SSOC-D60 2-Axis digital sun sensor

Flight heritage since 2009

SSOC-D60 2-Axis digital sun sensor


The Solar MEMS Sun Sensor on a Chip (SSoC) solution is based on MEMS fabrication processes to achieve highly integrated sensing structures for high accurate sun-tracking, positioning systems and attitude determination.

The SSOC-D60 device measures the incident angle of a sun ray on both axis. It includes a microprocessor that directly provides the sunlight incident angles and their derivatives without external calculations, via a digital interface. The device includes MEMS technology with flight heritage, electronic components that are space-grade, and a microprocessor included has been tested for the space environment and has flight heritage.

The high sensitivity is based on the geometrical dimensions of the design. The use of a metal shield and a cover glass minimizes the ageing of the device under high radiation levels. Every sensor is calibrated and characterized.

SSOC-D60 has flight heritage since 2009, with hundreds of flight models delivered for different missions.

ICD file

CAD file

Vendor: SolarMEMS
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Technical Specifications

Parameter Value Comments
Sensor type 2 axes
Performance Field of View ± 60° Cone shaped, performance field
Exclusion Field of View ± 75° It must be clear of obstacles or reflective surfaces (recommendation)
Accuracy 0.3° 3σ error
Sensitivity 0.05°
Calibration conditions: Tª = 5.00V, Radiation = 1366 W/m2 (AM0 standard)
Electrical Specifications
Parameter Value Comments
Supply voltage 5.00 V
Max current consumption 63 mA
Connector (Cable side) 222S20M16 From Nicomatic
Connector (Sensor side) 221T20F22 From Nicomatic
Mechanical Specifications
Parameter Value Comments
Dimensions (L x W x H) 50 x 30 x 12 mm 68 x 30 x 12.61 mm including mounting feet and connector
Weight 35.5 ± 0.2g
Mount holes Ø Ø3.2 x 2
Mount holes separation 60 mm
Mounting screws M3 Recommended M3 Allen screws A2-70 s/ UNE – EN-ISO 4762-2005
Recommended torque 1.1 – 1.4 Nm
Housing Aluminium 6082 Alodine 1200S (ECSS-Q-70-71)

Black anodized (ECSS-Q-ST-70-03C)

Thermal Specifications
Parameter Value Comments
Temperature range -40 to +85°C
Temperature value accuracy 1°C Internal thermistor
Filtering of signals
Parameter Value Comments
Sampling frequency 50 Hz
Butterworth filtering stage 3th order
Cutting frequency 1 Hz
Parameter Value Comments
Expected life time 3+ years