Satellites and subsystems > Attitude > Attitude sensors > Star trackers > ST-16RT2 Star Tracker
Key highlights
The Rocket Lab ST-16RT2 is a star tracker designed for space applications.
It has the capability to operate in the Low Earth Orbit (LEO) for 13 years and in the Geosynchronous Equatorial Orbit (GEO) for 9 years.
The ST-16RT2 provides attitude quaternion and angular rates at 2 Hz with zero initial acquisition time and has an option for 5Hz operation. It consists of a full-custom lens with 16 mm f/1.6 4-element glass, specially designed for shock and vacuum.
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Last updated: 2023-04-26
ST-16RT2 Star Tracker
Technical specs
mass
243 g (large baffle); 182 g (small baffle)
sun exclusion angle
22 deg (large baffle); 34 deg (small baffle)
radiation tolerance
18 krad
mechanical vibration
26.43 gRMS (large baffle); 27.05 gRMS (small baffle)
survival temperature
-40 to 88 C
operating temperature
-40 to 48 C
peak power
1 W
average power
< 0.5 W
supply voltage
9 to 34 V
data interface
RS485
update rate
< 5 Hz
slew rate
< 3 deg s^-1
attitude knowledge about boresight
55 arcsec
attitude knowledge cross boresight
5 arcsec
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