TY-Space Technology (Beijing) Ltd.

HST-A1 is a fully autonomous high-precision attitude sensor with an accuracy of up to 0.3″ [3σ], which meets the requirements of ultra-high-precision satellite attitude determination; the star sensor detects a magnitude of 12Mv and a field of view of 5.5°.

Dimensions (star sensor): 140×130×223 (mm3)

Dimensions (light shield): 155×155×297 (mm3)

Mass (star sensor + light shield): 4700g

Radiation resistance: 100 Krad [Si]

Accuracy (pointing/roll): <0.3″ [3σ] <3″ [3σ]

Dynamic performance: 1.5°/s

Suppression angle: Sun: <30° Earth: <30°

Power consumption: 3.5W

Service life: 7 years