Federal Agency
  on Technical Regulating
  and Metrology

  FSUE "VNIIFTRI"



                                 B U L L E T I N E    A - 2172

                                           21 August 2017


            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  2017
  Aug.   8      57973      +0,345624    +0,21865    +0,39972 
         9      57974      +0,345272    +0,22019    +0,39813 
        10      57975      +0,344785    +0,22193    +0,39649 
        11      57976      +0,344149    +0,22346    +0,39480 
        12      57977      +0,343478    +0,22432    +0,39303 
        13      57978      +0,342814    +0,22494    +0,39123 
        14      57979      +0,342180    +0,22554    +0,38944 

                          P R E D I C T I O N
  YEAR  2017
  Aug.  21      57986      +0,33943     +0,2265     +0,3766   
        28      57993      +0,33423     +0,2315     +0,3648   
  Sep.   4      58000      +0,33106     +0,2324     +0,3510   
        11      58007      +0,32460     +0,2318     +0,3358   
        18      58014      +0,31934     +0,2280     +0,3210   
        25      58021      +0,31142     +0,2273     +0,3093   
  Oct.   2      58028      +0,30661     +0,2323     +0,2993   

     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