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CENTISPACE-1 S1

Chinese Commercial GNSS Augmentation Satellite · Beijing Future Navigation Technology (China)

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CentiSpace-1 S1, launched in 2018, is a Chinese commercial technology demonstration satellite testing GNSS augmentation signals designed to push positioning accuracy from BeiDou's standard several-meter precision down toward centimeter level — the kind of accuracy autonomous vehicles, precision agriculture, and robotic construction equipment genuinely need but standard satellite navigation alone can't reliably deliver. It's an early building block toward a planned larger Chinese commercial augmentation constellation, sitting alongside BeiDou rather than replacing it.

Its orbit

Orbit
Low Earth Orbitcan appear as a fast-moving star at dawn or dusk
Altitude
429–437 mi (691–703 km)
Inclination
97.9°
One orbit
98.6 minutes14.6 orbits a day
NORAD ID
43636
Int’l designator
2018-075A
Launched
2018

Orbital elements from CelesTrak, as of 22 Sep 2026.

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