NSS CubeSat Sun Sensor

NSS CubeSat Sun Sensor

$3300

The CubeSat sun sensor determines the spacecraft body angles with respect to the sun. The sensor is extremely small and light to minimise the demands on nano-spacecraft. The sensor achieves much higher measurement accuracy than traditional photodiode cosine sensors.

The sensor consists of a CMOS PSD detector sitting behind a small pin-hole with a field of view of +/- 57 degrees. The device produces four analogue voltages that are dependant on the incident angle of sunlight in the horizontal and vertical directions. Each sensor is supplied with a calibration algorithm that calculates the sun vector from these four voltages to an accuracy of +/-0.5 degrees.

Category:
  • Features
  • Performance
  • Product properties
  • Documents
  • Applications:
    • Accurate determination of sun-angle
    • Six sensors can achieve full sky coverage
    • Used in conjunction with a magnetometer for simple attitude control
    • Can be used as safe-mode sensors on gyro or star-mapper controlled systems
  • PSD architecture
  • Good accuracy
  • Wide field of view
  • Ultra Small size and low mass
  • Low power
  • Simple analogue interface
  • Field of view: 114°
  • Update Rate: >10 Hz (limited by ADC)
  • Accuracy: <0.5°
  • Interfaces:
    • Power Supply: 5V
    • I/F: 5 analogue channels, 9-way Nano-D connector
  • Mass: < 5 g
  • Power: < 10 mA
  • Size: 33mm x 11mm x 6mm
  • Environmental Characteristics
    • Operating temperature: -25°C to +50°C
    • 250 rms random, 1000g shock (Qualification levels)
    • 10krad total dose (component level)