There are 3 images added between 3 December 2006 and 5 April 2012
Helios II  
Initial Operational Capability (IOC): 2005
Total Production: 2
Unitary Cost: USD$1.4 billion
Origin: France
Corporations: EADS Astrium
Parent System: Helios
Initial Operational Capability (IOC): 1995
Total Production: 4
Total Cost: USD$4.9 billion
Family Members: Helios
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Description: The Helios II is an improved variant of Helios earth observation satellite with enhanced electro-optical sensors and capability for operation in adverse weather conditions, day/night. Its earth observation package includes a medium resolution Spot 5 sensor for wide area optical and near infrared frequencies observation, and a high resolution HRS infrared sensor.

Helios II will provide higher resolution, observation of wider areas, pinpoint accuracy for surveillance of specific locations, night operation mode, increased availability for its customer, and faster data transfer over Helios I satellites.

Initially, the Helios II project was funded by France but in July 2001 Belgium joined this project with approximately 2.5% of the total cost slated for €2280 million (+$2.8 billion). In November 2001, Spain joined the Helios II investing €57 million (2.5%) .

The first Helios II satellite, Helios IIA, was launched in December 2004 and the second one, Helios IIB, was slated for launch in 2008. As planned, Helios 2A was launched by an Ariane 5G space launch system on December 18, 2004 from Kourou Space Station in the French Guiana.

The French Defense Procurement Agency (DGA) cleared Helios II for operational use by the three countries participating the program on April 7, 2005. This decision follows three extensive months of testing after the launch of Helios 2A late in 2004.

Helios II Specifications

Orbit: 700 kilometer (435 mile)
Service Life: 5 year (1,825 day)
CEP: Circular Error Probable
Meters (m)   Kilometers (km)   Nautic Miles (nm)   Inch (in)   Yard (yd)   Foot (ft)   Millimeter (mm)
Pound (lb)   Kilogram (kg)   kN (KiloNewton)   Ton (t)
Meters per Second (mps)   Kilometers per Hour (kph)   Knot (kt)   Miles per Hour (mph)
Liter (l)   Galon (gl)
Year (yr)   Minutes (min)   Second (sec)
Shaft-Horse-Power (shp)

Helios II News

There are 2 news between
8 Apr 2005 and 27 Apr 2010
Tuesday, April 27, 2010Helios IIB Observation Satellite Declared Operational
Friday, April 8, 2005France Clears Helios 2 for Operational Use

Operators & Related Equipment


Grand Total 23

Helios II Spacecraft Listing

SerialCountry - Launch Rocket - SiteStatusLaunch DateOperationalRetired
Helios IIA Ariane 5 - Kourou18 Dec 2004--
Helios IIB Ariane 5 - Kourou18 Dec 200927 Apr 2010-

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