Federal Agency
  on Technical Regulating
  and Metrology

  FSUE "VNIIFTRI"



                                 B U L L E T I N E    A - 2600

                                            3 November 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
  Oct.  21      60969      +0,093681    +0,19498    +0,32203 
        22      60970      +0,093485    +0,19333    +0,32233 
        23      60971      +0,093364    +0,19160    +0,32263 
        24      60972      +0,093346    +0,18972    +0,32276 
        25      60973      +0,093495    +0,18780    +0,32279 
        26      60974      +0,093753    +0,18600    +0,32260 
        27      60975      +0,094047    +0,18445    +0,32220 

                          P R E D I C T I O N
  YEAR  2025
  Nov.   3      60982      +0,09161     +0,1741     +0,3217   
        10      60989      +0,09045     +0,1605     +0,3242   
        17      60996      +0,09042     +0,1447     +0,3237   
        24      61003      +0,09315     +0,1294     +0,3215   
  Dec.   1      61010      +0,09173     +0,1159     +0,3165   
         8      61017      +0,09125     +0,1035     +0,3149   
        15      61024      +0,08877     +0,0900     +0,3130   

     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