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GRACE-FO Satellites From Potsdam

The bright lights of the spacecraft are seen against the dark black of space.

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.

Credit

Sven Bauer/GFZ

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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.
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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.
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GRACE-FO launches aboard a Falcon 9.
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Between 2002 and 2016, Antarctica shed approximately 125 gigatons of ice per year, causing global sea level to rise by 0.35 millimeters per year.
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Between 2002 and 2016, Antarctica shed approximately 125 gigatons of ice per year, causing global sea level to rise by 0.35 millimeters per year.
Antarctic Ice Loss 2002-2016
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
The GRACE Intermediate Field 48 (GIF48 from UT-CSR) field model is an improved mean gravity field that combines GRACE observations and terrestrial gravity information.
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Static Gravity Field Anomalies
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
Work begins to build NASA’s twin satellites, under construction by Airbus Defense and Space.
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NASA’s twin satellites, under construction by Airbus Defense and Space, will be the follow-on spacecraft of the GRACE mission, which have contributed significantly to global climate research since 2002.
Build Commences on GRACE-FO Satellites
The rocket carrying GRACE-FO lifts off into a blue sky, with the Pacific Ocean beneath it.
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The rocket carrying GRACE-FO lifts off into a blue sky, with the Pacific Ocean beneath it.
GRACE-FO Launch, Sky and Sea
A 3D interactive model of NASA's GRACE-FO spacecraft.
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A 3D model of NASA's GRACE-FO spacecraft.
GRACE-FO 3D Model
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-Follow On (GRACE-FO) is a satellite mission that launched in May 2018. GRACE-FO will continue the work of the GRACE satellite mission tracking Earth's water movement around the globe. These d...
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Video for the GRACE-FO mission.
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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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The GRACE-FO satellites, attached to turntable fixtures, at the Astrotech Space Operations processing facility at Vandenberg Air Force Base, California (view 2).
GRACE-FO Satellites at Vandenberg
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
GRACE Flight Trajectory
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GRACE Flight Trajectory Illustration
GRACE Flight Trajectory
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
GRACE Rendering  
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GRACE Rendering
GRACE Rendering
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)
The GRACE-FO satellites were assembled by Airbus Defence and Space in Germany. The photo shows one of the satellites in the testing facility of IABG, an Airbus subcontractor, in Munich (view 3). 
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The GRACE-FO satellites were assembled by Airbus Defence and Space in Germany. The photo shows one of the satellites in the testing facility of IABG, an Airbus subcontractor, in Munich (view 3).
GRACE-FO Satellites in Testing
The NASA/German Research Centre for Geosciences GRACE Follow-On spacecraft launches onboard a SpaceX Falcon 9,  May 22, 2018, from Vandenberg Air Force Base in California.
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The rocket carrying GRACE-FO blasts off from the launch pad, with the ocean in the foreground.
GRACE-FO Launches, Ocean View
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
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
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
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 Follow-On (GRACE-FO) continues the legacy of GRACE, tracking Earth’s water movement and surface mass changes across the planet. Monitoring changes in ice sheets and glaciers, near-surface and...
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GRACE Follow-On (GRACE-FO) continues the legacy of GRACE, tracking Earth’s water movement and surface mass changes across the planet. Monitoring changes in ice sheets and glaciers, near-surface and underground water storage, the amount of water in large lakes and rivers, as well as changes in sea level and ocean currents provides an integrated global view of how Earth’s water cycle and energy balance are evolving.
GRACE-FO Mission Brochure
This image shows the mean annual amplitude of total water storage on Earth in 2007 as measured by GRACE.
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This image shows the mean annual amplitude of total water storage on Earth in 2007 as measured by GRACE.
Total Water Storage from GRACE, 2007

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