Satellites and subsystems > Attitude > Attitude sensors > Star trackers > Mark-3 Star Sensor
Key highlights
Antrix's Star Sensor system provides attitude information for spacecraft pointing and control. The Star Sensor consists of optics, detector, embedded processor-based processing electronics, memory, and power circuitry. A baffle is used to eliminate unwanted stay-light entering the optics.
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Last updated: 2018-07-13
Mark-3 Star Sensor
Technical specs
power consumption
24 W APU + 1 OIU (with cooler)
14 W APU + 1 OIU (without cooler)
14 W APU + 1 OIU (without cooler)
lifetime
15 yr
height
120 mm
width
270 mm
length
260 mm
mass
4.25 kg (APU)
mechanical shock
1000 g
acceptance temperature
-10 to 50 C
attitude update rate
8 Hz
attitude knowledge about boresight
40 arcsec
attitude knowledge cross boresight
< 10 arcsec
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