Why Star Trackers On-Board the CryoSat Satellite?

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Three fully autonomous Terma HE-5AS Star Trackers provide the precise pointing knowledge required for the main instrument, the SIRAL interferometer, on-board the CryoSat satellite. All three Star Trackers are mounted directly on the payload antenna bench of the CryoSat satellite for optimized structural stability between the star sensors and the payload sensors measuring frames.

Three fully autonomous Terma HE-5AS Star Trackers provide the precise pointing knowledge required for the main instrument, the SIRAL interferometer, on-board the CryoSat satellite. All three Star Trackers are mounted directly on the payload antenna bench of the CryoSat satellite for optimized structural stability between the star sensors and the payload sensors measuring frames.

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