Earth Imaging Journal: Remote Sensing, Satellite Images, Satellite Imagery
Breaking News
Artificial Intelligence has Great Strength in the Interpretation of Geodata
Potsdam, Frankfurt/Main, September 20, 2018. Everyone’s talking about artificial...
Map of the Month: Purchasing Power for Watches and Jewelry, Italy 2017
GfK's Map of the Month for September illustrates the...
Forward to the Moon: Airbus Wins ESA Studies for Future Human Base in Lunar Orbit
Bremen, 20 September 2018 – The European Space Agency...
Bluesky and Getmapping Win UK Gov Contract
Aerial mapping companies Bluesky and Getmapping are pleased to...
Mobile Mapping Market to Surpass $40bn by 2024: Global Market Insights, Inc.
The research report "Mobile Mapping Market Size, By Component...

GOCE's orbit was so low it experienced drag from the outer edges of Earth's atmosphere. The satellite's streamlined structure and electric propulsion system counteracted atmospheric drag to ensure the data it collected were of true gravity.

On Nov. 11, 2013, the European Space Agency’s GOCE satellite reentered Earth’s atmosphere on a descending orbit pass across Siberia, the western Pacific Ocean, the eastern Indian Ocean and Antarctica.

Launched in March 2009, GOCE has mapped variations in Earth’s gravity with unrivalled precision. The result is the most accurate shape of the “geoid”—a hypothetical global ocean at rest—ever produced. GOCE data are being used to understand ocean circulation, sea level, ice dynamics and Earth’s interior.

GOCE’s innovative ion engine, responsible for keeping the satellite at an incredibly low orbit of under 260 km, and its accelerometer measurements also have provided new insight into air density and wind speeds in the upper atmosphere.
On Oct. 21, 2013, the mission came to a natural end when it ran out of fuel. During the last three weeks the satellite gradually descended. While most of the 1,100-kg satellite disintegrated in the atmosphere, an estimated 25 percent reached Earth’s surface.

Image courtesy of ESA/AOES Medialab.

Read the full story.

Comments are closed.