- Length: 4.5 m
- Diameter: 0.71 m
- Weight: 800 kg
- Working depth:
- IdefX: 2,850 m
- AsterX: 2,650 m
- Speed: 2–5 knots (3kts optimal)
- Navigation system: Inertial, Doppler
- Communications: Acoustic modem
- Positioning: LF & MF USBL
- Li-ion batteries: 50 V/16 kWh with maximum endurance of 16 hours
- Deployment: autonomous cradle Caliste
- Max section length: 100 km (depending on payload and depth)
- Navigation altitude when following the seabed: 10–100 m above the seabed
- Operating team: 3
- Multibeam echo sounder EM2040
- Sub-bottom profiler Echoes 5000 Ixblue/IFREMER
- Fluxgate magnetometer, 3 axes
- Current profiler, ADCP DI WH 300, 600 and 1200 kHz
- CTD sensor (conductivity, temperature and depth)
Examples of “user” payloads
- Gravimeter (UBO/ESGT/Mappem Geophysics)
- Spectrometer RAMAN + Fisheries echo sounder EK60 used as a plume detector (IFREMER)
- EH sensor (measuring redox potential)