Science
SHIYAN-3 (SY-3)
Chinese Technology Demonstrator · CAST
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Shiyan-3 (SY-3), part of China's Shiyan ('Experiment') technology demonstration series, launched in 2008 to test new satellite bus and sensor technologies — a designation that, like Shijian, has occasionally served as cover for satellites with undisclosed military applications.
Its orbit
- Orbit
- Low Earth Orbitcan appear as a fast-moving star at dawn or dusk
- Altitude
- 487–499 mi (784–803 km)
- Inclination
- 98.6°
- One orbit
- 100.6 minutes14.3 orbits a day
- NORAD ID
- 33433
- Int’l designator
- 2008-056A
- Launched
- 2008
Orbital elements from CelesTrak, as of 22 Sep 2026.
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