Federal Agency
  on Technical Regulating
  and Metrology

  FSUE "VNIIFTRI"



                                 B U L L E T I N E    A - 2588

                                           11 August 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
  July  29      60885      +0,061473    +0,20414    +0,42967 
        30      60886      +0,061570    +0,20628    +0,42889 
        31      60887      +0,061712    +0,20845    +0,42793 
  Aug.   1      60888      +0,062132    +0,21040    +0,42709 
         2      60889      +0,062796    +0,21199    +0,42621 
         3      60890      +0,063690    +0,21306    +0,42494 
         4      60891      +0,064762    +0,21378    +0,42377 

                          P R E D I C T I O N
  YEAR  2025
  Aug.  11      60898      +0,07088     +0,2173     +0,4157   
        18      60905      +0,07164     +0,2261     +0,4085   
        25      60912      +0,07446     +0,2287     +0,4021   
  Sep.   1      60919      +0,07851     +0,2340     +0,3946   
         8      60926      +0,08334     +0,2350     +0,3864   
        15      60933      +0,08622     +0,2350     +0,3771   
        22      60940      +0,08913     +0,2324     +0,3655   

     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