                                                              BULLETIN B 216
                                                                (IAU 2000)
                                                              31 january 2006     




==============================================================================
Following IAU Conventions 2000, IERS provides new products dX, dY, celestial 
pole offsets with respect to the new IAU2000A Precession-Nutation theory                                                                                                                                                                                .

The present Bulletin B version includes the celestial pole offsets dX, dY:

dX = X_obs - X_IAU2000A and dY = Y_obs - Y_IAU2000A

where

X_obs, Y_obs are the observed coordinates of the Celestial Intermediate
Pole (CIP) in the Geocentric Celestial Reference System, and

X_IAU2000A, Y_IAU2000A are the celestial pole coordinates provided by using
the IAU2000A Precession-Nutation theory.

The current Bulletin B including (dpsi,deps)_1980 will be maintained 
as long as necessary.

For more details refer to IERS Messages 38, on IAU 2000 Resolution Compliancy
Information.
==============================================================================




    Contents are described in the Explanatory Supplement available at
    http://hpiers.obspm.fr/eop-pc/
      
 1 - EARTH ORIENTATION PARAMETERS (IERS evaluation).
     The values in this section are samplings of section 2 given at five-day 
     intervals. 

    Date    MJD       x       y    UT1R-UTC      UT1R-TAI     dX      dY
  2005/06             "       "        s             s      0.001"   0.001"
   (0h UTC)
  
 Final Bulletin B values.
  
  DEC   5  53709   0.06645  0.39063 -0.648796  -32.648796    0.42   -0.24
  DEC  10  53714   0.06538  0.38970 -0.650520  -32.650520    0.17   -0.13
  DEC  15  53719   0.06416  0.38751 -0.652800  -32.652800    0.27   -0.18
  DEC  20  53724   0.06387  0.38904 -0.655712  -32.655712    0.45   -0.42
  DEC  25  53729   0.06066  0.38697 -0.658743  -32.658743    0.24   -0.48
  
  DEC  30  53734   0.05491  0.38468 -0.661412  -32.661412    0.24   -0.33
  JAN   4  53739   0.05018  0.38244  0.336786  -32.663214    0.28   -0.34
  
 Preliminary extension, to be updated weekly in Bulletin A and monthly
  in Bulletin B.
  
  JAN   9  53744   0.04951  0.38132  0.335329  -32.664671    0.14   -0.13
  JAN  14  53749   0.04867  0.38004  0.333783  -32.666217    0.16   -0.31
  JAN  19  53754   0.05071  0.38071  0.332304  -32.667696    0.00    0.00
  
  JAN  24  53759   0.05025  0.38016  0.330224  -32.669776    0.00    0.00
  JAN  29  53764   0.05110  0.38146  0.326243  -32.673757    0.00    0.00
  FEB   3  53769   0.05030  0.38124  0.322140  -32.677860    0.00    0.00
  FEB   8  53774   0.04790  0.37962  0.318150  -32.681850    0.00    0.00
  FEB  13  53779   0.04483  0.37748  0.314243  -32.685757    0.00    0.00
  
  FEB  18  53784   0.04141  0.37519  0.310276  -32.689724    0.00    0.00
  FEB  23  53789   0.03782  0.37288  0.306179  -32.693821    0.00    0.00
  FEB  28  53794   0.03415  0.37068  0.301914  -32.698086    0.00    0.00
  MAR   5  53799   0.03048  0.36860  0.297459  -32.702541    0.00    0.00
  MAR  10  53804   0.02685  0.36666  0.292835  -32.707165    0.00    0.00
  
  MAR  15  53809   0.02330  0.36488  0.288090  -32.711910    0.00    0.00
  MAR  20  53814   0.01986  0.36327  0.283222  -32.716778    0.00    0.00
  MAR  25  53819   0.01656  0.36181  0.278294  -32.721706    0.00    0.00
  MAR  30  53824   0.01341  0.36052  0.273334  -32.726666    0.00    0.00
                                                            
 Note. In UT1R, the effects of zonal tides with periods shorter than 35 days
 are removed ; UT1-UT1R (smaller than 0.0025s in absolute value) should be  
 added after quadratic interpolation of UT1R. Section 2 of this Bulletin gives 
 the daily interpolation of x, y, UT1, duration of day, dX, and dY.
  
