STELION Geolocation (STELION-SGS) is an advanced optical sensor that delivers autonomous geolocation and orientation during nighttime operations. Combining multispectral imaging with integrated navigation capabilities, it calculates attitude and geographical position using stellar objects and known time and date, providing an independent positioning input when GNSS is unavailable or compromised.
The system delivers geolocation accuracy of less than 500 m, depending on the INS, and provides degraded GPS detection capability. Its celestial references offer an alternative to satellite navigation signals affected by jamming or spoofing, helping maintain navigation in contested environments.
STELION-SGS’ plug-and-play architecture simplifies integration into UAV and autonomous vehicle platforms, with no external electronics required. Weighing less than 360 g and consuming less than 3 W, it is ideal for SWaP-limited designs. Prototype units provide quaternion outputs, and NMEA over RS-422 is specified for production units.
Specifications:
| Weight | <360 g |
| Power Supply | 5 VDC |
| Power Consumption | <3 W |
| Geolocation Accuracy | <500 m, depending on INS |
| Outputs and Interfaces | Quaternion outputs: prototype units NMEA over RS-422: production units |




