Digital Sun Sensor (DSS-APS-1) adopts APS flat detector, with the characteristics of digital signal processing, large view field, high precision, low power and small volume. It has already been used for GEO, MEO and LEO satellites and other spacecrafts. Since first flight in Oct., 2013, with trouble-free operation time in-orbit for nearly 20 months.

Accuracy: system error ≤ 0.05°（3σ）; random error ≤ 0.03°（3σ）

Field of view: optimized than -64°～+64°

Mass: 0.48±0.05kg

Operating temperature range: -30℃~+60℃

Update rate: no less than 30Hz (track state)

Power consumption: no more than 1W

Dimension: 106mm × 126mm × 42mm

External interface: RS422

Design lifetime: 8 years

Lead time: T0+6 months