                                                                BULLETIN B 266
                                        			15 April 2010   
    
 Contents are described in ftp://hpiers.obspm.fr/iers/bul/bulb_new/bulletinb.pdf 
	
 1 - DAILY FINAL VALUES OF  x, y, UT1-UTC, dX, dY
 Angular unit is milliarcsecond (mas), time unit is millisecond (ms). 
 The reference systems are described in the 2006 IERS Annual Report.
 
       DATE     MJD       x       y      UT1-UTC      dX     dY     x err    y err   UT1 err  X err  Y err
    (0 h UTC)            mas     mas       ms         mas    mas     mas      mas      ms     mas     mas

 Final values 

 Mean formal error      0.016    0.019    0.0337    0.104  0.164 
 
2010   2   2   55229    8.720  209.298   85.9846   -0.158 -0.337    0.022    0.021    0.0175  0.035  0.087
2010   2   3   55230    6.014  210.401   84.1061   -0.138 -0.307    0.022    0.021    0.0228  0.035  0.089
2010   2   4   55231    3.320  211.932   82.4037   -0.119 -0.240    0.020    0.019    0.0635  0.082  0.207
2010   2   5   55232    0.846  212.845   80.9912   -0.101 -0.151    0.017    0.015    0.0827  0.300  0.754
2010   2   6   55233   -1.059  213.363   79.8475   -0.096 -0.084    0.017    0.016    0.0610  0.305  0.766
2010   2   7   55234   -2.880  214.179   78.9143   -0.108 -0.084    0.021    0.024    0.0446  0.115  0.290
2010   2   8   55235   -4.827  215.123   78.1566   -0.130 -0.182    0.020    0.021    0.0198  0.045  0.112
2010   2   9   55236   -6.522  216.272   77.5394   -0.141 -0.308    0.016    0.017    0.0123  0.045  0.112
2010   2  10   55237   -8.291  217.864   76.9736   -0.130 -0.393    0.016    0.017    0.0137  0.045  0.112
2010   2  11   55238  -10.751  219.570   76.3743   -0.094 -0.395    0.016    0.021    0.0213  0.043  0.109
2010   2  12   55239  -13.629  221.076   75.6518   -0.048 -0.327    0.016    0.021    0.0269  0.043  0.108
2010   2  13   55240  -15.968  222.657   74.7517   -0.011 -0.245    0.016    0.021    0.0381  0.043  0.108
2010   2  14   55241  -17.844  224.488   73.6816   -0.003 -0.211    0.015    0.020    0.0585  0.043  0.108
2010   2  15   55242  -19.556  226.355   72.4618   -0.031 -0.264    0.018    0.017    0.0525  0.032  0.080
2010   2  16   55243  -21.183  228.637   71.0934   -0.082 -0.308    0.017    0.017    0.0110  0.031  0.079
2010   2  17   55244  -22.569  230.956   69.5888   -0.129 -0.307    0.014    0.018    0.0115  0.031  0.079
2010   2  18   55245  -23.456  233.003   68.0324   -0.153 -0.219    0.013    0.018    0.0152  0.034  0.086
2010   2  19   55246  -24.214  235.256   66.5676   -0.142 -0.106    0.013    0.018    0.0185  0.048  0.120
2010   2  20   55247  -25.107  237.349   65.2052   -0.102 -0.049    0.014    0.018    0.0277  0.049  0.124
2010   2  21   55248  -26.363  239.236   63.9561   -0.064 -0.092    0.015    0.019    0.0454  0.051  0.128
2010   2  22   55249  -27.545  240.945   62.8322   -0.048 -0.235    0.015    0.019    0.0216  0.029  0.073
2010   2  23   55250  -28.362  242.625   61.8202   -0.052 -0.373    0.015    0.019    0.0134  0.029  0.073
2010   2  24   55251  -29.162  244.563   60.8424   -0.066 -0.432    0.015    0.020    0.0171  0.029  0.073
2010   2  25   55252  -30.468  246.711   59.7599   -0.085 -0.368    0.015    0.020    0.0391  0.049  0.124
2010   2  26   55253  -31.548  248.756   58.4598   -0.110 -0.208    0.015    0.019    0.0396  0.063  0.159
2010   2  27   55254  -32.537  251.091   56.8936   -0.149 -0.029    0.015    0.019    0.0539  0.063  0.159
2010   2  28   55255  -34.040  253.477   55.0330   -0.200  0.078    0.016    0.019    0.0656  0.060  0.152
2010   3   1   55256  -35.102  255.651   52.9832   -0.238  0.043    0.016    0.019    0.0288  0.049  0.122

