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Twinkle is arcsec's smallest star tracker, allowing for multiple star trackers on the same satellite. It offers 3 arcsec (1σ) accuracy cross-boresight and can also be fitted with external baffles and extra coatings.
The Twinkle Star Tracker offers arcsecond range pointing accuracy to your CubeSat. The custom algorithms are optimized for accuracy, robustness and low computational cost. The star tracker is extremely compact and easy to interface in CubeSats and large satellites. Due to its small size, several can be mounted under different angles to improve the accuracy.
Features:
- Star tracking and attitude determination
- Partial image download capability
- Image histograms
- Fast lost-in-space algorithm
Performance:
- Cross-boresight accuracy: 3" (1σ)
- Around boresight accuracy: 30" (1σ)
- Tracks stars up to magnitude 7
- Tracks up to 64 stars
- Update rate of 10 Hz
- Field of view: 10.6°
- Autonomous calibration
Robustness:
- Lost-in-space availability: >99% of the night sky
- Discards vast majority of false star instances
- Autonomous detection and correction for outlier stars
- Radiation shielded lens
- Electronics are radiation tested
| Parameter | Value |
|---|---|
| Lead Time | 4 months |
| Interface | RS485 |
| Mass | 35 g |
| Voltage Supply | 5V |
| Nominal Power Consumption | 1000 mW |
| Cross boresight accuracy | 3" (1σ) |
| Around boresight accuracy | 30" (1σ) |
| Tracked Star Magnitude | up to Magnitude 7 |
| Total trackable stars | up to 64 stars |
| Update Rate | 10 Hz |
| Field of View | 10.6 degrees |
| Type | Document Name | Action & Size |
|---|---|---|
| No public documentation available. Please inquire for details. | ||
