Star Tracker ST-1

Nano Star Tracker ST-1

Star trackers are devices used for measuring the line-of-sight vector to celestial objects that can be seen by the sensor. These sensors keep a map of a certain segment of the universe in memory and compare this map with the star constellation visible through the sensor FOV. If the comparison is successful, the satellite’s attitude is defined in roll, pitch, and yaw.

Flight-proven Star Tracker ST-1 features the SoC system circuit, optimized design of star catalogue, and star map recognition processing algorithm. As one of the smallest star sensors in the market, the Star Tracker ST-1 can achieve observation accuracy 10″(3\sigma), dynamic performance 1.5°/s, making it the most cost-effective Star Tracker at present.

Nano Star Tracker ST-1

Star trackers are devices used for measuring the line-of-sight vector to celestial objects that can be seen by the sensor. These sensors keep a map of a certain segment of the universe in memory and compare this map with the star constellation visible through the sensor FOV. If the comparison is successful, the satellite’s attitude is defined in roll, pitch, and yaw.

Flight-proven Star Tracker ST-1 features the SoC system circuit, optimized design of star catalogue, and star map recognition processing algorithm. As one of the smallest star sensors in the market, the Star Tracker ST-1 can achieve observation accuracy 10″(3\sigma), dynamic performance 1.5°/s, making it the most cost-effective Star Tracker at present.

  • Highlight Features:
    • APS imaging detector using CMOS process, low power consumption, high resolution
    • Low-noise circuit design, ensuring high sensitivity, high SNR and high accuracy
    • Diversity of data interface, with RS422 serial port, I2C bus and LVDS bus of star map data
    • Compatible with CubeSat interface
    • Advanced and high-speed star map recognition algorithm, can achieve complete independent capture, initial capture time < 1.2 s
  • Specifications:
    • Measuring accuracy (X/Y axis, 3\sigma): 8″
    • Mass: 108 g
    • Power consumption: 1.2 W
    • Data update rate: 5 Hz
    • Dynamic performance: 1.5°
    • Solar inhibition angle (full): 80°
    • Field of view (full): Ф 21 °
    • Operating temperature: -30 °C to +40 °C