 Preliminary extension 
2010   3   2   55257  -35.888  257.756   50.9209   -0.235 -0.066    0.016    0.019    0.0185  0.049  0.122
2010   3   3   55258  -36.932  259.932   49.0291   -0.173 -0.173    0.015    0.024    0.0233  0.049  0.122
2010   3   4   55259  -38.283  261.937   47.3894   -0.092 -0.223    0.015    0.039    0.0480  0.080  0.200
2010   3   5   55260  -39.104  263.964   46.0213   -0.062 -0.216    0.015    0.025    0.0402  0.098  0.246
2010   3   6   55261  -39.931  266.037   44.9191   -0.117 -0.193    0.015    0.020    0.0475  0.098  0.247
2010   3   7   55262  -41.341  267.786   44.0256   -0.221 -0.194    0.015    0.019    0.0513  0.093  0.234
2010   3   8   55263  -42.957  269.513   43.2576   -0.277 -0.207    0.015    0.018    0.0261  0.072  0.182
2010   3   9   55264  -44.842  271.081   42.4582   -0.244 -0.205    0.014    0.017    0.0171  0.072  0.182
2010   3  10   55265  -46.171  272.487   41.5510   -0.129 -0.172    0.014    0.012    0.0216  0.062  0.155
2010   3  11   55266  -47.089  274.022   40.5968   -0.002 -0.113    0.014    0.012    0.0396  0.056  0.142
2010   3  12   55267  -48.049  275.788   39.5876    0.055 -0.041    0.015    0.016    0.0273  0.056  0.140
2010   3  13   55268  -48.738  277.751   38.4749    0.010  0.023    0.018    0.018    0.0377  0.056  0.140
2010   3  14   55269  -49.647  280.167   37.3622   -0.099  0.051    0.018    0.019    0.0547  0.056  0.142
2010   3  15   55270  -50.861  282.828   36.2579   -0.185  0.015    0.014    0.023    0.0605  0.066  0.165
2010   3  16   55271  -51.878  285.476   35.0798   -0.208 -0.088    0.013    0.021    0.0683  0.066  0.165
2010   3  17   55272  -52.567  287.766   33.8204   -0.158 -0.206    0.013    0.017    0.0673  0.062  0.155
2010   3  18   55273  -53.218  289.712   32.5868   -0.080 -0.272    0.013    0.021    0.0579  0.075  0.188
2010   3  19   55274  -53.919  291.218   31.4854   -0.028 -0.245    0.016    0.036    0.0559  0.078  0.197
2010   3  20   55275  -54.408  292.530   30.5703   -0.034 -0.130    0.016    0.023    0.0573  0.078  0.197
2010   3  21   55276  -54.523  294.192   29.8318   -0.079  0.012    0.013    0.017    0.0588  0.070  0.176
2010   3  22   55277  -54.457  296.142   29.2255   -0.119  0.109    0.012    0.016    0.0627  0.046  0.115
2010   3  23   55278  -54.697  298.362   28.6740   -0.122  0.113    0.012    0.021    0.0620  0.046  0.115
2010   3  24   55279  -55.168  300.863   28.0647   -0.092  0.028    0.012    0.030    0.0532  0.046  0.115
2010   3  25   55280  -56.007  303.677   27.2624   -0.074 -0.103    0.013    0.021    0.0589  0.042  0.106
2010   3  26   55281  -57.018  306.235   26.1362   -0.104 -0.224    0.012    0.017    0.0746  0.042  0.105
2010   3  27   55282  -57.654  308.316   24.6604   -0.183 -0.291    0.012    0.020    0.0520  0.042  0.105
2010   3  28   55283  -58.283  310.528   22.9424   -0.257 -0.286    0.012    0.021    0.0379  0.043  0.108
2010   3  29   55284  -58.909  312.752   21.0356   -0.262 -0.217    0.012    0.017    0.0440  0.058  0.146
2010   3  30   55285  -59.928  314.957   19.0490   -0.179 -0.110    0.012    0.016    0.0620  0.063  0.159
2010   3  31   55286  -60.814  316.912   17.2031   -0.004  0.014    0.012    0.015    0.0590  0.241  0.605
2010   4   1   55287  -61.106  319.289   15.6977   -0.004  0.014    0.012    0.014    0.0597  0.241  0.605
 
	
 2 - DAILY FINAL VALUES OF CELESTIAL POLE OFFSETS dPsi1980 & dEps1980
  dPsi1980   dEps1980 ....dPsi,dEps / IAU 1980 precession-nutation model      
 Description : ftp://hpiers.obspm.fr/iers/bul/bulb_new/bulletinb.pdf
 The reference systems are described in the 2006 IERS Annual Report.
 
