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GRACE-FO Satellites at Vandenberg

The GRACE-FO satellites, attached to turntable fixtures, at the Astrotech Space Operations processing facility at Vandenberg Air Force Base, California (view 2).

The GRACE-FO satellites, attached to turntable fixtures, at the Astrotech Space Operations processing facility at Vandenberg Air Force Base, California. 

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USAF

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GRACE Follow-On will test a Laser Ranging Interferometer to measure intersatellite distance changes with unprecedented precision. 
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GRACE Follow-On – the future of satellite geodesy. Launching in 2017, this mission will be the first to use a Laser Ranging Interferometer to measure intersatellite distance changes with unprecedented precision.
Laser Ranging Interferometer
Illustration of GRACE-FO above Alaska.
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Illustration of one spacecraft of GRACE-FO above Alaska, with clouds, ocean and land below.
Illustration of GRACE-FO Above Alaska
Many of today’s most pressing climate science challenges hinge on knowing how and where water is moving on Earth. GRACE-FO will continue the successful partnership between NASA and the German Resea...
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Image of the spacecraft in orbit over Earth, with the black of space.
GRACE-FO Launch Press Kit
An artist's rendering of the twin GRACE-FO spacecraft.
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An artist's rendering of the twin GRACE-FO spacecraft in orbit around Earth.
GRACE-FO Rendering
The two GRACE-FO satellites are seen from GFZ’s Satellite Laser Ranging Station in Potsdam, Germany, on May 23, 2018 at 22:16 UTC and 22:17 UTC, respectively.
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The bright lights of the spacecraft are seen against the dark black of space.
GRACE-FO Satellites From Potsdam
The twin GRACE-FO satellites will pick up where the GRACE mission (2002-2017) left off, studying our changing planet.
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Video reel for media on the GRACE-FO mission to study Earth.
GRACE Follow-On Media Reel
A simplified example of how the distance between the GRACE-FO satellites changes as they pass from the Caribbean Sea across Colombia and Peru.
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A simplified example of how the distance between the GRACE-FO satellites changes as they pass from the Caribbean Sea across Colombia and Peru (which have higher mass than the oceans) to the Pacific Ocean. Panel 1: When both spacecraft are over the ocean, the distance between them is relatively constant.
How GRACE-FO Measures Gravity
GRACE-FO arriving at Vandenberg Air Force Base, California, from Germany. 
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GRACE-FO arriving at Vandenberg Air Force Base, California, from Germany.
GRACE-FO Arrives at Vandenberg
Flames from the SpaceX Falcon 9 rocket launching GRACE-FO into orbit.
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A close-up of the flames from the rocket launching GRACE-FO.
Rocket Flames
Illustration of GRACE-FO separating from Falcon 9 rocket after launch.
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Illustration of GRACE-FO separating from Falcon 9 rocket after launch.
GRACE-FO Separating from Rocket After Launch
3-2-1 liftoff of Falcon 9 with GRACE-FO! The Gravity Recovery and Climate Experiment Follow-on, or GRACE-FO, a collaboration between NASA and German Research Centre for Geosciences (GFZ) launched f...
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GRACE-FO launches aboard a Falcon 9.
GRACE-FO Launches Aboard a SpaceX Falcon 9
The GRACE mission launched in 2002, changing our understanding of Earth.
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The GRACE mission launched in 2002, changing our understanding of Earth.
15 Years of GRACE
GRACE-FO in a protective shipping container arriving at a new facility at Vandenberg Air Force Base, California.  
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GRACE-FO in a protective shipping container arriving at a new facility at Vandenberg Air Force Base, California.
GRACE-FO Arrives at Vandenberg
GRACE Flight Trajectory
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GRACE Flight Trajectory Illustration
GRACE Flight Trajectory
This animation shows the annual water storage changes over the U.S. from GRACE from 2003 - 2013.
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This animation shows the annual water storage changes over the U.S. from GRACE from 2003 - 2013.
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GRACE Follow-On continues the critical mission of measuring the movements of mass within and between Earth’s atmosphere, oceans, land and ice sheets, as well as below Earth’s surface.
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GRACE Follow-On, scheduled to launch in spring 2018, will continue the critical mission of measuring the movements of mass within and between Earth’s atmosphere, oceans, land and ice sheets, as well as below Earth’s surface.
GRACE-FO Fact Sheet
GRACE-FO mission logo 
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GRACE FO logo
GRACE-FO Logo
Illustration of GRACE-FO above Antarctica.
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Illustration of GRACE-FO above Antarctica.
GRACE-FO Above Antarctica
For 15 years, the GRACE mission has unlocked mysteries of how water moves around our planet. It gave us the first view of underground aquifers from space, and shows how fast polar ice sheets and mo...
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For 15 years, the GRACE mission has unlocked mysteries of how water moves around our planet. It gave us the first view of underground aquifers from space, and shows how fast polar ice sheets and mountain glaciers are melting.
15 Years of GRACE Earth Observations
The NASA/German Research Centre for Geosciences GRACE Follow-On spacecraft launches from Space Launch Complex 4E at Vandenberg Air Force Base in California.
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The rocket carrying GRACE-FO blasts off from the launch pad.
GRACE-FO Launches, Wide Shot
GRACE-FO, a collaboration between NASA and German Research Centre for Geosciences (GFZ), launched from Vandenberg Air Force Base on on May 22, 2018.
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A vertical image of the rocket launching in front of a blue sky.
GRACE-FO Launches
The SpaceX Falcon 9 rocket is seen with the NASA/German Research Centre for Geosciences GRACE Follow-On spacecraft onboard at Space Launch Complex 4E at Vandenberg Air Force Base in California. 
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The SpaceX Falcon 9 that will carry GRACE-FO to orbit sits on the launchpad.
GRACE-FO in Falcon 9 on Launchpad
Illustration of GRACE-FO in orbit (view 5).
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Illustration of GRACE-FO in orbit over Earth.
GRACE-FO in Orbit (View 5)
While the two spacecraft of the GRACE-FO mission go through testing at the IABG facitilty in Germany, engineers deploy the S-Band antenna boom to ensure that it works.
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While the two spacecraft of the GRACE-FO mission go through testing at the IABG facitilty in Germany, engineers deploy the S-Band antenna boom to ensure that it works.
Airbus Tests GRACE-FO Antenna Boom
Illustration of GRACE-FO in orbit (view 2).
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Twin spacecraft of GRACE-FO in orbit over Earth.
GRACE-FO in Orbit (View 2)

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