Federal Agency
  on Technical Regulating
  and Metrology

  FSUE "VNIIFTRI"



                                 B U L L E T I N E    A - 2581

                                           23 June 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
  June  10      60836      +0,030035    +0,12628    +0,44206 
        11      60837      +0,030845    +0,12770    +0,44259 
        12      60838      +0,031734    +0,12918    +0,44285 
        13      60839      +0,032716    +0,13087    +0,44284 
        14      60840      +0,033587    +0,13282    +0,44267 
        15      60841      +0,034267    +0,13495    +0,44250 
        16      60842      +0,034773    +0,13714    +0,44262 

                          P R E D I C T I O N
  YEAR  2025
  June  23      60849      +0,03577     +0,1506     +0,4425   
        30      60856      +0,04081     +0,1608     +0,4422   
  July   7      60863      +0,04442     +0,1686     +0,4400   
        14      60870      +0,05067     +0,1726     +0,4357   
        21      60877      +0,05405     +0,1784     +0,4313   
        28      60884      +0,06052     +0,1855     +0,4258   
  Aug.   4      60891      +0,06645     +0,1904     +0,4192   

     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