HORUS Star Tracker
Sodern
High-performance single-box star tracker: <1.6kg, 3 arcsec XY precision, CMOS with TEC, LEO-GEO-deep space, qualified 2025, withstands severe mechanical and radiation environments.
Key figurescomparable across the catalogue
- Mass
- 1.6 kg
- Design life
- 18 years
- TRL
- 9
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
- Mass
- <1.6 kg
- Architecture
- Single-box (OH + EU integrated)
- Precision xy
- 3 arcsec
- Temporal noise (XY/Z)
- 3 / 22 arcsec
- Detector
- CMOS with thermoelectric cooler (TEC)
- Acquisition robustness
- <=6 deg/s
- Tracking robustness
- <=8 deg/s
- Sun exclusion angle
- 24 deg
- Orbital range
- LEO, MEO, GEO, Deep Space
- Design lifetime
- 10 years LEO / 18 years GEO
- Supply voltage
- 24-50V or 70-105V
- Interface
- MIL-STD-1553 (RS422 UART optional)
- TRL
- 9 (qualified 2025)
About
The Sodern HORUS is a high-performance, single-box star tracker integrating optical head, hardware, and software in one unit. Designed for non-centralized satellite architectures requiring independent attitude determination per star tracker unit. Mass is less than 1.6 kg. Precision is 3 arcsec XY with 3/22 arcsec temporal noise. CMOS detector with thermoelectric cooler for sensitivity in demanding thermal environments. Resistant to severe mechanical loads, extreme temperatures, radiation, and stray light. Configurable power supply at 24-50V or 70-105V with MIL-STD-1553 baseline interface (RS422 UART optional). Tracking at up to 8 deg/s, sun exclusion 24 degrees. Qualified in 2025 (TRL 9).
Documentation
Need the full ICD, test reports or a specific revision? Ask the supplier directly.