Celestial-Inertial Precision Pointing System


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Features & Benefits

  • Combines the accuracy of a celestial solution with the flexibility and tracking of an INS
  • System can easily incorporate additional sensors such as a magnetometer into the solution
  • High accurate azimuth recall maintained by the INS allows for use during celestial occlusion (Reference Target mode)
  • Non-magnetic
  • Continuous, real-time azimuth
  • Full attitude output (pitch, roll, azimuth)
  • Uses a System-on-a-chip processor, giving it significant processing power with lower power consumption and low heat dissipation


Performance Specs

Inertial Sensing / Main Processing

  • 3-axis accelerometers / angular rates and magnetometer (MEMS technology)
  • Integrated-solution processor
  • High-rate data (50 Hz)

Celestial Object Processing

  • Camera image processing
  • Azimuth determination
  • Low-rate data

Integrated inertial / celestial capability

  • MEMS technology inertial sensing
  • Azimuth aiding from the celestial-object subsystem
  • Optimal sensor fusion processing (Kalman-filter implementation)

Azimuth Accuracy

  • 2 mil (1σ)


  • Peak power during celestial determination: < 2 W

Physical Specs

Size Integration into a host unit
The processor board is 6.6 x 4.8 x 1.5 cm
(2.6 x 1.9 x 0.6 inches)
Weight < 100 g


Power < 2 W (peak)
< 0.3 W (standby)

Typical System

Main Components

Please contact Rockwell Collins for additional information on this product.

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