Stellerian, Readying for First Demo, Seeks to Cut Out Ground Stations with Space Domain Awareness Software

Why It Matters

Moving image processing from ground to orbit cuts latency and hardware costs while dramatically improving real‑time situational awareness in an increasingly crowded LEO environment.

Key Takeaways

• ATLAS processes star‑tracker images to detect dim objects onboard.
• First on‑orbit demo slated for October on a partner satellite.
• Software can identify objects at signal‑to‑noise ratio ~1.5.
• Network of 20+ nodes could track LEO objects every 45 minutes.
• Stellerian plans to license ATLAS across diverse satellite constellations.

Pulse Analysis

Space situational awareness has traditionally depended on a network of ground stations that receive raw imagery, run computationally intensive algorithms, and then send commands back to orbiting assets. This ground‑centric model introduces latency, limits observation frequency, and requires expensive high‑sensitivity sensors to spot faint debris. As low‑Earth‑orbit traffic surges, operators are seeking faster, more scalable solutions that can keep pace with the growing risk of collisions and the need for autonomous formation flying.

Stellerian’s ATLAS software tackles the problem by repurposing existing star‑tracker hardware—already present on most small and medium satellites—as an optical sensor. Advanced image‑enhancement algorithms boost the effective brightness of objects, allowing detection at signal‑to‑noise ratios as low as 1.5, far below the typical 3‑5 threshold. The system processes data in seconds, delivering object catalogs directly to the satellite’s flight computer and only transmitting concise results to the ground. The upcoming October demo will validate these capabilities on a partner platform, comparing onboard detections with established ground‑based datasets.

If ATLAS proves reliable, it could spawn a new business model where software licenses enable any satellite, regardless of manufacturer, to become a node in a distributed space‑based tracking network. With as few as two dozen such nodes, Stellerian projects full‑coverage LEO monitoring within 45 minutes, a dramatic improvement over the current 12‑hour revisit time of single ground stations. This approach promises lower operational costs, continuous debris avoidance, and a foundation for future autonomous missions, positioning Stellerian as a potential disruptor in the emerging market for in‑orbit data processing.