Federal Agency
  on Technical Regulating
  and Metrology

  FSUE "VNIIFTRI"



                                 B U L L E T I N E    A - 2458

                                           13 February 2023


            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  2023
  Jan.  31      59975      -0,015281    -0,00122    +0,24496 
  Feb.   1      59976      -0,014594    -0,00215    +0,24770 
         2      59977      -0,013834    -0,00344    +0,25017 
         3      59978      -0,013104    -0,00471    +0,25232 
         4      59979      -0,012417    -0,00630    +0,25411 
         5      59980      -0,011867    -0,00806    +0,25582 
         6      59981      -0,011458    -0,00983    +0,25763 

                          P R E D I C T I O N
  YEAR  2023
  Feb.  13      59988      -0,01201     -0,0218     +0,2716   
        20      59995      -0,00969     -0,0236     +0,2908   
        27      60002      -0,01070     -0,0296     +0,3063   
  Mar.   6      60009      -0,00765     -0,0346     +0,3258   
        13      60016      -0,01042     -0,0331     +0,3429   
        20      60023      -0,01046     -0,0357     +0,3599   
        27      60030      -0,01442     -0,0351     +0,3771   

     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