Ephemera ephemera.space

Every eight hours, SpaceX publishes where each Starlink satellite is going, with its uncertainty — the only public feed of its kind. Each set is replaced by the next. Ephemera keeps the history.

The archive has been running since 30 August 2026. As of 31 August 2026 it holds four complete eight-hour cycles — every file hashed, each cycle bound into a Merkle root, anchored with OpenTimestamps, and sampled into the Wayback Machine. It exists because SpaceX publishes this feed openly.

This page is a placeholder. The archive ledger and a daily scoreboard — how well the public satellite catalogue can actually see the constellation — are under construction.