THE CEOS DATABASE : Missions, Instruments and Measurements
Full Name Stratospheric Aerosol and Gas Experiment (SAGE)-III/International Space Station (ISS)
Status Operational (extended)
Mission Agencies NASA Launch Date 19 Feb 2017
Mission Links mission site | data access portal EOL Date Sep 2026
EO Portal Info NORAD Catalog # 25544 (TLE)
International Designator 1998-067A
Orbit Type Inclined, non-sun-synchronous Orbit Period 90 minutes
Orbit Sense Orbit Inclination 51 deg
Orbit Altitude 405 km Orbit Longitude
Orbit LST Repeat Cycle
Objectives and Applications 1-year design life, 3-year Phase E goal. Refurbishment of the SAGE-III instrument and of a hexapod pointing platform, and accommodation studies. This mission flies on the ISS. Objective is to monitor the vertical distribution of aerosols, ozone, and other trace gases in the Earth’s stratosphere and troposphere to enhance our understanding of ozone recovery and climate change processes in the upper atmosphere. Extended mission to 2026 awarded in 2020.
Mission Measurements
AtmosphereAerosols SAGE-III
Atmospheric Humidity Fields SAGE-III
Trace gases (excluding ozone) SAGE-III
Atmospheric Temperature Fields SAGE-III
Mission Instruments
SAGE-III - Stratospheric Aerosol and Gas Experiment
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