The Sodern HYDRA is a star tracker with multiple heads designed for space applications.

It has 4 optical heads that can be connected to 2 electronic units with up to 8 m long cable.

HYDRA also consists of lenses made of radiation-hardened glasses as well as HAS-2 (CMOS) detector with a thermo-electric cooler.

It has baffle protection for direct sun and earth illumination and its electronic unit's lifetime can be extended with additional shielding for GEO missions.

Flight heritage

The Sodern HYDRA system has achieved flight heritage since 2012.

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Last updated: 2022-09-08



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