Subscribe free to our newsletters via your
. 24/7 Space News .




TECH SPACE
GOCE gives in to gravity
by Staff Writers
Paris (ESA) Nov 11, 2013


GOCE artwork

Close to 01:00 CET on Monday 11 November, ESA's GOCE satellite reentered Earth's atmosphere on a descending orbit pass that extended across Siberia, the western Pacific Ocean, the eastern Indian Ocean and Antarctica. As expected, the satellite disintegrated in the high atmosphere and no damage to property has been reported.

Launched in March 2009, the Gravity field and steady-state Ocean Circulation Explorer - 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, which is 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, together with its accelerometer measurements have also provided new insight into air density and wind speeds in the upper atmosphere.

On 21 October, the mission came to a natural end when it ran out of fuel. Over the past three weeks the satellite gradually descended.

While most of the 1100 kg satellite disintegrated in the atmosphere, an estimated 25% reached Earth's surface.

An international campaign involving the Inter-Agency Space Debris Coordination Committee and ESA's Space Debris Office monitored the reentry.

"The one-tonne GOCE satellite is only a small fraction of the 100-150 tonnes of man-made space objects that reenter Earth's atmosphere annually," said Heiner Klinkrad, Head of ESA's Space Debris Office.

"In the 56 years of spaceflight, some 15 000 tonnes of man-made space objects have reentered the atmosphere without causing a single human injury to date."

For an overview of the satellite's final days and recent scientific discoveries, visit the dedicated webpage at:

.


Related Links
GOCE at ESA
Space Technology News - Applications and Research






Comment on this article via your Facebook, Yahoo, AOL, Hotmail login.

Share this article via these popular social media networks
del.icio.usdel.icio.us DiggDigg RedditReddit GoogleGoogle




Memory Foam Mattress Review
Newsletters :: SpaceDaily :: SpaceWar :: TerraDaily :: Energy Daily
XML Feeds :: Space News :: Earth News :: War News :: Solar Energy News





TECH SPACE
European science satellite to break up late Sunday
Paris (AFP) Nov 09, 2013
Fragments from a science satellite are likely to crash to Earth late Sunday or early Monday after the one-tonne probe breaks up at the end of its mission, the European Space Agency (ESA) said on Friday. In a statement, the agency said when and where the pieces would land was still unclear. Experts have previously said the statistical risk to humans is remote. Several dozen fragments ... read more


TECH SPACE
NASA's GRAIL Mission Puts a New Face on the Moon

Moon mission yields clues to face of 'man in the moon'

Shanghai-built lunar rover set for lunar landing

Crowdfunded Lunar Spacecraft Reaches Funding Milestone

TECH SPACE
India Mars mission back on track after engine glitch: scientists

Opportunity Maneuvering Around A Dune Field

ExoMars Lander Module Named Schiaparelli

Prolific NASA Mars Orbiter Passes Big Data Milestone

TECH SPACE
NASA says new deep space vehicle on time for 2014 test

NASA's Orion Sees Flawless Fairing Separation in Second Test

Lockheed Martin Team Tests Orion's Protective Panels

UCF Lands NASA-Funded Center, Linchpin for Future Space Missions

TECH SPACE
China shows off moon rover model before space launch

China providing space training

China launches experimental satellite Shijian-16

China Moon Rover A New Opportunity To Explore Our Nearest Neighbor

TECH SPACE
Russians take Olympic torch on historic spacewalk

Russia launches Sochi Olympic torch into space

Spaceflight Joins with NanoRacks to Deploy Satellites from the ISS

Crew Completes Preparations for Soyuz Move

TECH SPACE
ASTRA 5B lands in French Guiana for its upcoming Ariane 5 flight

Kazakhstan say Baikonur launch site may be open to Western countries

ESA Swarm launch postponed

Europe's fifth ATV for launch by Arianespace begins its pre-flight checkout at the Spaceport

TECH SPACE
NASA Kepler Results Usher in a New Era of Astronomy

Astronomers answer key question: How common are habitable planets?

One in five Sun-like stars may have Earth-like planets

Mystery World Baffles Astronomers

TECH SPACE
Wageningen UR innovates in the ultra-low temperature freezing of research material

GOCE gives in to gravity

European science satellite to break up late Sunday

New chemistry: Drawing and writing in liquid with light




The content herein, unless otherwise known to be public domain, are Copyright 1995-2014 - Space Media Network. AFP, UPI and IANS news wire stories are copyright Agence France-Presse, United Press International and Indo-Asia News Service. ESA Portal Reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. Advertising does not imply endorsement,agreement or approval of any opinions, statements or information provided by Space Media Network on any Web page published or hosted by Space Media Network. Privacy Statement