ARIETIS
Innalabs
ARIETIS is an ITAR-free, space-qualified, rad-hard 3-axis gyroscope designed for use as a primary gyro or coarse rate sensor in various Earth orbits and space missions. It provides inertial angle increments and rotation rates about three orthogonal axes.
Key figurescomparable across the catalogue
- Mass
- 3 kg
- Power
- 8 W
- Design life
- 16 years
Normalised to common units so this product can be compared with others in its category. The supplier's own wording is below.
As published by the supplier
- Measurement range
- [-3°/s; +3°/s] fine mode [-48°/s; +48°/s] coarse mode
- Switch-on response time
- ≤ 6s
- Arw
- ≤ 0.005°/√hr
- In-run bias stability
- ≤ 0.1°/hr
- Bias stability over 24hr (steady temperature)
- ≤ 1.5°/hr (1σ)
- Bias stability over 1hr (steady temperature)
- ≤ 0.3°/hr (1σ)
- Bias errors (over temperature range, ground, BOL)
- ≤ 5°/hr (3σ)
- Scale factor repeatability errors (all effects, EOL)
- ≤ 3000ppm (3σ)
- Eee components
- Hi-Rel class 1 EEE qualified to 50krad TID / 60MeV SEE
- Output
- Angle increments
- Data interface
- RS422 Optional analogue output Ground stimulus
- Reliability
- ≤ 500 FIT at 30°C
- Mass
- ~3 kg
- Power consumption
- 8 W
- Power interface
- 28 V (regulated or unregulated) redundant. Power on and power off command
- In-orbit calibration functionalities
- Yes
- Operating temperature
- Qualified to a temperature range of -30°C to +60°C
- Vibration profiles during launch
- 26.2 grms
- Design life
- up to 6 years on ground and 16 years in flight
About
ARIETIS is an ITAR-free, space-qualified, and radiation-hardened 3-axis gyroscope. Its primary application is as a main Inertial Reference Unit (IRU) or as a coarse rate sensor for Low Earth Orbit (LEO), Medium Earth Orbit (MEO), Geostationary Orbit (GEO), telecommunication, earth observation, and scientific missions. The unit utilizes class 1 EEE components and is developed and qualified according to European Space Agency standards (ECSS). ARIETIS has been selected for several notable missions, including PLATO, LSTM, and ARIEL.
This innovative 3-Axis Rad-Hard Gyro unit is unique in its use of European Field-Programmable Gate Array (FPGA) technology. With its High-Reliability class 1 components, ARIETIS offers high performance and reliability as a non-redundant 3-axis Gyros Unit. It provides precise inertial angle increment measurements and rotation rates around three orthogonal axes. Designed for a long operational life of 15+ years, ARIETIS is also developed and qualified to ESA (ECSS) standards.
In December 2016, InnaLabs® secured its first contract with the European Space Agency (ESA) to develop ARIETIS as a 3-axis Rad-Hard Rate Measurement Unit for science and space exploration. Beyond scientific missions, it also finds applications in the global commercial space market, including GEO, Telecom, and Navigation platforms. Specifically, ARIETIS is slated for use in ESA’s third medium-class mission, PLATO (PLAnetary Transits and Oscillations of stars), which aims to discover and investigate extrasolar planetary systems, focusing on terrestrial planets in habitable zones, and to study stellar seismic activity. First contracts for ARIETIS were signed in 2021, with flight models shipped in 2023. Additional product specifications, outline drawings, block diagrams, and test data are available upon request.
Documentation
No public datasheet yet — request the datasheet / ICD from the supplier.