Product: EOP 20u24 C04 (IAU2000A, dPsi, dEps) 0hUTC - one file (1962-now)
EOP 20u24 C04 series for 1962 - now / 0hUTC / dPsi, dEps / IAU2000A - Version metadata

Combined Earth orientation parameter solution consistent with the International Terrestrial Reference Frame (ITRF) 2020-u2024

Features:

1) Contain daily values of 8 Earth orientation parameters with their formal errors:

- Pole coordinates x, y (")
- UT1 - UTC (s)
- Celestial pole offsets dPsi, dEps (")
- Pole coordinate rates xrt, yrt ("/day)
- Length of day offset LOD (s)

2) Download from https://hpiers.obspm.fr/iers/eop/eopc04/

version: eopc04.dPsi_dEps.1962-now: sampled values at 0hUT / dPsi, dEps IAU 2006/2000A

ASCII

4(i4),f10.2,2(f12.6),f12.7,2(f12.6),2(f12.6),f12.7,2(f12.6),f12.7,2(f12.6),2(f12.6),f12.7

General information: https://hpiers.obspm.fr/iers/eop/eopc04/readme
Information on updates: https://hpiers.obspm.fr/iers/eop/eopc04/updateC04.txt

EOP 20u24 C04 series for 1962 - now / 0hUTC / dPsi, dEps / IAU2000A

YR, MM, DD, HH, MJD, x("), y("), UT1-UTC(s), dPsi("), dEps("), xrt("), yrt("), LOD(s), x Er, y Er, UT1-UTC Er, dPsi Er, dEps Er, xrt Er, yrt Er, LOD Er

23383

1962-01-01

2026-01-07

1 day

-                       Min          Max      Average      Average (last 365 days)
sigma_X ["]         0.000031     0.030000     0.006223     0.000049
sigma_Y ["]         0.000029     0.030000     0.006198     0.000047
sigma_x_rate ["]    0.000052     0.014968     0.000304     0.000102
sigma_y_rate ["]    0.000053     0.006008     0.000304     0.000103
sigma_UT1-UTC [s]  0.0000028    0.0040747    0.0005638    0.0000354
sigma_LOD [s]      0.0000062    0.0014310    0.0003265    0.0000166
sigma_dPsi ["]        0.000028     0.038829     0.001304     0.001223
sigma_dEps ["]        0.000006     0.014691     0.000812     0.000483
						

EOP, Long term series, 20u24 C04, IAU 2006/2000A

daily

https://hpiers.obspm.fr/iers/eop/eopc04/

IERS Earth Orientation Centre

IERS Earth Orientation Centre

2026-02-06

services.iers@obspm.fr

onLine