Federal Agency
  on Technical Regulating
  and Metrology

  FSUE "VNIIFTRI"



                                 B U L L E T I N E    A - 2365

                                            3 May 2021


            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  2021
  Apr.  20      59324      -0,177798    +0,09733    +0,42740 
        21      59325      -0,177826    +0,09832    +0,42870 
        22      59326      -0,178036    +0,09905    +0,42990 
        23      59327      -0,178514    +0,09968    +0,43089 
        24      59328      -0,179153    +0,10004    +0,43178 
        25      59329      -0,179967    +0,10026    +0,43253 
        26      59330      -0,180890    +0,10067    +0,43310 

                          P R E D I C T I O N
  YEAR  2021
  May    3      59337      -0,18303     +0,1058     +0,4372   
        10      59344      -0,18532     +0,1160     +0,4419   
        17      59351      -0,18388     +0,1203     +0,4422   
        24      59358      -0,18494     +0,1279     +0,4417   
        31      59365      -0,18256     +0,1393     +0,4367   
  June   7      59372      -0,18033     +0,1503     +0,4361   
        14      59379      -0,17404     +0,1599     +0,4351   

     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