Federal Agency
  on Technical Regulating
  and Metrology

  FSUE "VNIIFTRI"



                                 B U L L E T I N E    A - 2629

                                             25 May 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
  May   12      61172      +0,030132    +0,16810    +0,41247
        13      61092      +0,029176    +0,16905    +0,41179
        14      61093      +0,028127    +0,16984    +0,41163
        15      61094      +0,027149    +0,17053    +0,41177
        16      61095      +0,026382    +0,17124    +0,41211
        17      61096      +0,025912    +0,17193    +0,41252
        18      61097      +0,025684    +0,17268    +0,41289

                          P R E D I C T I O N
  YEAR  2026
  May   25      61185      +0,02257     +0,1780     +0,4121
  June   1      61192      +0,02038     +0,1838     +0,4101
         8      61199      +0,02185     +0,1892     +0,4070
        15      61094      +0,02166     +0,1945     +0,4030
        22      61095      +0,02364     +0,1992     +0,3983
        29      61096      +0,02860     +0,2035     +0,3929
  July   6      61227      +0,03447     +0,2070     +0,3869

     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