Federal Agency
  on Technical Regulating
  and Metrology

  FSUE "VNIIFTRI"



                                 B U L L E T I N E    A - 2644

                                            7 September 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
  Aug.  25      61277      +0,007078    +0,21418    +0,34458 
        26      61278      +0,006889    +0,21337    +0,34351 
        27      61279      +0,006498    +0,21301    +0,34239 
        28      61280      +0,005891    +0,21279    +0,34141 
        29      61281      +0,005086    +0,21251    +0,34057 
        30      61282      +0,004174    +0,21207    +0,33991 
        31      61283      +0,003263    +0,21153    +0,33948 

                          P R E D I C T I O N
  YEAR  2026
  Sep.   7      61290      +0,00055     +0,2074     +0,3372   
        14      61297      -0,00672     +0,2001     +0,3312   
        21      61304      -0,00986     +0,1920     +0,3271   
        28      61311      -0,01644     +0,1865     +0,3254   
  Oct.   5      61318      -0,02113     +0,1819     +0,3243   
        12      61325      -0,02922     +0,1747     +0,3250   
        19      61332      -0,03280     +0,1687     +0,3250   

     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