Satellites and subsystems > Attitude > Attitude sensors > Sun sensors > S3 (Smart Sun Sensor)
Key highlights
S3 (Smart Sun Sensor) is a two axes solar sensor based on an Active Pixel Sensor (APS) detector. S3 has been optimised for the commercial market of Earth Observation satellites and, thanks to the intrinsic radiation hardness of the detector, for the GEO Telecommunication spacecraft.
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Last updated: 2020-02-11
S3 (Smart Sun Sensor)
Technical specs
field of view
128° x 128° FOV (resizable)
field of view accuracy
<0.02° (2σ)
voltage
+5V ±10% pre regulated power bus
24 to 50V unregulated power bus
24 to 50V unregulated power bus
power consumption
<700mW for pre-regulated voltage
<1W for 50V unregulated bus
<1W for 50V unregulated bus
mass
< 330 g
length
112 mm
width
43 mm
height
12 mm
operating temperature
-25 to 60 C
storage temperature
-40 to 75 C
mechanical vibration
26.8 Grms
lifetime
> 15 years (in GEO)
radiation tolerance
100 krad
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