                                                             IERS, B 216 (2)
 2 - SMOOTHED VALUES OF x, y, UT1, D, dX, dY (IERS EVALUATION)
 at one-day intervals. For smoothing characteristics, see Table2 in the
 explanatory supplement. The reference system is described in the 2004
 IERS Annual Report.
  2005/06    MJD       x        y     UT1-UTC UT1-UT1R   D    dX      dY
    (0 h UTC)          "        "        s       ms     ms  0.001"  0.001"
 DEC   5   53709  0.06645  0.39063 -0.647748  1.047   0.189   0.42  -0.24
 DEC   6   53710  0.06619  0.39079 -0.648017  1.143   0.401   0.38  -0.25
 DEC   7   53711  0.06619  0.39080 -0.648554  0.961   0.664   0.31  -0.24
 DEC   8   53712  0.06622  0.39062 -0.649325  0.524   0.876   0.25  -0.19
 DEC   9   53713  0.06603  0.39025 -0.650267 -0.077   0.978   0.20  -0.17
 DEC  10   53714  0.06538  0.38970 -0.651236 -0.716   0.946   0.17  -0.13
 DEC  11   53715  0.06435  0.38891 -0.652118 -1.261   0.832   0.18  -0.11
 DEC  12   53716  0.06347  0.38812 -0.652872 -1.608   0.674   0.22  -0.12
 DEC  13   53717  0.06313  0.38764 -0.653456 -1.700   0.467   0.25  -0.16
 DEC  14   53718  0.06343  0.38741 -0.653815 -1.534   0.238   0.26  -0.19
 DEC  15   53719  0.06416  0.38751 -0.653955 -1.155   0.081   0.27  -0.18
 DEC  16   53720  0.06476  0.38798 -0.654006 -0.643   0.026   0.33  -0.16
 DEC  17   53721  0.06504  0.38864 -0.654037 -0.091   0.044   0.42  -0.19
 DEC  18   53722  0.06515  0.38905 -0.654119  0.414   0.129   0.50  -0.31
 DEC  19   53723  0.06486  0.38918 -0.654313  0.804   0.274   0.51  -0.42
 DEC  20   53724  0.06387  0.38904 -0.654678  1.034   0.450   0.45  -0.42
 DEC  21   53725  0.06286  0.38836 -0.655214  1.089   0.653   0.38  -0.32
 DEC  22   53726  0.06238  0.38770 -0.655977  0.981   0.811   0.32  -0.24
 DEC  23   53727  0.06185  0.38737 -0.656822  0.741   0.887   0.27  -0.28
 DEC  24   53728  0.06126  0.38709 -0.657732  0.422   0.928   0.23  -0.41
 DEC  25   53729  0.06066  0.38697 -0.658656  0.087   0.911   0.24  -0.48
 DEC  26   53730  0.05955  0.38703 -0.659530 -0.194   0.822   0.28  -0.43
 DEC  27   53731  0.05824  0.38691 -0.660278 -0.353   0.651   0.26  -0.37
 DEC  28   53732  0.05710  0.38635 -0.660818 -0.332   0.410   0.21  -0.37
