China Set to Launch New Amateur Satellite with “Sail Ball” Stabilization

Chinese Amateur Satellite Group (CAMSAT) has announced the impending launch of the CAS-7B satellite, also designated as BP-1B, a short-lived spacecraft that will carry an Amateur Radio payload. An unusual feature of the spacecraft is its “sail ball” passive stabilization system. The 1.5-U CubeSat is attached to a 500-millimeter flexible film ball — or sail — that will offer passive “pneumatic resistance” stabilization. CAS-7B is expected to remain in orbit for up to 1 month.

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