Back to Resources

STEREO twin solar observatory spacecraft

STEREO is NASA's paired solar-observatory spacecraft design. Its two nearly identical observatories fly in heliocentric orbits ahead of and behind Earth to provide stereoscopic views of the Sun, coronal mass ejections, and the heliosphere.

Follow this vehicle family

Alerts for directly linked future launches and major activity.

Identity

Aliases
Solar TErrestrial RElations ObservatorySTEREO A/BSTEREO twin observatories
Family Name
STEREO
Full Name
STEREO twin solar observatory spacecraft
Roles
orbiterobservatory
Status
active
Type
spacecraft

Details

Description
STEREO is NASA's paired solar-observatory spacecraft design. Its two nearly identical observatories fly in heliocentric orbits ahead of and behind Earth to provide stereoscopic views of the Sun, coronal mass ejections, and the heliosphere.
Dimensions
Height M
1.1
Length M
2
Width M
1.2
First Flight Year
2,006
Last Flight Year
2,006
Manufacturer
Operator
Spacecraft Specs
Launch Mass Kg
620
Reusability
expendable

Links

Assets & Meta

Creation Time
August 1, 2026 at 07:39:30 UTC
Updated Time
August 1, 2026 at 07:39:30 UTC

Other

Programs
-