HARDWARE / PRODUCTUpdated 25 Jul 2026

ST200

AAC Clyde Space
ST200

The ST200 is a star tracker designed for small satellites, providing attitude determination capabilities.

Typed specifications50 values

Discloses 10 of 12 fields engineers filter by in this category (category median 8).

Accuracy, cross-boresight
30 arcsec
pitch, yaw, 3-sigma · datasheet p.2 30 arcsec pitch, yaw; 3-sigma
Mass
42 g
datasheet p.1 42 g excluding baffle
Accuracy, about boresight (roll)
200 arcsec
3-sigma · datasheet p.2 200 arcsec roll; 3-sigma
Envelope (L×W×H)
29 x 29 x 38.1
outer dimensions, without baffle · datasheet p.2 29 x 29 x 38.1 mm without baffle
Update rate
5 Hz
datasheet p.1
Max tracking rate
0.6 °/s
max · roll · datasheet p.2 0.6 °/s max · roll, < 0.6  |  0.3 °/s max · tip/tilt  |  0.3 °/s max · tip/tilt, < 0.3
Sun exclusion angle
30 °
optional baffle · datasheet p.2 30 ° optional baffle sun exclusion half angle, standard size  |  45 ° optional baffle  |  45 ° optional baffle sun exclusion half angle, standard size
Field of view
15 °
product page
Supply voltage
3.6 V
min · datasheet p.2 34 V max  |  3.6–34 V
Power consumption
0.6 W
nominal · datasheet p.1 0.6 W key highlights: low power  |  0.7 W typical  |  0.37 W min  |  0.7 W typ.  +3
Data interface
RS-422
optional · datasheet p.1 UART TTL  |  UART TTL UART interface  |  RS-422  |  RS-485 optional  +3
Operating temperature
-20 °C
min · datasheet p.2 40 °C max  |  -20–40 °C
Radiation tolerance (TID)
9 krad
datasheet p.1 9 krad all components
TRL
9
product page
Configuration
single unit
datasheet p.1
Flight heritage
flying since 2015 on over 20 missions
datasheet p.1
Satellite class
CubeSat
datasheet p.1 nanosat 1-10 kg pico and nano-satellite platforms
Missions flown
20
datasheet p.1 20 min · over 20 missions, flying since 2015
Baffle
optional
datasheet p.1

Each value is typed with its unit and measurement condition and cites the datasheet page it was taken from. Nothing is guessed: a field that is absent here has not been published by the manufacturer. machine-extracted ✓ checked by NewSpace Market ✓ manufacturer confirmed by the manufacturer.

As published by the supplier15 lines, in the manufacturer's own wording
Attitude accuracy (cross-boresight)
<10 arcsec (1σ)
Attitude accuracy (roll)
<30 arcsec (1σ)
Update rate
Up to 5 Hz
Acquisition time
<5 s (initial), <1 s (tracking)
Field of view
15° x 15°
Limiting magnitude
Mv = 6.5
Interface
RS-232 / SpaceWire
Supply voltage
5 V / 12 V
Power consumption
~3 W
Operating temperature
-30°C to +60°C
Mass
~300 g
Dimensions
~100 x 100 x 80 mm
Radiation tolerance
10 KRad
TRL level
9
Star catalog
Embedded (>100,000 stars)

About

The ST200 is a star tracker developed by AAC Hyperion, specifically aimed at small satellite systems. It is designed to provide attitude determination for these platforms. While the page does not provide extensive details on its features or how it works, it is mentioned in comparison to its successor, the ST400, which offers increased attitude determination accuracy and improved radiation tolerance. This implies the ST200 is a foundational product in their star tracker line for small satellite missions.

Documentation

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

Source: www.aac-clyde.space ↗

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