SAGE is a spaceborne instrument that collects data on how changes in the amount of solar radiation falling on Earth's upper atmosphere affects the concentrations of aerosol and ozone at different levels.

 

SAGE I was launched onboard AEM-2 (Applications Explorer Mission 2) in 1979, SAGE II aboard ERBS (Earth Radiation Budget Satellite) in 1984, and SAGE III onboard a Russian Meteor-3M satellite on 10 December 2001.

 

launch date	Feb 18, 1979
launch vehicle	Scout D
launch site	Wallops Island
orbit	456 × 506 km × 55.0°
mass	147 kg