       DATE     MJD    dPsi1980   dEps1980  sig dPsi  sig dEps   
    (0 h UTC)             mas        mas      mas       mas   

2010   2   2   55229   -64.325    -5.925     0.153     0.087
2010   2   3   55230   -64.373    -5.922     0.229     0.089
2010   2   4   55231   -64.556    -5.787     0.443     0.207
2010   2   5   55232   -64.771    -5.702     0.681     0.754
2010   2   6   55233   -64.851    -5.845     0.682     0.766
2010   2   7   55234   -64.827    -6.155     0.420     0.290
2010   2   8   55235   -64.888    -6.471     0.185     0.112
2010   2   9   55236   -65.046    -6.680     0.185     0.112
2010   2  10   55237   -65.115    -6.799     0.186     0.112
2010   2  11   55238   -64.951    -6.818     0.236     0.109
2010   2  12   55239   -64.608    -6.671     0.253     0.108
2010   2  13   55240   -64.246    -6.378     0.253     0.108
2010   2  14   55241   -64.002    -6.127     0.253     0.108
2010   2  15   55242   -63.952    -6.144     0.167     0.080
2010   2  16   55243   -64.078    -6.372     0.163     0.079
2010   2  17   55244   -64.245    -6.626     0.164     0.079
2010   2  18   55245   -64.299    -6.712     0.171     0.086
2010   2  19   55246   -64.189    -6.679     0.198     0.120
2010   2  20   55247   -64.058    -6.679     0.200     0.124
2010   2  21   55248   -64.125    -6.759     0.199     0.128
2010   2  22   55249   -64.469    -6.865     0.113     0.073
2010   2  23   55250   -65.002    -6.959     0.113     0.073
2010   2  24   55251   -65.503    -7.172     0.114     0.073
2010   2  25   55252   -65.670    -7.528     0.231     0.124
2010   2  26   55253   -65.323    -7.771     0.391     0.159
2010   2  27   55254   -64.696    -7.612     0.392     0.159
2010   2  28   55255   -64.239    -7.143     0.347     0.152
2010   3   1   55256   -64.122    -6.803     0.226     0.122

 
 3 - EARTH ANGULAR VELOCITY : DAILY FINAL VALUES OF LOD, OMEGA AT 0hUTC
 
 LOD     : Excess of the Length of day - 86400 s TAI 
 OMEGA   : Earth angular velocity  
 Description: ftp://hpiers.obspm.fr/iers/bul/bulb_new/bulletinb.pdf
 
    DATE        MJD     LOD     sigma      OMEGA           sigma        
 (0 h UTC)              ms       ms        mas/ms          mas/ms

2010   2   2   55229  1.8681  0.0026  15.04106685346    0.00000000045 
2010   2   3   55230  1.7864  0.0026  15.04106686768    0.00000000045 
2010   2   4   55231  1.5385  0.0025  15.04106691084    0.00000000044 
2010   2   5   55232  1.2685  0.0025  15.04106695784    0.00000000044 
2010   2   6   55233  1.0554  0.0025  15.04106699494    0.00000000044 
2010   2   7   55234  0.8434  0.0025  15.04106703185    0.00000000044 
2010   2   8   55235  0.6803  0.0024  15.04106706024    0.00000000042 
2010   2   9   55236  0.5753  0.0023  15.04106707852    0.00000000040 
2010   2  10   55237  0.5670  0.0024  15.04106707996    0.00000000042 
2010   2  11   55238  0.6693  0.0025  15.04106706215    0.00000000044 
2010   2  12   55239  0.8218  0.0025  15.04106703561    0.00000000044 
2010   2  13   55240  0.9954  0.0025  15.04106700538    0.00000000044 
2010   2  14   55241  1.1595  0.0023  15.04106697682    0.00000000040 
2010   2  15   55242  1.3130  0.0022  15.04106695009    0.00000000038 
2010   2  16   55243  1.4267  0.0022  15.04106693030    0.00000000038 
2010   2  17   55244  1.4902  0.0022  15.04106691925    0.00000000038 
2010   2  18   55245  1.4938  0.0022  15.04106691862    0.00000000038 
2010   2  19   55246  1.4125  0.0022  15.04106693277    0.00000000038 
2010   2  20   55247  1.2918  0.0022  15.04106695379    0.00000000038 
2010   2  21   55248  1.1747  0.0023  15.04106697417    0.00000000040 
2010   2  22   55249  1.0692  0.0024  15.04106699254    0.00000000042 
2010   2  23   55250  0.9790  0.0023  15.04106700824    0.00000000040 
2010   2  24   55251  0.9995  0.0023  15.04106700467    0.00000000040 
2010   2  25   55252  1.1888  0.0023  15.04106697172    0.00000000040 
2010   2  26   55253  1.4628  0.0023  15.04106692402    0.00000000040 
2010   2  27   55254  1.7307  0.0023  15.04106687738    0.00000000040 
2010   2  28   55255  1.9743  0.0024  15.04106683497    0.00000000042 
2010   3   1   55256  2.0942  0.0024  15.04106681410    0.00000000042 


