Federal Agency
  on Technical Regulating
  and Metrology

  FSUE "VNIIFTRI"



                                 B U L L E T I N E    A - 2577

                                           26 May 2025


            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  2025
  May   13      60808      +0,028541    +0,09808    +0,42675 
        14      60809      +0,028770    +0,09909    +0,42773 
        15      60810      +0,029120    +0,10011    +0,42880 
        16      60811      +0,029559    +0,10082    +0,42987 
        17      60812      +0,029962    +0,10121    +0,43079 
        18      60813      +0,030301    +0,10186    +0,43142 
        19      60814      +0,030507    +0,10283    +0,43173 

                          P R E D I C T I O N
  YEAR  2025
  May   26      60821      +0,02774     +0,1103     +0,4349   
  June   2      60828      +0,03006     +0,1197     +0,4383   
         9      60835      +0,03136     +0,1280     +0,4406   
        16      60842      +0,03711     +0,1375     +0,4429   
        23      60849      +0,03838     +0,1507     +0,4447   
        30      60856      +0,04379     +0,1603     +0,4444   
  July   7      60863      +0,04790     +0,1731     +0,4451   

     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