ST400
AAC Clyde Space
High-performance star tracker for small satellites providing sub-arcsecond attitude accuracy for demanding pointing and science missions.
Technical specifications
- Attitude Accuracy (cross-boresight)
- <3 arcsec (1σ)
- Attitude Accuracy (roll)
- <10 arcsec (1σ)
- Update Rate
- Up to 10 Hz
- Acquisition Time
- <2 s (initial), <0.2 s (tracking)
- Field of View
- 10° x 10°
- Limiting Magnitude
- Mv = 7.5
- Interface
- RS-422 / SpaceWire
- Supply Voltage
- 5 V / 12 V
- Power Consumption
- ~5 W
- Operating Temperature
- -30°C to +60°C
- Mass
- ~500 g
- Dimensions
- ~120 x 120 x 100 mm
- Radiation Tolerance
- 20 KRad
- TRL Level
- 8
- Star Catalog
- Embedded (>200,000 stars)
- Stray Light Rejection
- Sun exclusion >30°, Moon >15°
- Detector
- Large format CMOS APS
About
The ST400 is the high-performance star tracker from AAC Hyperion providing sub-arcsecond attitude accuracy for small satellites and CubeSats with demanding pointing requirements. It uses a large format detector and advanced star pattern recognition for faster acquisition and tracking. Suitable for precision Earth observation, telescope pointing, and high-accuracy science payloads. Provides quaternion attitude outputs via RS-422 or SpaceWire.
Documentation
Need the full ICD, test reports or a specific revision? Ask the supplier directly.
