Federal Agency
  on Technical Regulating
  and Metrology

  FSUE "VNIIFTRI"



                                 B U L L E T I N E    A - 2573

                                           28 April 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
  Apr.  15      60780      +0,033331    +0,06926    +0,39721 
        16      60781      +0,033306    +0,06986    +0,39834 
        17      60782      +0,033462    +0,07052    +0,39930 
        18      60783      +0,033715    +0,07141    +0,40047 
        19      60784      +0,033996    +0,07239    +0,40208 
        20      60785      +0,034254    +0,07338    +0,40381 
        21      60786      +0,034399    +0,07485    +0,40520 

                          P R E D I C T I O N
  YEAR  2025
  Apr.  28      60793      +0,02968     +0,0846     +0,4133   
  May    5      60800      +0,02972     +0,0915     +0,4208   
        12      60807      +0,02753     +0,1028     +0,4296   
        19      60814      +0,03063     +0,1109     +0,4380   
        26      60821      +0,02789     +0,1173     +0,4445   
  June   2      60828      +0,03048     +0,1241     +0,4516   
         9      60835      +0,03189     +0,1313     +0,4587   

     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