Federal Agency
  on Technical Regulating
  and Metrology

  FSUE "VNIIFTRI"



                                 B U L L E T I N E    A - 2585

                                           21 July 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   8      60864      +0,049081    +0,17358    +0,43812 
         9      60865      +0,050402    +0,17548    +0,43823 
        10      60866      +0,051765    +0,17676    +0,43790 
        11      60867      +0,053059    +0,17780    +0,43741 
        12      60868      +0,054178    +0,17884    +0,43698 
        13      60869      +0,055020    +0,18025    +0,43656 
        14      60870      +0,055523    +0,18209    +0,43615 

                          P R E D I C T I O N
  YEAR  2025
  July  21      60877      +0,05821     +0,1953     +0,4331   
        28      60884      +0,06545     +0,2044     +0,4290   
  Aug.   4      60891      +0,07233     +0,2128     +0,4228   
        11      60898      +0,08045     +0,2189     +0,4137   
        18      60905      +0,08415     +0,2253     +0,4050   
        25      60912      +0,08906     +0,2279     +0,3970   
  Sep.   1      60919      +0,09310     +0,2272     +0,3878   

     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