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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.

Viewing Posts from March 2017

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  • SAGE III Achieves First Light; Checkout upcoming planned measurements!

    The SAGE III instrument has been powered on and is collecting preliminary science data from the International Space Station. Prior to “first light”, the team completed activation of the instrument payload. On Wednesday, March 15, the SAGE III mission operations and engineering teams, along with on-site representatives of Thales Alenia Space – Italy (TAS-I) providing key […]

  • IAM, DMP, CMPs, powered on!

    On Friday, March 10, 2017, the very important first step in activation of the SAGE III/ISS payload was completed successfully. At approximately 10:01 EST, 28V Operational Power was applied by the HOSC to the Interface Adapter Module (IAM) and initialization proceeded nominally. From there, the Solid State Memory Card (SSMC) downlink was initiated and performed […]

  • SAGE III Instrument is installed on the Nadir Viewing Platform!

    On Wednesday, March 8 around 6:30 p.m. EST the SAGE III Instrument Payload was successfully installed on the Nadir Viewing Platform at ELC-4 on the outside of the space station. The mission operations team confirmed that electricity was flowing and the survival heaters were on with good temperature readings. The next step is activation which […]

  • SAGE Instrument and Nadir Viewing Platform Removed from SpaceX Dragon Trunk

    Overnight, Thursday, March 2 through Friday, March 3, the SAGE III Instrument Payload (IP) was successfully removed from the SpaceX Dragon trunk by the International Space Station robotics team based at NASA’s Johnson Space Center. The IP was installed on the Enhanced ORU Temporary Platform or EOTP which is supplying survival power until the transfer […]