Satellites and subsystems > Attitude > Attitude sensors > Star trackers > T3 Star Tracker for microsatellite
Key highlights
The Terma T3 Star Tracker is a highly compact device offering precise tracking capabilities and outstanding thermal stability, making it highly suited to smaller microsatellites with lifetimes in excess of 5 years.
This device is a streamlined variant of the T1 Star Tracker, featuring a reduced-size optical system and a computer processing unit constructed from highly dependable Commercial Off-The-Shelf (COTS) components.
The T3 Star Tracker includes an integrated processing unit that houses the star catalog and software algorithms essential for autonomous attitude determination and tracking.
Key features
High accuracy
Highly compact design with build in processing unit
Radiation-hardened aspherical optics
Built-in baffle with outstanding straylight attenuation
Excellent thermal stability
Mass 350 g
Survival Temperature (qualification limits) -35 °C to +70 °C
Flight heritage
With 25 years of experience in satellite star tracker technology, Terma has emerged as a pioneer in delivering reliable equipment. Our star trackers are known for their precision in navigational data, establishing them as trusted and essential tools in the space industry.
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Last updated: 2025-08-19
Technical specs
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