Budapest · Founded 2021

Space safety - supported by research

AdCoelum is a space research and consulting company founded by five scientists at Eötvös Loránd University. We connect peer-reviewed astrophysics and space science to practical questions in orbital environment, space weather, and radio-spectrum safety.

Orbits & debris

Orbital dynamics and tools for the motion of small bodies and space debris, in accordance with the tradition of ELTE Department of Astronomy’s long record in dynamical astronomy.

Space weather

Understanding solar activity, including magnetosphere behaviour, and impacts on space and ground technology — in line with the department’s work on the solar physics and space climate.

Attitude state

Attitude state reconstruction based on light curve or laser ranging measurements.

Products

Explore our productized workflows, including the Laser Ranging Request (LRR) client flow and live API client tools.

Open Products

Who we are

AdCoelum was founded in 2021; its founders are active researchers in astrophysics and space science. Together they cover the main activities in space safety: secure orbits, reliable awareness of the space environment.

Collision avoidance and conjunction assessment depend on orbital dynamics and on accurate orbit determination and maneuver design. The Department of Astronomy at ELTE has a strong international track record on dynamics of celestial bodies both artificial and natural. Dr. Zsolt Sándor (CEO) leads the planetary dynamics and planet formation group. Dr. Áron Süli (co-founder) is part of the same research environment. Dr. Andras Szell brings depth in large-scale dynamical simulation and in professional software development with more than 20 years experience.

Space-weather awareness and forecasting are a second pillar. The “Solar origins of space weather and space climate” group at ELTE works on the solar dynamo, eruption forecasting, and effects on the Earth environment. Dr. Emese Forgács-Dajka (co-founder) and colleagues contribute expertise on short-horizon solar activity — a key input to resilience planning for space and ground systems.

The third pillar is attitude state reconstruction, based on light curve or laser ranging measurements. Dr. Csaba Kiss (partner) has broad experience in reflection modeling, photometric analysis and laser physics, essential for accurate attitude determination.

Recent project: AdCoelum completed an ESA-contracted study (BILAR, 2024–2025) delivering validated software and methodology for multi-colour light curve–based spacecraft attitude reconstruction. Read more →