MOS
Marine Observation Satellite
past Mission
Type
Orbiter
Launch
Feb. 19, 1987
Mission End
April 17, 1996
Objective
Environmental and Coastal Protection
Japan's first marine observation satellite, MOS-1 and its 1990 follow-up, MOS-1b, measured visible light, infrared, and microwave radiation to aid natural-resource and coastal management, and environmental protection.
![Artistis concept of MOS-1](https://science.nasa.gov/wp-content/uploads/2023/06/mos-1-jpg.webp?w=4096&format=png)
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