Federal Agency
  on Technical Regulating
  and Metrology

  FSUE "VNIIFTRI"



                                 B U L L E T I N E    A - 2634

                                           29 June 2026


            UNIVERSAL TIME AND TERRESTRIAL POLE MOTION


    Data         MJD      UT1(SU)-UTC    X(SU)      Y(SU)
    (0h UT)                   (s)         (")        (")

                       W E E K L Y    V A L U E S
  YEAR  2026
  June  16      61207      +0,012163    +0,19338    +0,40170 
        17      61208      +0,012313    +0,19398    +0,40114 
        18      61209      +0,012336    +0,19457    +0,40042 
        19      61210      +0,012253    +0,19547    +0,39977 
        20      61211      +0,011999    +0,19632    +0,39917 
        21      61212      +0,011648    +0,19710    +0,39840 
        22      61213      +0,011355    +0,19780    +0,39737 

                          P R E D I C T I O N
  YEAR  2026
  June  29      61220      +0,01394     +0,2048     +0,3913   
  July   6      61227      +0,01568     +0,2089     +0,3866   
        13      61234      +0,01451     +0,2082     +0,3806   
        20      61241      +0,01267     +0,2078     +0,3768   
        27      61248      +0,01470     +0,2065     +0,3698   
  Aug.   3      61255      +0,01689     +0,2028     +0,3646   
        10      61262      +0,01975     +0,1993     +0,3541   

     NOTATION:
MJD - Modifired Julian Day; MJD=JD-2400000,5;
UT1(SU), X(SU), Y(SU) - Universal Time UT1 and terrestrial pole motion
                        components, evaluated State Service for Time,
                        Frequency and EOP evaluation - SSTF;
UTC -  Universal Time Coordinated;
TA(SU) - Atomic Time scale of Russian Federation;
Difference UTC-TA(SU) = -33,17276 s (from 1 July 2015),
                        -34,17276 s (from 1 January 2017).


                                 Main Metrological Center
                                       of SSTF