SSOC-A60 2-Axis analog sun sensor

Flight heritage since 2009

SSOC-A60 2-Axis analog sun sensor


Sun Sensor on a Chip (SSoC), is based on MEMS fabrication processes to achieve highly integrated sensing structures at low cost for high accurate sun-tracking and positioning systems. SSOC-A60 device measures the incident angle of a sun ray in both azimuth and elevation. The high sensitivity is based on geometrical dimensions of the design.
Every sensor is characterized and a look-up table is provided for its application. It included an internal thermistor for temperature compensation. The use of a metal shield and a cover glass in the objective minimizes the ageing of the device under high energy particle radiation.

Vendor: SolarMEMS
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  • Satellite attitude determination
  • Balloons and UAVs control
  • Accurate Sun position determination
  • Satellite solar panel positioning
  • Attitude control and failure alarm
  • Satellite positioning in specific trajectory points
  • Engineering model also available (4100€)


  • Qualification status: flight model
  • Random vibration: 10g @ 1 kHz
  • Mechanical shock: 50 to 3000g, 1 to 100 ms
  • Cumulative radiation dose: 300 kRad
  • LET threshold: 6 MeV/mg/cm2
  • Thermal cycling and vacuum tests
  • 2 orthogonal axes
  • Field of View: +/- 60 deg
  • Accuracy: <0.3 deg (3-Sigma)
  • Precision: <0.05 deg
  • 4 analog output channels: 0 to 10V
  • Dimensions: 30 x 30 x 12 mm
  • Mass: 25 g
  • Power supply: 5 to 12V
  • Operating temperature: -40 to +85 degC
  • Power consumption in Sun light: <36 mW
  • Power consumption in the dark: <12 mW