eopc01.iau2000.1846-now eng dataset IERS Earth Orientation Centre services.iers@obspm.fr resourceProvider 2026-03-01 http://hpiers.obspm.fr/eoppc/eop/eopc01/eopc01.iau2000.1846-now EOP C01 series of the Earth orientation parameters (1846-2026) IAU 2000 EOP C01 IAU2000 (1846-2026) 2026-03-01 creation IERS Earth Orientation Centre services.iers@obspm.fr resourceProvider EOP(IERS) C 01 is a series of the Earth Orientation Parameters given in the 1997 IERS system at 0.1 year interval (1846 - 1889) and 0.05 year interval (1890 - now). It is regularly recomputed to take advantage on one hand of the improvement of the various individual contributions and in the other hand of the refinement of the analyses procedures. This series is the basis of the IERS system. onGoing IERS Earth Orientation Centre services.iers@obspm.fr resourceProvider irregular EOP, Long term series, C01, 1846-2026 eng geoscientificInformation product category: EOP; product subcategory: LONG_TERM; product name: EOP_C01 1846-01-01 2026-02-24 documentation: http://hpiers.obspm.fr/eoppc/eop/eopc01/EOPC01.GUIDE; data points: 3164; time interval of data: 0.1 years [1846-1889] 0.05 years [1890-now]; accuracy: min max sx -0.000733 0.000417 sy 0.000013 0.157870 sut1 0.0000000 0.1643200 sdx 0.000001 99.990000 sdy 0.000003 0.002746 ; data descprition: MJD, PM-X["], PM-Y["], UT1-TAI[s], DX["], DY["], X-ERR["], Y-ERR["], UT1-ERR[s], DX-ERR["], DY-ERR["], LOD[s/d], LOD-ERR[s/d]; published by: IERS Earth Orientation Centre; reference: Vondrak J., Ron C., Pesek I., Cepek A., 1995, Astron. and Astrophys. 297, 899-906. --- IERS Annual reports ; Available on http://www.iers.org/products : Dataset-files in .xml, .html and .csv format ASCII unknown IERS Earth Orientation Centre services.iers@obspm.fr resourceProvider http://hpiers.obspm.fr/eoppc/eop/eopc01/eopc01.iau2000.1846-now dataset