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Hélios 2A


Designation 28492 / 04049A
Launch date 18 Dec 2004
Country of origin France
Mission Military: reconnaissance
Perigee/Apogee 666 km sun-synchronous
Inclination 98.1°
Period 98.2 min
Launch vehicle Ariane V165

End of life

Out of service Jan 2022
Cause Partly fragmented in Jan 2022. Started lowering orbit in Feb 2022.

sat-index articles

Technical data


Prime contractor Astrium under CNES control
Platform Spot Mk 3
Mass at launch 4200 kg
Mass in orbit  
Dimension 6.0 x 3.7 x 3.4 m
Solar array  
Stabilization 3-axis
DC power  
Design lifetime 9 years

Operates in visible and IR. Resolution: 40 to 60 cm

Very High Resolution (VHR) instrument: visible and IR. Resolution: 40 to 60 cm
Wide Angle (WA) instrument: similar to the Spot 5 one

The HRZ (High Resolution Zoom) imaging instrument can simultanously acquire an image of a given zone (visible our IR) and another overall view.

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