The "Bulletin A" and "Bulletin B" series used here are concatenations of weekly/monthly values for illustrative purposes only.
   Please note that these are not official IERS series, instead one of the finals series or C04 should be used.

   Select parameter:    Show error bars:
   Value range of vertical axis from:       to       
   Range of date axis from:       to          (Date Format YYYY-MM-DD or YYYY)