Fine Sun or Earth Sensor

CubeSense are CMOS-imager based Sun and Earth sensors with a wide FOV, low power usage and high accuracy. CubeSense is available in two different formats, one being a PC104 sized board with two sensor heads featuring full redundancy on memory, and the other being a highly compact single sensor head with integrated electronics. 

These sensors provide Sun/Earth measurements with <0.2° (3σ) accuracy over the entire FOV. The sun sensors are completely immune to albedo effects, making them highly robust and versatile. All sensors are calibrated in our state-of-the-art dark, clean, optics calibration room, using a sun-simulator and highly accurate rotation stage. CubeSense has flight heritage for a wide variety of missions and orbits.



  • The PC104-sized board conforms to the standard CubeSat form factor and is compatible with a wide range of available CubeSat subsystems.
  • Supported communication busses included UART and I2C.
  • Bus and power locations on the PC104 header are configurable to make CubeSense compatible with most CubeSat suppliers.

High-Resolution Image Sensors

  • We utilize a high resolution 1.3 megapixel imager.
  • The imger is also perfect to capture quick grayscale images of Earth.

Accurate Earth and Sun Detection

  • Each CubeSense sensor is individually calibrated using an accurate calibration process in our state-of-the-art dark, clean, optics room with highly accurate rotation stage.
  • Our Sun and Earth sensing algorithms have been refined to ensure robust performance even in non-ideal situations.

Specifications Summary


CubeSense  CubeSense S CubeSense N
CubeSpace Components CubeSense ADCS ADAC
Mass 80g 30g 30g
Operating Temperature -20°C to 70°C -20°C to 70°C -20°C to 70°C
Vibration 14g RMS 14g RMS 14g RMS
Radiation 24kRad 24kRad 24kRad
Supply Voltage 3V3 3V3 3V3
Average Power  150mW 100mW 100mW
Peak Power 360mW 200mW 200mW
Communications I2C/UART I2C/UART I2C/UART
Accuracy (3σ) <0.2° <0.2° <0.2°
Update Rate 1Hz 2Hz 2Hz
FOV ~ 180° ~ 180° ~ 180°