Federal Agency
  on Technical Regulating
  and Metrology

  FSUE "VNIIFTRI"



                                 B U L L E T I N E    A - 2191

                                            1 January 2018


            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.  19      58106      +0,227398    +0,07895    +0,23930 
        20      58107      +0,226885    +0,07613    +0,23934 
        21      58108      +0,226357    +0,07401    +0,23898 
        22      58109      +0,225796    +0,07229    +0,23872 
        23      58110      +0,225168    +0,07097    +0,23886 
        24      58111      +0,224418    +0,06981    +0,23941 
        25      58112      +0,223526    +0,06882    +0,24002 

                          P R E D I C T I O N
  YEAR  2018
  Jan.   1      58119      +0,21630     +0,0625     +0,2452   
         8      58126      +0,20923     +0,0459     +0,2506   
        15      58133      +0,20268     +0,0316     +0,2620   
        22      58140      +0,19722     +0,0181     +0,2695   
        29      58147      +0,19045     +0,0072     +0,2817   
  Feb.   5      58154      +0,18298     -0,0035     +0,2930   
        12      58161      +0,17669     -0,0088     +0,3075   

     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