Science
SHIYAN-25 (SY-25)
Chinese Technology Demonstrator · CAST (China)
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Shiyan-25 (SY-25), continuing China's long-running Shiyan technology demonstration series, launched into an unusually specific 96.87° orbit to test new satellite bus and sensor systems ahead of future operational Chinese satellite generations. China's Shiyan program has run for well over a decade, and by satellite number 25 has become one of the country's most consistently active experimental satellite lines, feeding lessons learned into operational spacecraft across nearly every category.
Its orbit
- Orbit
- Low Earth Orbitcan appear as a fast-moving star at dawn or dusk
- Altitude
- 168–174 mi (270–281 km)
- Inclination
- 97.0°
- One orbit
- 89.9 minutes16.0 orbits a day
- NORAD ID
- 57047
- Int’l designator
- 2023-087A
- Launched
- 2023
Orbital elements from CelesTrak, as of 7 Nov 2026.
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