EOP C04 COMBINED SERIES

Interactive EOP selection | Interactive plot | Interactive Analysis | C04 - Individual series

Page updated on 2023, February 21

EOP Combined Series 20 C04 consistent with ITRF 2020, officially replacing former 14 C04 series since February 14 2023. Final values for the period extending to 30 days back with respect to now. Updates Daily values of C04 at 0hUTC from 1962 with Celestial Pole offsets (dX,dY) Daily values of C04 at 12hUTC from 1984 with Celestial Pole offsets (dX,dY) Daily values of C04 at 0hUTC from 1962 with Celestial Pole offsets (dPsi,dEps) Daily values of C04 at 12hUTC from 1984 with Celestial Pole offsets (dPsi,dEps) All versions 14 C04 consistent with ITRF14. All versions Graphics: VLBI, GPS, SLR & DORIS operational series compared to C04 for the passed 365 days. Bias & standard deviation Technical note

INTERACTIVE SEARCH FOR EOP C04

No date Civil date (year/month/day) Modified Julian date Besselian year (x,y) (mas) (dx/dt,dy/dt) (mas) Remove tidal variations1 UT1-UTC (ms) UT1-TAI (ms) ΔLOD / date 2 Δω3 / date 3 (dX,dY) UAI 2000 (mas) All EOP

Starting date Ending date Year 1962 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 Month 1 2 3 4 5 6 7 8 9 10 11 12 Day 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Year 1962 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 Month 1 2 3 4 5 6 7 8 9 10 11 12 Day 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31

INTERACTIVE PLOT FOR EOP C04

Modified Julian date Besselian year Civil date Dimension du graphe : X x / date y / date Polhody (x,-y) cm Remove tidal variations1 UT1-UTC / date UT1-TAI / date ΔLOD / date 2 Δω3 / date 3 dX UAI 2000 / date dY UAI 2000 / date

Starting date Ending date Year 1962 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 Month 1 2 3 4 5 6 7 8 9 10 11 12 Day 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Year 1962 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 Month 1 2 3 4 5 6 7 8 9 10 11 12 Day 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31

Label in french Label in english

1- Variations produced by the solid Earth zonal tides (model of the 2010 IERS Conventions) 2- Length of day refered to 86400 s TAI 3- Earth angular velocity refered to the nominal value of 72921151.467064 picorad/s