Satellites and subsystems > Attitude > Attitude sensors > Star trackers > Sagitta Star Tracker
Key highlights
The arcsec Sagitta star tracker offers arc second range pointing accuracy to CubeSats. The custom algorithms are optimized for accuracy, robustness and low computational cost. The star tracker has a built-in baffle to reduce the effect of stray light. The system is compact and easy to interface in CubeSats and large satellites.
Key features:
- Tracks stars up to magnitude 6
- Tracks up to 32 stars
- Lost-in-space availability: >99% of the night sky
- Baffle sun rejection angle: 40 deg
- Lens is radiation shielded
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Last updated: 2024-07-03
Technical specs
mass
270 g
field of view
25.4 deg
update rate
10 Hz
width
50 mm
length
95 mm
height
45 mm
voltage
5 V
attitude knowledge about boresight
10 arcsec (1 sigma)
attitude knowledge cross boresight
2 arcsec (1 sigma)
data interface
RS485
nominal power consumption
~1300 mW
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