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Stratospheric Aerosol and Gas Experiment (SAGE)

The Stratospheric Aerosol and Gas Experiment, SAGE, is a series of instruments designed by NASA to observe stratospheric ozone, aerosols, and water vapor from space. In the mid-1980s, scientists realized there was a problem with Earth’s protective coat of ozone...it was thinning. The SAGE family of instruments was pivotal in making accurate measurements of the amount of ozone loss in Earth’s atmosphere and helped leaders around the world institute an international treaty banning products containing harmful chemicals that destroy stratospheric ozone. SAGE is a key part of NASA’s mission to provide crucial, long-term measurements that will help humans better understand and care for Earth’s atmosphere.

SAGE III Team Passes Post-Launch Acceptance Review

On May 25, 2017, the SAGE III/ISS project conducted a successful Post-Launch Acceptance Review (PLAR), the final project lifecycle review. This marks the end of the “project” and the beginning of the science “mission.” Once commissioning is completed, the Science Directorate takes over SAGE III/ISS from Flight Projects Directorate.The mission operations team is continuing its work to complete commissioning and collect data from the instrument. The science team is analyzing that data and getting ready to release it to

The mission operations team is continuing its work to complete commissioning and collect data from the instrument. The science team is analyzing that data and getting ready to release it to the public where it will be freely available from the Atmospheric Science Data Center. That is expected to happen in the fall.

The science team is also gearing up to work with partners from all over the world on validating the ozone and aerosol data that is coming in. Validation will be done using ground-based systems and balloon-borne instruments as well. Together the team is working to refine operations and make any updates and changes to ensure they are getting the most amount of data possible and the most accurate, highest quality data possible.