Federal Agency
  on Technical Regulating
  and Metrology

  FSUE "VNIIFTRI"



                                 B U L L E T I N E    A - 2630

                                            1 June 2026


            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  2026
  May   19      61179      +0,025630    +0,17346    +0,41310 
        20      61180      +0,025521    +0,17417    +0,41309 
        21      61181      +0,025230    +0,17479    +0,41268 
        22      61182      +0,024635    +0,17532    +0,41192 
        23      61183      +0,023769    +0,17628    +0,41106 
        24      61184      +0,022757    +0,17749    +0,41035 
        25      61185      +0,021689    +0,17858    +0,40988 

                          P R E D I C T I O N
  YEAR  2026
  June   1      61192      +0,01794     +0,1872     +0,4073   
         8      61199      +0,01833     +0,1898     +0,4062   
        15      61206      +0,01713     +0,1932     +0,3991   
        22      61213      +0,01759     +0,1977     +0,3925   
        29      61220      +0,02109     +0,1967     +0,3862   
  July   6      61227      +0,02512     +0,1977     +0,3801   
        13      61234      +0,02768     +0,1989     +0,3719   

     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