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The ST400 is the bigger brother of the successful ST200 star tracker. It uses the same proven electronics but uses a different opto-mechanics. The ST400 trades an increased resolution for being a little larger than the miniature ST200. Like ST200, the ST400 has been developed in cooperation with Hyperion Technologies B.V. The ST400 delivers a full and autonomous attitude solution and is your attitude sensing solution for missions with demanding accuracy requirements.

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Last updated: 2022-08-01



lead time
4 to 5 mo
3.7 to 5 V
650 mA
storage temperature
-30 to 50 C
operating temperature
-20 to 40 C
74 mm
91 mm
235 g
attitude knowledge error
5 arcsec
update rate
< 5 Hz
sun exclusion angle
35 deg


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