 4 - INFORMATION ON TIME SCALES      
     TAI - UTC = 34 s.  No leap second introduced during period [55229-55256]
     All information concerning time scales : 
	 - leap seconds announcements : Bulletin C 
	 - DUT1 announcements (UT1-UTC with 0.1 ms accuracy) : Bulletin D
      can be found at : 
         - web site : http://hpiers.obspm.fr/eop-pc/
         - anonymous ftp : hpiers.obspm.fr/iers/ or 145.238.100.28


 5 - SUMMARY OF CONTRIBUTED EARTH ORIENTATION PARAMETERS SERIES
 This section gives the average precision of the individual series, some of them
 contributing to the combination (*) and their average agreement with it. 
 The period covered is that one of Bulletin B. 
 
    Units :  micro-arc-seconds for x/y/dX/dY        micro-seconds for UT1/LOD
-----------------------------------------------------------------------------
  EOP series             first line  : Mean  formal  uncertainty
  Periods covered        second line : Weighted RMS agreement with Bulletin B
-----------------------------------------------------------------------------
                                x     y    UT1   LOD   dX    dY   Data Number		

 VLBI Standards
   AUS   1 R  1               106   133     3     -    89    82       8
   55229.21 to 55253.27       300   150     9     -    70    40

   BKG   8 R  2 *              74    82     2     -    66    63       9
   55229.21 to 55253.27       120   110     8     -    30   100

   GSFC  9 R  4 *              62    64     2     6    61    59       9
   55229.21 to 55253.27       140    90     8    15    30    80

   IAA   5 R  2 *              79    90     2     -    60    58       9
   55229.21 to 55253.27       250   140    10     -    90   100

   SPBU  3 R  3 *             165   258     6     -   126   117       8
   55229.21 to 55253.27       250   230     6     -    90    30

   USNO  6 R  2 *              94   169     3     -   229    95       8
   55229.21 to 55253.27        90   110     5     -    50    20

   MAO   3 R  1 *              99    89     2     -    66    62       8
   55229.23 to 55253.32       130   140     4     -    50    60

   IVS   2 R  1 *              27    30     1     -    31    29       7
   55229.21 to 55253.27       120    80     7     -    20    20


 VLBI Intensive
   BKG   3 R  2 *               -     -     9     -     -     -      26
   55229.80 to 55255.33         -     -    26     -     -     -

   GSFC  9 R  2 *               -     -    11     -     -     -      26
   55229.80 to 55255.33         -     -    23     -     -     -

   IAA   5 R  1 *               -     -    10     -     -     -      24
   55229.80 to 55255.33         -     -    24     -     -     -

   USNO  5 R  1 *               -     -     9     -     -     -      26
   55229.80 to 55255.33         -     -    23     -     -     -


 GPS
   CODE 98 P  1                 5     5     -     2     -     -      27
   55229.50 to 55255.50        30    30     -    17     -     -

   JPL  96 P  3                 9     9     -     6     -     -      27
   55229.50 to 55255.50        60    40     -    25     -     -

   GFZ  96 P  2                 5     6     -     1     -     -      27
   55229.50 to 55255.50        30    30     -    17     -     -

   ESOC 96 P  1                11    10     -     1     -     -      27
   55229.50 to 55255.50        50    40     -    18     -     -

   NOAA 96 P  1                 2     3     -    34     -     -      27
   55229.50 to 55255.50        40    40     -    16     -     -

   SIO  96 P  1                14    14     -     3     -     -      27
   55229.50 to 55255.50        40    40     -    14     -     -

   EMR  96 P  3                32    32     -     6     -     -      27
   55229.50 to 55255.50        60    40     -    13     -     -

   IAA   1 P  1                29    32     -     6     -     -      27
   55229.50 to 55255.50       120   130     -    29     -     -

   IGS  96 P  2 *              29    19     -     6     -     -      27
   55229.50 to 55255.50        40    30     -    13     -     -

   IGS   7 P  1 *              34    33     -     8     -     -      27
   55229.50 to 55255.50        30    30     -    12     -     -


 SLR
   MCC  97 L  1               185   174     -    18     -     -      28
   55229.00 to 55256.00       240   170     -   102     -     -

   IAA   2 L  1                49    43     -     2     -     -      28
   55229.00 to 55256.00       150   150     -    19     -     -

   ASI   3 L  2               107    90     -    20     -     -      27
   55229.50 to 55255.50       270   300     -    78     -     -

   ILRS  5 L  1 *              98    98     -    98     -     -      27
   55229.50 to 55255.50       140   110     -    38     -     -


 BULLETIN A
   NEOS 97 C  1                59    48     4     -     -     -      28
   55229.00 to 55256.00        50    40    15     -     -     -

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