NST20-G2 Star Tracker
TY-Space Technology
The NST20-G2 is a fully autonomous, highly reliable, and precise star tracker designed for attitude determination with high dynamic performance and a secondary baffle for sun exclusion.
Key figurescomparable across the catalogue
- Mass
- 1.2 kg
- Power
- 4 W
- Largest dimension
- 268 mm
- Design life
- 7 years
Normalised to common units so this product can be compared with others in its category. The supplier's own wording is below.
As published by the supplier
- Dimensions
- Sensor+Baffle 90×100×268（mm³）
- Mass
- Sensor+Baffle 1200 g
- Optical design
- Lens refracitive
- Environmental
- Vibration (FM) sine 13 g, random 12 grms
- Vibration (Qualification)
- sine 16 g, random 18 grms
- Working temperature
- -30~50（℃）
- Radiation resistance
- 100 Krad [Si]
- Performance
- Field of View 15°×15°[effective]
- Attitude accuracy (pointing/rolling)
- ＜3″[3σ]
- Update rate
- 15 Hz
- Dynamic performance
- 20°/s
- Sensitivity
- 5.8Mv,Go.Ref star
- Exclusive angle
- Sun: ＜ 25°
- Exclusive angle (2)
- Earth: ＜ 20°
- Data interface
- RS422/CAN
- Power consumption
- 4 W
- Supply voltage
- 28 V
- Design life
- 7years
About
The NST20-G2 is an upgraded version of the NST10-G1, offering fully autonomous operation, high reliability, and precision attitude determination. It boasts a pointing/rolling attitude accuracy of less than 3 arcseconds (3σ) and a dynamic performance of 20°/s. A secondary baffle is integrated to ensure optimal performance even at a Sun Exclusive Angle of 25°. The star tracker features a refractive optical design, a 15°×15° effective field of view, and an update rate of 15 Hz. It is designed to withstand harsh space environments, with specified vibration resistance (sine 13g/16g, random 12 grms/18 grms) and radiation resistance up to 100 Krad [Si]. The operating temperature range is -30°C to 50°C. Data communication is handled via RS422/CAN interfaces, and it operates on a 28V input voltage with a power consumption of 4W, offering a 7-year lifetime.
Documentation
Need the full ICD, test reports or a specific revision? Ask the supplier directly.