Federal Agency
  on Technical Regulating
  and Metrology

  FSUE "VNIIFTRI"



                                 B U L L E T I N E    A - 2583

                                            7 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
  June  24      60850      +0,036832    +0,15034    +0,44154 
        25      60851      +0,037963    +0,15186    +0,44112 
        26      60852      +0,039154    +0,15337    +0,44071 
        27      60853      +0,040370    +0,15489    +0,44043 
        28      60854      +0,041378    +0,15663    +0,44025 
        29      60855      +0,042190    +0,15861    +0,44017 
        30      60856      +0,042852    +0,16048    +0,44013 

                          P R E D I C T I O N
  YEAR  2025
  July   7      60863      +0,04861     +0,1725     +0,4381   
        14      60870      +0,05711     +0,1826     +0,4329   
        21      60877      +0,06062     +0,1934     +0,4279   
        28      60884      +0,06694     +0,2010     +0,4232   
  Aug.   4      60891      +0,07196     +0,2055     +0,4167   
        11      60898      +0,07786     +0,2057     +0,4084   
        18      60905      +0,08143     +0,2071     +0,4003   

     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