                                                                BULLETIN B 256
                                        			1 June 2009
   
    
 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      0.020    0.021    0.0377    0.076  0.143 
 
2009   4   2   54923 -117.792  408.396  323.7000    0.161  0.118    0.028    0.014    0.0399  0.063  0.158
2009   4   3   54924 -116.457  411.022  322.8216    0.081  0.053    0.022    0.014    0.0325  0.084  0.210
2009   4   4   54925 -115.173  413.746  321.8045   -0.068  0.047    0.012    0.013    0.0338  0.084  0.210
2009   4   5   54926 -113.303  416.495  320.6131   -0.195  0.116    0.011    0.014    0.0450  0.077  0.194
2009   4   6   54927 -110.758  419.561  319.1640   -0.197  0.199    0.010    0.025    0.0381  0.042  0.106
2009   4   7   54928 -108.469  423.139  317.4907   -0.141  0.232    0.008    0.032    0.0273  0.042  0.106
2009   4   8   54929 -106.883  426.190  315.7027   -0.043  0.183    0.010    0.031    0.0326  0.045  0.112
2009   4   9   54930 -105.354  428.890  313.9743    0.046  0.076    0.021    0.031    0.0384  0.053  0.132
2009   4  10   54931 -103.730  431.718  312.4016    0.095 -0.031    0.026    0.032    0.0393  0.053  0.133
2009   4  11   54932 -102.314  434.669  311.0206    0.106 -0.087    0.026    0.032    0.0475  0.053  0.133
2009   4  12   54933 -100.706  437.155  309.8581    0.106 -0.075    0.026    0.032    0.0535  0.053  0.133
2009   4  13   54934  -98.598  439.579  308.9233    0.112 -0.022    0.027    0.032    0.0628  0.053  0.134
2009   4  14   54935  -96.519  442.491  308.1591    0.121  0.076    0.026    0.026    0.0324  0.053  0.134
2009   4  15   54936  -94.112  445.673  307.4346    0.114  0.158    0.026    0.014    0.0204  0.047  0.117
2009   4  16   54937  -91.428  449.196  306.6366    0.103  0.190    0.021    0.014    0.0246  0.048  0.120
2009   4  17   54938  -88.983  452.481  305.7445    0.075  0.150    0.011    0.014    0.0358  0.051  0.127
2009   4  18   54939  -86.860  455.408  304.7271    0.038  0.062    0.011    0.015    0.0419  0.051  0.128
2009   4  19   54940  -84.862  458.264  303.5552    0.011 -0.022    0.020    0.026    0.0428  0.053  0.132
2009   4  20   54941  -82.712  460.904  302.1955   -0.003 -0.033    0.021    0.025    0.0260  0.052  0.130
2009   4  21   54942  -80.488  463.552  300.5908    0.005 -0.018    0.011    0.014    0.0199  0.052  0.130
2009   4  22   54943  -78.535  466.405  298.8140    0.030  0.023    0.011    0.014    0.0263  0.054  0.137
2009   4  23   54944  -76.957  469.307  296.9973    0.043  0.087    0.021    0.022    0.0449  0.068  0.172
2009   4  24   54945  -75.931  471.656  295.2516    0.029  0.123    0.025    0.014    0.0435  0.073  0.184
2009   4  25   54946  -74.998  473.875  293.6446   -0.011  0.119    0.025    0.014    0.0477  0.073  0.184
2009   4  26   54947  -73.746  476.211  292.2334   -0.047  0.100    0.026    0.025    0.0476  0.068  0.170
2009   4  27   54948  -71.997  478.137  291.0333   -0.044  0.106    0.026    0.025    0.0299  0.049  0.122
2009   4  28   54949  -69.797  480.145  289.9719    0.015  0.152    0.025    0.013    0.0262  0.049  0.122
2009   4  29   54950  -67.647  482.368  288.9592    0.104  0.216    0.025    0.013    0.0348  0.052  0.130
2009   4  30   54951  -65.220  484.399  287.8987    0.171  0.253    0.025    0.024    0.0331  0.059  0.148
2009   5   1   54952  -62.346  486.515  286.7000    0.166  0.227    0.024    0.031    0.0362  0.060  0.150
2009   5   2   54953  -59.569  488.737  285.2993    0.098  0.158    0.024    0.031    0.0628  0.060  0.150

