Federal Agency
  on Technical Regulating
  and Metrology

  FSUE "VNIIFTRI"



                                 B U L L E T I N E    A - 2640

                                           10 August 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
  July  28      61249      +0,012194    +0,21924    +0,36721 
        29      61250      +0,012683    +0,21919    +0,36638 
        30      61251      +0,012949    +0,21961    +0,36574 
        31      61252      +0,012953    +0,22051    +0,36535 
  Aug.   1      61253      +0,012704    +0,22165    +0,36496 
         2      61254      +0,012268    +0,22250    +0,36460 
         3      61255      +0,011754    +0,22285    +0,36397 

                          P R E D I C T I O N
  YEAR  2026
  Aug.  10      61262      +0,01138     +0,2249     +0,3586   
        17      61269      +0,00903     +0,2249     +0,3553   
        24      61276      +0,01008     +0,2254     +0,3507   
        31      61283      +0,00658     +0,2211     +0,3444   
  Sep.   7      61290      +0,00373     +0,2189     +0,3407   
        14      61297      -0,00088     +0,2115     +0,3360   
        21      61304      +0,00015     +0,2063     +0,3311   

     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