APS High precision Star Sensor
APS High precision Star Sensor (ST-APS2-2) adopts APS flat detector with digital signal processing and integrative structure, has the characteristics of light weight, small volume and low power. It has already been used for GEO, MEO and LEO satellites and other spacecrafts. Since first flight in May., 2012, with trouble-free operation time in-orbit for more than 30 months.
Optical axis oriented direction precision: 5’’/3σ
Update rate: 4Hz
Dynamic performance: 0.5°/s
Field of view: 20° × 20°
Star sensing: 5.5Mv
Operating temperature range: -20℃~0℃
Mass：1.0kg
Power consumption: 1.56W
Dimension: 264mm × 136mm × 136mm
External interface: RS422
Design lifetime: 5 years
Lead time: T0+16 months