 DEC  29   53733  0.05598  0.38553 -0.661099 -0.114   0.154   0.19  -0.40
 DEC  30   53734  0.05491  0.38468 -0.661149  0.264  -0.009   0.24  -0.33
 DEC  31   53735  0.05380  0.38391 -0.661124  0.701  -0.013   0.30  -0.17
 JAN   1   53736  0.05271  0.38335  0.338829  1.059   0.124   0.30  -0.13
 JAN   2   53737  0.05179  0.38302  0.338590  1.202   0.354   0.27  -0.26
 JAN   3   53738  0.05097  0.38276  0.338108  1.050   0.606   0.27  -0.38
 JAN   4   53739  0.05018  0.38244  0.337397  0.611   0.814   0.28  -0.34
 JAN   5   53740  0.04961  0.38208  0.336521 -0.026   0.936   0.25  -0.20
 JAN   6   53741  0.04950  0.38178  0.335577 -0.719   0.944   0.17  -0.09
 JAN   7   53742  0.04957  0.38166  0.334678 -1.320   0.827   0.11  -0.05
 JAN   8   53743  0.04951  0.38160  0.333951 -1.716   0.605   0.10  -0.07
 JAN   9   53744  0.04951  0.38132  0.333479 -1.850   0.334   0.14  -0.13
 JAN  10   53745  0.04958  0.38115  0.333276 -1.717   0.074   0.20  -0.23
 JAN  11   53746  0.04927  0.38104  0.333310 -1.364  -0.129   0.20  -0.37
 JAN  12   53747  0.04876  0.38070  0.333505 -0.863  -0.244   0.16  -0.42
 JAN  13   53748  0.04854  0.38039  0.333769 -0.303  -0.267   0.13  -0.36
 JAN  14   53749  0.04867  0.38004  0.334012  0.229  -0.180   0.16  -0.31
 JAN  15   53750  0.04922  0.37978  0.334108  0.660  -0.047   0.23  -0.39
 JAN  16   53751  0.04997  0.37970  0.334094  0.939   0.074   0.29  -0.54
 JAN  17   53752  0.05043  0.37998  0.333958  1.045   0.237   0.31  -0.63
 JAN  18   53753  0.05062  0.38038  0.333627  0.983   0.441   0.00   0.00
 JAN  19   53754  0.05071  0.38071  0.333089  0.785   0.555   0.00   0.00
 JAN  20   53755  0.05049  0.38097  0.332537  0.501   0.619   0.00   0.00
 JAN  21   53756  0.05024  0.38118  0.331874  0.193   0.682   0.00   0.00
 JAN  22   53757  0.05020  0.38131  0.331194 -0.073   0.673   0.00   0.00
 JAN  23   53758  0.05024  0.38075  0.330548 -0.235   0.613   0.00   0.00
 JAN  24   53759  0.05025  0.38016  0.329984 -0.241   0.525   0.00   0.00
 JAN  25   53760  0.05014  0.38034  0.329502 -0.061   0.411   0.00   0.00
 JAN  26   53761  0.05010  0.38064  0.329088  0.290   0.342   0.00   0.00
                                                             IERS, B 216 (3)
  
