Norad ID: 40457
| Spacetrack Directory Name | MICROMAS |
| Orbit launches |
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| Deorbitation date |
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| Days in orbit | 6098 |
| Country/organisation of origin | USA (US) |
| Starting point | TYMSC (Baikonur Cosmodrome, Kazakhstan) |
Passive microwave spectrometer operating near the 118.75-GHz oxygen absorption line to observe convective thunderstorms, tropical cyclones, and hurricanes from a near-equatorial orbit at approximately 500-km altitude.