Star Tracker GEO
Autonomous star tracker for GEO (0.8 kg, 5 W, 1.5 arcsec cross-boresight at 22 Hz) with 7+ years prototype heritage.
Technical specifications
- Purpose
- Star-based satellite attitude determination (GEO)
- Year of release
- 2019
- Guaranteed service life
- 5 years
- Estimated production/delivery time
- 6 months
- Flight heritage
- Prototype flight experience over 7 years
- Customization
- Can be adapted to customer requirements
- Random error cross-boresight at 22 Hz (1σ)
- 1.5 arcsec
- Random error boresight at 22 Hz (1σ)
- 10 arcsec
- Random error cross-boresight at 10 Hz (1σ)
- 1 arcsec
- Random error boresight at 10 Hz (1σ)
- 7 arcsec
- Mass (including 30° baffle)
- 0.8 kg
- Dimensions (including 30° baffle)
- 149 × 100 × 137 mm
- Power consumption
- 5 W
- Sun exclusion angle
- 30 deg
- Supply voltage
- 10–32 V
- Operating temperature
- -40 to +50 °C
- TRL
- 8
About
The Star Tracker GEO is an autonomous star tracker designed for star-based satellite attitude determination in geostationary orbit (GEO). It achieves 1.5 arcsec cross-boresight (1σ) at 22 Hz or 1 arcsec at 10 Hz, with 10 or 7 arcsec boresight accuracy respectively. The unit including a 30-degree sun exclusion baffle weighs 0.8 kg, consumes 5 W, and operates at 10–32 V over -40 to +50 °C. Released in 2019 with a 5-year service life; prototype has accumulated more than 7 years of flight experience. Customizable.
Documentation
No public datasheet yet — request the datasheet / ICD from the supplier.