  
 3 - NORMAL VALUES OF THE EARTH ORIENTATION PARAMETERS AT FIVE-DAY INTERVALS 
       (IERS evaluation).
  
                        Raw normal values                     Uncertainties
  
  
 2005/06  MJD      x       y     UT1-UTC    dX    dY     x    y   UT1   dX  dY
    (0 h UTC)      "       "        s       0.001"       0.001" 0.0001s  0.001"
  
 DEC  5 53709  0.06646 0.39063 -0.647746 0.362 -.172   0.02 0.02 0.01 0.02 0.03
 DEC 10 53714  0.06537 0.38969 -0.651236 0.192 -.252   0.01 0.01 0.01 0.03 0.03
 DEC 15 53719  0.06417 0.38750 -0.653956 0.293 -.181   0.01 0.01 0.01 0.02 0.02
 DEC 20 53724  0.06387 0.38904 -0.654676 0.403 -.430   0.02 0.02 0.02 0.04 0.04
 DEC 25 53729  0.06067 0.38698 -0.658660 0.232 -.485   0.02 0.02 0.03 0.06 0.06
  
 DEC 30 53734  0.05491 0.38469 -0.661147 0.224 -.351   0.02 0.02 0.02 0.03 0.03
 JAN  4 53739  0.05018 0.38245  0.337400 0.305 -.385   0.01 0.01 0.02 0.02 0.02
 JAN  9 53744  0.04952 0.38133  0.333485 0.138 -.128   0.01 0.01 0.02 0.04 0.04
 JAN 14 53749  0.04867 0.38004  0.334012 0.159 -.316   0.01 0.02 0.01 0.03 0.03
 JAN 19 53754  0.05071 0.38069  0.333095    -     -    0.02 0.02 0.04  -    -  
  
 JAN 24 53759  0.05026 0.38016  0.329988    -     -    0.02 0.02 0.04  -    -  
  
  
 4 - DURATION OF THE DAY AND ANGULAR VELOCITY OF THE EARTH (IERS evaluation).
     The data of this section are smoothed, with the same characteristics as 
 UT1R in section 1. They are corrected for the effects of zonal tides with 
 periods up to 35 days. Section 2 gives the daily interpolation of D.
  
        Date (0h UTC)              DR              OmegaR   
      2005/06   MJD                s            (microrad/s)
                             
  
      DEC  5   53709             0.00042         72.921  15111
      DEC 10   53714             0.00034                 15118
      DEC 15   53719             0.00055                 15101
      DEC 20   53724             0.00060                 15096
      DEC 25   53729             0.00060                 15096
  
      DEC 30   53734             0.00043                 15111
      JAN  4   53739             0.00026                 15125
   
   
  
  5 - INFORMATION ON TIME SCALES 
      A leap second was introduced in UTC on 31 December 2005.      
      No leap second will be introduced in UTC on 30 June 2006.        

      All information concerning time scales : announcements of the
      leap seconds (Bulletin C) and of the value of DUT1 (Bulletin D)
      can be found in our web/ftp site :

      World Wide Web : http://hpiers.obspm.fr
      Anonymous ftp  : hpiers.obspm.fr or 145.238.100.28



                                                             IERS, B 216 (4)
       6 - SUMMARY OF CONTRIBUTED EARTH ORIENTATION PARAMETERS SERIES
     This section gives the average precision of the individual series contri-
 buting to the combination and their average agreement with it. The periods
 covered start at the beginning of the first month in Section 1 and end with 
 the last available value in the individual series considered.

    Units : 0.001" for x,y , 0.0001s for UT1, 0.001" for dX, dY.
--------------------------------------------------------------------------------
  EOP series                      Mean  formal  uncertainty
  Periods covered                 Weighted RMS agreement with Bulletin B
--------------------------------------------------------------------------------
                                   x     y     UT    D   dX    dY   Data Number
 VLBI      
   EOP(AUS)  1  R 1              0.10  0.10  0.05   -     -     -        11
   53710.20 to 53748.29          0.27  0.11  0.08   -     -     -  

   EOP(BKG)  3  R 4              0.12  0.10  0.04   -     -     -        13
   53710.20 to 53748.29          0.22  0.19  0.18   -     -     -  

   EOP(BKG)  3  R 2               -     -    0.11   -     -     -        38
   53709.79 to 53760.79           -     -    0.07   -     -     -  

   EOP(USNO) 5  R 1               -     -    0.15   -     -     -        40
   53709.79 to 53760.79           -     -    0.09   -     -     -  

   EOP(GSFC) 4  R 2              0.15  0.10  0.11   -     -     -        16
   53710.20 to 53752.17          0.11  0.13  0.13   -     -     -  

   EOP(GSFC) 4  R 1               -     -    0.12   -     -     -        38
   53709.79 to 53760.79           -     -    0.14   -     -     -  

   EOP(IAA)  5  R 2              0.09  0.08  0.04   -     0.15  0.06     13
   53710.20 to 53748.29          0.16  0.12  0.11   -     0.21  0.06   

   EOP(IAA)  5  R 1               -     -    0.12   -     -     -        38
   53709.79 to 53760.79           -     -    0.09   -     -     -  

