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Fact Sheet: Artists impression of the SOHO spacecraft
Artists impression of the SOHO spacecraft

LAUNCH DATE: 02-Dec-1995 08:08 UT  
MISSION END:31 December 2012 (extended mission), subject to a mid-term review in 2010
LAUNCH VEHICLE:Atlas II-AS (AC-121)
LAUNCH MASS:1850 kg
MISSION PHASE: Operational
ORBIT:
SOHO is operated from a permanent vantage point 1.5 million kilometers sunward of the Earth in a halo orbit around the first Lagrangian point.
ACHIEVEMENTS:
Discoveries from SOHO include:
  • Complex currents of gas flowing beneath the visible surface of the Sun
  • Rapid changes in the pattern of magnetic fields
SOHO has:
  • Made the largest and most detailed database of solar surface features.
  • Become the most prolific discoverer of comets in the history of astronomy, although not designed for the purpose.
THE MISSION:
SOHO (SOlar Heliospheric Observatory) is a space-based observatory, viewing and investigating the Sun from its deep core, through its outer atmosphere - the corona - and the domain of the solar wind, out to a distance ten times beyond the Earth's orbit.
NEWS AND ANNOUNCEMENTS
ESA's new SOHO science archive now online
Mission extensions approved for science missions
SOHO confirms 36 year old solar theory
LATEST STATUS REPORT
January 2009
November 2007
May 2007
SPECIAL FEATURES
SOHO mission report from 37th COSPAR meeting
SPECIAL SITES
SOHO Hot Shots
Real time images
Best of SOHO
 
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