IERS Rapid Service / Prediction Center

U.S. Naval Observatory

Polar motion, UT1-UTC, and length of day values for last 90 days with dψ & dε using 1976 Precession/1980 Nutation Theory (with 90 days of predictions)

Polar motion, UT1-UTC, and length of day values for last 90 days with dX & dY using IAU2000A Nutation/Precession Theory (with 90 days of predictions)

Polar motion, UT1-UTC, and length of day values for last 90 days with dψ & dε using 1976 Precession/1980 Nutation Theory (with 15 days of predictions)

Polar motion, UT1-UTC, and length of day since 02 January 1973 with dψ & dε using 1976 Precession/1980 Nutation Theory updated daily (with 1 year of predictions)

Polar motion, UT1-UTC, and length of day since 02 January 1973 with dX & dY using IAU2000A Nutation/Precession Theory updated daily (with 1 year of predictions)

Format for "finals.daily" and "finals.daily.extended"

Format for "finals2000A.daily" and "finals2000A.daily.extended"

Format for "gpsrapid.daily"

MD5 checksums for Earth Orientation Parameters data files

SHA512 checksums for Earth Orientation Parameters data files