HARDWARE / PRODUCTUpdated 25 Jul 2026

ST400

AAC Clyde Space
ST400

The ST400 is a high-performance star tracker designed for small satellite missions, offering precise attitude determination.

Key figurescomparable across the catalogue

Mass
0.5 kg
Power
5 W
Largest dimension
120 mm
TRL
8

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

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 a high-performance star tracker developed by AAC Hyperion, specifically designed for small satellite missions requiring accurate pointing. It is a fully autonomous star tracker that provides precise attitude determination. While the provided text does not detail specific features or configurations, it emphasizes its high performance, making it suitable for demanding small satellite applications.

Documentation

Need the full ICD, test reports or a specific revision? Ask the supplier directly.

Source: www.aac-clyde.space ↗

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