ASTRIX 1090 Inertial Measurement / Accelerometer Unit
Airbus Defence and Space
Three-axis fibre-optic inertial unit from the ASTRIX 1000 series offering low angular random walk and optional accelerometer channels for navigation.
Technical specifications
- Angular random walk
- <0.005°/√h
- Bias stability
- <0.01°/h
- Configuration
- Optional accelerometer channels for full inertial navigation
- Flight heritage
- 3+ million flight hours
- Mass
- 4.5 kg
- Dimensions
- ø 263 x h 192 mm
- Power
- 13.5 W
- Operating temperature
- -25…+60 °C
- Supply voltage
- 22-50 V
- Lifetime
- 15 years
- Interface
- 1553, RS422
- Start-up time
- 3 s
- Linear motion measurement range
- ± 0.1 g or ±1.1 g
- Linear motion measurement range (2)
- 1.1 g or +20 g
- Accelerometer scale factor angular resolution
- 5 µm/s / LSB
- Accelerometer scale factor linearity - asymmetry 3 σ
- 50 or 300 ppm
- Accelerometer scale factor thermal sensitivity (over 15°C) 3
- < 200 ppm
- Accelerometer bias stability over 1 hour
- 3 or 20 µg
- Accelerometer bias thermal sensitivity (over 15°C)
- 200 µg
- Accelerometer bias repeatability after launch environment
- 150 µg
- Velocity Random Noise 1σ
- 5 10-6 g/√Hz
- Quantification Noise (at 100 Hz) 1 σ
- < 500 µg
About
The ASTRIX 1090 is a member of Airbus’ ASTRIX 1000 series of three-axis inertial detection systems, combining fibre-optic gyroscope sensing with an angular random walk below 0.005°/√h and bias stability below 0.01°/h. The unit can be configured with accelerometer channels to provide full inertial navigation capability, making it suitable for deep-space and high-precision AOCS applications.
ASTRIX 1090 shares the same rugged, HiRel-parts design philosophy as the rest of the ASTRIX family and has accumulated more than three million flight hours across multiple missions, giving programme teams a low-risk path to precision inertial sensing.
Documentation
Need the full ICD, test reports or a specific revision? Ask the supplier directly.