Supervised ETS cache of the IERS Earth Orientation Parameters.

Started with the application, it parses finals2000A.all once and serves per-day rows to the UT1 and Earth-rotation code. Each row carries the Modified Julian Date, polar motion x/y (arcseconds), UT1-UTC (seconds), length-of-day, and the dX/dY nutation offsets (milliarcseconds).

The file is ~6 MB of plain ASCII covering roughly 20,000 days and occupies under 1 MB in ETS once parsed. IERS republishes it weekly; refresh it whenever you need current or predicted UT1 values.

Run mix eph.download_kernels to fetch finals2000A.all.