The Orbit Orchestra
Above us, unseen, thousands of objects trace their silent paths around the Earth. Some were launched with purpose. Some have long outlived theirs. The Orbit Orchestra does not listen to them directly. Instead, it follows the mathematics of their orbits, calculating where they should be now. From those predictions emerges a kind of slow mechanical music: the orbital choreography of everything we have placed in the sky.
Orbital data: KeepTrack API · propagation via satellite.js (SGP4)