-band Radar Interferometer (KaRIn) and the Nadir module.
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SWOT Payload
SWOT Payload
SWOT will collect data across a 75-mile (120-kilometer) wide swath, with a gap in the center for an altimetry track. This animation shows the collection of data over the state of Florida, which is ...
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An animation showing how SWOT will collect data once it is in space.
This animation shows a simulation of SWOT collecting data over the state of Florida.
Soccer Nets on a levee in the Amazon
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Soccer Nets on a Levee in the Amazon
Soccer Nets on a Levee in the Amazon
A photograph of the Varzea Forest area of Brazil (3 of 4).
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A photograph of the Varzea Forest area of Brazil (3 of 4).
Varzea Forest, Brazil
Artist's impression of the future SWOT satellite making sea surface height observations, even through clouds.
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Artist's impression of the future SWOT satellite making sea surface height observations, even through clouds.
Artist's Impression of the SWOT Satellite
Floodplain Channel in the Amazon
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Floodplain Channel in the Amazon
Floodplain Channel in the Amazon
Alaska lakes.
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Alaska lakes
Alaska Lakes
Visiting Scout uses a color-coded, calibrated stick to determine "sea surface topography" within a wooden box while his sister records his results by placing stickers on a card.
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Visiting Scout uses a color-coded, calibrated stick to determine "sea surface topography"
Probing the Depths of "SWOT in a Box"
Artist’s concept of seven altimeters orbiting Earth: Jason-CS/Sentinel-6B, SWOT, Sentinel-6A, Jason 3, TOPEX/Poseidon, Jason 1 and OSTM/Jason 2.
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graphic of 7 altimeters orbiting Earth
Altimeter Series
Disappearing lakes in Barrow, Alaska.
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Disappearing lakes in Barrow, Alaska.
Disappearing Lakes in Barrow, Alaska
SWOT technologies - advanced wide-swath technology, ocean and surface water topography measurements, and high-resolution products - will support such societal needs as dams, shipping, and surface w...
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SWOT Technologies and Societal Needs
SWOT Technologies and Societal Needs
The first 90 days of the SWOT science mission will be flown in a "fast-sampling" phase that revisits specific areas once per day. This phase will begin after a 90-day commissioning phase for engine...
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This image shows a map of the 1-day repeat orbit that will occur during the calibration-validation (CalVal) phase for SWOT.
SWOT 1-Day Repeat Orbit
Lake Calado, Amazon
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Lake Calado, Amazon
Lake Calado, Amazon