Satellites and subsystems > Attitude > Attitude sensors > Star trackers > ST400 Star Tracker
Key highlights
The ST400 is an autonomous star-sensing solution for demanding microsatellite missions. The ST400 has been jointly developed by Berlin Space Technologies and Hyperion Technologies. The device has space heritage and was qualified according to the highest standards. The design life in LEO is 5 years. Multiple ST-400s can be coupled to form a redundant configuration.
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Last updated: 2023-02-15
Technical specs
design life (LEO)
5 yr
maximum slew rate
1 deg/s (roll)
0.3 deg/s (pitch, yaw)
0.3 deg/s (pitch, yaw)
data interface
RS422
voltage
3.7 to 5 V
current
650 mA
storage temperature
-30 to 50 C
operating temperature
-20 to 40 C
diameter
74 mm
length
89 mm
mass
270 g
attitude knowledge error
5 arcsec
update rate
< 5 Hz
sun exclusion angle
35 deg
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