Science
YUNYAO-1 18
Chinese Commercial Atmospheric Sounding Satellite · Beijing Yunyao Aerospace Technology (China)
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Yunyao-1 (18), part of a Chinese commercial GNSS radio occultation weather constellation — listening to how GPS, BeiDou, and other navigation signals bend passing through Earth's atmosphere to build vertical temperature and humidity profiles, the same fundamental technique Spire and COSMIC-2 use, but built as a competing Chinese commercial venture.
Its orbit
- Orbit
- Low Earth Orbitcan appear as a fast-moving star at dawn or dusk
- Altitude
- 307–312 mi (493–501 km)
- Inclination
- 50.0°
- One orbit
- 94.4 minutes15.3 orbits a day
- NORAD ID
- 58758
- Int’l designator
- 2024-009A
- Launched
- 2024
Orbital elements from CelesTrak, as of 22 Sep 2026.
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