   EOP(SPBU) 3  R 3              0.26  0.32  0.18   -     -     -         6
   53710.20 to 53740.27          0.18  0.14  0.06   -     -     -  

   EOP(SPBU) 2  R 1               -     -    0.13   -     -     -        31
   53709.79 to 53753.79           -     -    0.16   -     -     -  

   EOP(MAO)  3  R 1              0.11  0.09  0.05   -     0.17  0.06	 10
   53710.21 to 53740.29          0.18  0.23  0.12   -     0.22  0.12  

   EOP(USNO) 5  R 2              0.10  0.10  0.04   -     -     -        12
   53710.20 to 53748.29          0.13  0.12  0.13   -     -     -  

   EOP(IVS)  0  R 1              0.05  0.04  0.02   -     -     -        11
   53710.00 to 53748.00          0.12  0.28  0.06   -     -     -  

 GPS       
   EOP(CODE) 98 P 1              0.01  0.01   -    0.06   -     -        52
   53709.50 to 53760.50          0.05  0.05   -    0.19   -     -  

   EOP(EMR)  96 P 3              0.03  0.03   -    0.04   -     -        52
   53709.50 to 53760.50          0.10  0.07   -    0.45   -     -  

   EOP(ESOC) 96 P 1              0.01  0.02   -    0.04   -     -        52
   53709.50 to 53760.50          0.07  0.07   -    0.57   -     -  

   EOP(GFZ)  96 P 2              0.01  0.01   -    0.02   -     -        52
   53709.50 to 53760.50          0.06  0.04   -    0.19   -     -  

   EOP(IAA)  1  P 1              0.03  0.03   -    0.06   -     -        52
   53709.50 to 53760.50          0.15  0.26   -    0.30   -     -  

   EOP(JPL)  96 P 3              0.02  0.02   -    0.11   -     -        41
   53709.50 to 53749.50          0.05  0.07   -    0.30   -     -  

   EOP(NOAA) 96 P 1              0.00  0.00   -    0.02   -     -        51
   53709.50 to 53759.50          0.09  0.13   -    0.33   -     -  

   EOP(SIO)  96 P 1              0.06  0.06   -    0.15   -     -        52
   53709.50 to 53760.50          0.06  0.08   -    0.30   -     -  

   EOP(IGS F)95 P 2              0.02  0.02  0.07  0.06   -     -        41
   53709.50 to 53749.50          0.03  0.09  0.20  0.15   -     -  

   EOP(IGS R)96 P 2              0.04  0.04  0.15  0.06   -     -        52
   53709.50 to 53760.50          0.06  0.07  0.51  0.17   -     -  

   EOP(IERS) 97 P 1              0.03  0.03  0.18  0.13   -     -        52
   53709.50 to 53760.50          0.02  0.03  0.80  0.18   -     -  

 SLR       
   EOP(ASI)  3  L 2              0.08  0.09   -    0.21   -     -        51
   53709.50 to 53759.50          0.21  0.22   -    0.47   -     -  

   EOP(DUT)  98 L 1              0.10  0.09   -     -     -     -        14
   53715.00 to 53728.00          0.57  0.30   -     -     -     -  

   EOP(IAA)  2  L 1              0.04  0.04  0.03  0.03   -     -        53
   53709.00 to 53761.00          0.18  0.14  0.34  0.16   -     -  

   EOP(MCC)  97 L 1              0.10  0.11   -    0.10   -     -        46
   53709.00 to 53754.00          0.17  0.25   -    0.30   -     -  

   EOP(ILRS) 5  L 1              1.63  1.45   -    4.11   -     -        48
   53709.50 to 53756.50          0.16  0.16   -    0.49   -     -  

 Bulletin A
   EOP(NEOS) 97 C 1              0.05  0.07  0.07   -     -     -        53
   53709.00 to 53761.00          0.06  0.13  0.17   -     -     -  

