open.space

An open‑source radar hardware & software initiative empowering the public to track, map, and interact with the rapidly growing landscape of Low‑Earth‑Orbit.

Open-Source Hardware

Expected to ship: March 2026.

Moon bounce radar on a tripod

Our first product is a low-cost software-defined radio phased array, engineered to transmit signals into space to near-Earth objects and receive them back with excellent sensitivity.

For $2499, you can connect with others on Earth—or even hear your own echo—by bouncing signals off the Moon.

The reconfigurable FPGA allows flexible transmission modes across any 40 MHz bandwidth in the C-band (4.9–6 GHz). Each circular-polarized antenna element is fully digital, supporting multiple simultaneous transmit and receive beams. The array’s highly directive design achieves an extraordinary EIRP of 4 megawatts!

With larger arrays, we can extend these capabilities to track even the smallest satellites and space debris from Earth. By combining measurements across multiple ground platforms, we will collaboratively build and maintain a state-of-the-art space-object catalogue.

Open Space Radar v1

Why Track LEO?

With tens of thousands of satellites launching this decade, near‑Earth space is busier than ever. Accurate, up‑to‑date tracking protects scientific observations, navigation services, and sustainable space operations. Open Space provides the tools and community to crowd‑source orbital awareness for all.

Visualization of satellite orbits around Earth

Join Our Constellation

Open Space is powered by a community of radio amateurs and aerospace professionals. Contribute code, assemble your own phased array, or share observation data to help build the most granular open LEO catalogue on the planet.

Long‑exposure composite showing satellite streaks across the Milky Way

Stay in the Loop

Be the first to find out when our hardware launches!