EOP COMBINED SERIES

EARTH ORIENTATION PARAMETERS COMBINED SERIES

Thereafter EOP combined series produced by the EOP-PC from EOP series achieved trough a specific technique.

EOP 05 C04 (x,y), UT1-UTC, LOD, (dPsi,dEps) / (dX,dY)	Final values for the period extending to 30 days back with respect to now. The last 30 days are preliminary values. Interactive selection and plots of C04 Interactive Analysis Solution from 1962 until the current week : Daily EOP combined series C04 05 (recomputed from 1984 according to improved algorithm), fully consistent with ITRF 2005 and updated two times per week - 2 versions : Celestial Pole offsets (dPsi,dEps) referred to the precession-nutation model IAU 1980 Celestial Pole offsets (dX,dY) referred to the precession-nutation model IAU 2000 Yearly series since 1962 : Smoothed values of EOP at 1-day intervals Currrent year / precession-nutation model IAU 1980 Currrent year / precession-nutation model IAU 2000 Graphics VLBI, GPS, SLR operational series compared to C04 for the passed 90 days / bias & standard deviation Plot of the polar motion 2004-current week with 30 days prediction (up-dated two times per week) What is new : Algorithm has been totally revisited Estimates of formal errors on EOP parameters From 1994 LOD is computed from GPS and SLR data, and constrained by UT1 VLBI Much better agreement with VLBI series for Celestial Pole offsets and UT1 New format more user friendly Polar motion is consistent with International Reference Frame (bias became very low). All suggestions / comments are welcome ! Technical note
EOP C01 (x,y), UT1-TAI, ( dPsi , dEps ) & associated accuracy	Interactive selection and plots of C01 series Interactive analysis of C01 series 2 series since 1846 : normal values of polar motion at 0.05 year intervals guide : Guide contains information on eopc01. N.B.: no value for UT1-TAI before 1962
EOP C03 (x,y), UT1-UTC & associated accuracy	Series since 1962 until 2003 : normal values of EOP at 1-day intervals. This series is discontinued - guide : Guide contains information on eopc03.
EOP C02 (x,y), UT1-UTC, ( dPsi , dEps ) & associated accuracy	Yearly series since 1962 until 2007 : normal values of EOP at 5-day intervals guide : Guide contains information on eopc02.
EOP GPS (x,y), UT1-UTC, LOD & associated accuracy	Yearly series GPS :IERS/EOP-PC GPS combined solution - at 1-day interval (12h UT). Discontinued in 2007 guide :Guide contains information on eopgps