Federal Agency
  on Technical Regulating
  and Metrology

  FSUE "VNIIFTRI"



                                 B U L L E T I N E    A - 2190

                                           25 December 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
  Dec.  12      58099      +0,233695    +0,09776    +0,23597 
        13      58100      +0,232322    +0,09541    +0,23642 
        14      58101      +0,231127    +0,09296    +0,23688 
        15      58102      +0,230108    +0,09037    +0,23742 
        16      58103      +0,229249    +0,08763    +0,23794 
        17      58104      +0,228463    +0,08486    +0,23841 
        18      58105      +0,227821    +0,08196    +0,23887 

                          P R E D I C T I O N
  YEAR  2017/18
  Dec.  25      58112      +0,22316     +0,0619     +0,2423   
  Jan.   1      58119      +0,21399     +0,0461     +0,2504   
         8      58126      +0,20576     +0,0306     +0,2549   
        15      58133      +0,20059     +0,0173     +0,2642   
        22      58140      +0,19598     +0,0037     +0,2730   
        29      58147      +0,18792     -0,0046     +0,2853   
  Feb.   5      58154      +0,18019     -0,0111     +0,2974   

     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