IERS EOP 20 C04 Daily Earth Orientation Parameters, 1962 to 2025
cra:eop-c04-daily-1962-202523,136 records13 columnsv1.0 · issued 2026-07-21
01Description
The full modern Earth orientation record at daily resolution: polar motion (x, y), UT1-UTC, excess length of day, celestial pole offsets, and polar motion rates, with formal uncertainties, from the IERS EOP 20 C04 combined series consistent with ITRF 2020. This is the reference series for contemporary rotation analysis.
02Package Contents
| Data file (CSV) | The cleaned series, one record per row |
| README.md | Source, terms, exact cleaning steps, column definitions, limitations, citation |
| Preparation script | Reproduces the CSV mechanically from the named source file(s) |
| CHECKSUMS.txt | SHA-256 for every file in the package |
Dataset Recordcra:eop-c04-daily-1962-2025
Series
Earth Orientation
Coverage
1962-01-01 to 2025-05-05 (snapshot at issue)
Resolution
Daily (0h UTC)
Extent
23,136 records × 13 columns
Version
v1.0 · issued 2026-07-21
Source
IERS EOP 20 C04 (ITRF 2020)
Package
cra_eop_c04_daily_1962_2025_v1.0.zip · 718 KB
Data file SHA-256
2a1a4b0a8ae2c6dd48a5b2f9ad3bb95d60e6147b79860e56e73c6957935b86a2
03Delivery
Resolving member access.