Federal Agency
  on Technical Regulating
  and Metrology

  FSUE "VNIIFTRI"



                                 B U L L E T I N E    A - 2377

                                           26 July 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
  July  13      59408      -0,153869    +0,22925    +0,40558 
        14      59409      -0,153013    +0,23084    +0,40495 
        15      59410      -0,152401    +0,23239    +0,40399 
        16      59411      -0,151995    +0,23400    +0,40294 
        17      59412      -0,151757    +0,23555    +0,40203 
        18      59413      -0,151530    +0,23695    +0,40123 
        19      59414      -0,151191    +0,23837    +0,40006 

                          P R E D I C T I O N
  YEAR  2021
  July  26      59421      -0,14563     +0,2479     +0,3912   
  Aug.   2      59428      -0,14006     +0,2567     +0,3823   
         9      59435      -0,13002     +0,2652     +0,3720   
        16      59442      -0,12438     +0,2694     +0,3603   
        23      59449      -0,11749     +0,2699     +0,3496   
        30      59456      -0,11369     +0,2635     +0,3402   
  Sep.   6      59463      -0,10758     +0,2562     +0,3282   

     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