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.
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  










Remove tidal variations1


ΔLOD / date 2
Δω3 / date 3




Starting date Ending date
Year
Month
Day
Year
Month
Day
    



INTERACTIVE PLOT FOR EOP C04  




Dimension du graphe :
X


cm

Remove tidal variations1


ΔLOD / date 2
Δω3 / date 3


Starting date Ending date
Year
Month
Day
Year
Month
Day
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