 Preliminary extension 
2009   5   3   54954  -56.760  490.523  283.6856    0.020  0.103    0.025    0.032    0.0657  0.075  0.188
2009   5   4   54955  -53.879  492.465  281.9233   -0.020  0.097    0.025    0.032    0.0487  0.077  0.193
2009   5   5   54956  -51.568  494.372  280.1327    0.000  0.138    0.024    0.032    0.0477  0.077  0.193
2009   5   6   54957  -48.963  495.925  278.4268    0.060  0.181    0.025    0.032    0.0454  0.080  0.200
2009   5   7   54958  -45.781  497.770  276.8981    0.092  0.168    0.020    0.032    0.0287  0.090  0.226
2009   5   8   54959  -42.752  499.851  275.6325    0.055  0.093    0.011    0.033    0.0327  0.091  0.228
2009   5   9   54960  -39.699  502.181  274.6782    0.000  0.030    0.011    0.034    0.0504  0.091  0.228
2009   5  10   54961  -36.623  504.448  273.9512   -0.034 -0.002    0.020    0.034    0.0560  0.060  0.152
2009   5  11   54962  -33.665  506.166  273.3250   -0.028 -0.016    0.025    0.033    0.0603  0.059  0.148
2009   5  12   54963  -31.107  507.922  272.7598    0.037 -0.022    0.024    0.033    0.0686  0.059  0.148
2009   5  13   54964  -28.548  509.941  272.2196    0.169 -0.019    0.024    0.032    0.0824  0.059  0.149
2009   5  14   54965  -25.751  511.889  271.6375    0.289 -0.010    0.019    0.032    0.0749  0.095  0.239
2009   5  15   54966  -23.076  513.906  270.9363    0.271  0.001    0.010    0.032    0.0735  0.121  0.305
2009   5  16   54967  -20.188  515.506  270.0777   -0.003  0.009    0.010    0.033    0.0872  0.206  0.518
2009   5  17   54968  -16.619  516.931  269.0983   -0.003  0.009    0.023    0.041    0.0987  0.206  0.518
2009   5  18   54969  -13.006  518.582  267.9690   -0.003  0.010    0.058    0.075    0.0743  0.206  0.518
2009   5  19   54970   -9.405  520.268  266.6753   -0.003  0.009    0.136    0.158    0.0625  0.206  0.518
2009   5  20   54971   -5.969  521.690  265.2350   -0.002  0.010    0.156    0.150    0.0635  0.206  0.518
2009   5  21   54972   -2.644  522.704  263.7590   -0.002  0.009    0.093    0.142    0.0901  0.206  0.518
2009   5  22   54973    0.661  524.042  262.3721   -0.003  0.009    0.092    0.090    0.1049  0.206  0.518
2009   5  23   54974    3.608  525.389  261.1727   -0.003  0.010    0.141    0.086    0.0889  0.206  0.518
2009   5  24   54975    7.052  526.269  260.1449   -0.003  0.009    0.148    0.130    0.0837  0.206  0.518
2009   5  25   54976   10.772  527.501  259.2603   -0.003  0.010    0.158    0.105    0.1000  0.206  0.518
2009   5  26   54977   13.856  528.842  258.5041   -0.002  0.009    0.210    0.104    0.1592  0.206  0.518
2009   5  27   54978   16.587  530.152  257.7603   -0.003  0.009    0.188    0.131    0.2861  0.206  0.518
2009   5  28   54979   19.357  531.606  256.9037   -0.002  0.009    0.154    0.139    0.3139  0.206  0.518
2009   5  29   54980   22.164  532.924  255.7926   -0.001  0.001 1000.000 1000.000 1000.0000 397.800 1000.000
2009   5  30   54981   24.797  534.330  254.5155   -0.001  0.002 1000.000 1000.000 1000.0000 397.800 1000.000
2009   5  31   54982   27.539  535.717  253.1336    0.000  0.001 1000.000 1000.000 1000.0000 397.800 1000.000
2009   6   1   54983   30.817  537.012  251.7455   -0.001  0.002 1000.000 1000.000 1000.0000 397.800 1000.000
 
