NST20-G3 Star Tracker
TY-Space Technology
The NST20-G3 is an upgraded, fully autonomous, high-precision, and high-dynamic attitude star tracker designed for spacecraft navigation.
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)
- ＜1″[3σ]
- Attitude accuracy (pointing/rolling) (2)
- ＜6″[3σ]
- Update rate
- 10 Hz
- Dynamic performance
- 5°/s
- Sensitivity
- 5.8Mv,Go.Ref star
- Exclusive angle sun
- ＜ 25°
- Exclusive angle earth
- ＜ 20°
- Data interface
- RS422/CAN
- Power consumption
- 4 W
- Supply voltage
- 28 V
- Design life
- 7years
About
The NST20-G3 star tracker is an upgraded version of the NST10-G1, offering enhanced performance for spacecraft attitude determination. It is a fully autonomous, highly reliable, high-precision, and high-dynamic attitude star tracker. It boasts an attitude determination accuracy of less than 1 arcsecond (3σ) and a dynamic performance of up to 5 degrees per second. The device features a refractive optical design and is built to withstand harsh space environments, with specified vibration tolerances for both flight and qualification, a working temperature range of -30 to 50 degrees Celsius, and radiation resistance up to 100 Krad [Si]. It has a field of view of 15°×15° (effective) and an update rate of 10 Hz. The star tracker also specifies exclusive angles for the Sun (less than 25°) and Earth (less than 20°) to avoid interference. Data communication is handled via RS422/CAN interfaces, and it operates on 28V input voltage with a power consumption of 4W, designed for a 7-year lifetime.
Documentation
Need the full ICD, test reports or a specific revision? Ask the supplier directly.