	
 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   

2009   4   2   54923   -59.961    -8.082     0.231     0.158
2009   4   3   54924   -59.882    -8.388     0.258     0.210
2009   4   4   54925   -60.002    -8.626     0.258     0.210
2009   4   5   54926   -60.094    -8.697     0.235     0.194
2009   4   6   54927   -59.906    -8.575     0.159     0.106
2009   4   7   54928   -59.651    -8.326     0.159     0.106
2009   4   8   54929   -59.397    -8.111     0.174     0.112
2009   4   9   54930   -59.230    -8.079     0.246     0.132
2009   4  10   54931   -59.155    -8.261     0.254     0.133
2009   4  11   54932   -59.131    -8.538     0.254     0.133
2009   4  12   54933   -59.136    -8.721     0.242     0.133
2009   4  13   54934   -59.150    -8.716     0.150     0.134
2009   4  14   54935   -59.151    -8.551     0.150     0.134
2009   4  15   54936   -59.103    -8.441     0.152     0.117
2009   4  16   54937   -58.922    -8.526     0.150     0.120
2009   4  17   54938   -58.662    -8.771     0.145     0.127
2009   4  18   54939   -58.389    -8.984     0.144     0.128
2009   4  19   54940   -58.209    -9.017     0.145     0.132
2009   4  20   54941   -58.240    -8.878     0.149     0.130
2009   4  21   54942   -58.438    -8.765     0.149     0.130
2009   4  22   54943   -58.630    -8.712     0.130     0.137
2009   4  23   54944   -58.733    -8.614     0.186     0.172
2009   4  24   54945   -58.850    -8.445     0.210     0.184
2009   4  25   54946   -59.187    -8.319     0.210     0.184
2009   4  26   54947   -59.718    -8.391     0.204     0.170
2009   4  27   54948   -60.111    -8.661     0.172     0.122
2009   4  28   54949   -60.043    -8.954     0.172     0.122
2009   4  29   54950   -59.557    -9.107     0.174     0.130
2009   4  30   54951   -59.027    -9.130     0.217     0.148
2009   5   1   54952   -58.823    -9.156     0.221     0.150
2009   5   2   54953   -58.953    -9.250     0.221     0.150

 
 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

2009   4   2   54923  0.8224  0.0014  15.04106703550    0.00000000024 
2009   4   3   54924  0.9373  0.0013  15.04106701550    0.00000000023 
2009   4   4   54925  1.1062  0.0013  15.04106698610    0.00000000023 
2009   4   5   54926  1.3264  0.0013  15.04106694776    0.00000000023 
2009   4   6   54927  1.5772  0.0013  15.04106690410    0.00000000023 
2009   4   7   54928  1.7469  0.0013  15.04106687456    0.00000000023 
2009   4   8   54929  1.7740  0.0013  15.04106686984    0.00000000023 
2009   4   9   54930  1.6383  0.0013  15.04106689346    0.00000000023 
2009   4  10   54931  1.4631  0.0013  15.04106692396    0.00000000023 
2009   4  11   54932  1.2838  0.0013  15.04106695518    0.00000000023 
2009   4  12   54933  1.0380  0.0013  15.04106699797    0.00000000023 
2009   4  13   54934  0.8111  0.0014  15.04106703747    0.00000000024 
2009   4  14   54935  0.7095  0.0014  15.04106705516    0.00000000024 
2009   4  15   54936  0.7437  0.0014  15.04106704920    0.00000000024 
2009   4  16   54937  0.8263  0.0014  15.04106703482    0.00000000024 
2009   4  17   54938  0.9579  0.0014  15.04106701191    0.00000000024 
2009   4  18   54939  1.1087  0.0014  15.04106698566    0.00000000024 
2009   4  19   54940  1.2719  0.0014  15.04106695725    0.00000000024 
2009   4  20   54941  1.4852  0.0014  15.04106692012    0.00000000024 
2009   4  21   54942  1.6977  0.0014  15.04106688312    0.00000000024 
2009   4  22   54943  1.8214  0.0014  15.04106686159    0.00000000024 
2009   4  23   54944  1.7988  0.0014  15.04106686552    0.00000000024 
2009   4  24   54945  1.6785  0.0013  15.04106688647    0.00000000023 
2009   4  25   54946  1.5092  0.0013  15.04106691594    0.00000000023 
2009   4  26   54947  1.2953  0.0013  15.04106695318    0.00000000023 
2009   4  27   54948  1.1005  0.0013  15.04106698709    0.00000000023 
2009   4  28   54949  1.0172  0.0013  15.04106700159    0.00000000023 
2009   4  29   54950  1.0082  0.0013  15.04106700316    0.00000000023 
2009   4  30   54951  1.0944  0.0014  15.04106698815    0.00000000024 
2009   5   1   54952  1.3137  0.0013  15.04106694997    0.00000000023 
2009   5   2   54953  1.5162  0.0013  15.04106691472    0.00000000023 


 4 - INFORMATION ON TIME SCALES      
     TAI - UTC = 34 s.  No leap second introduced during period [54923-54953]
     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                69    72     3     -    62    60       9
   54924.27 to 54951.27        90    90    10     -    60    70

   BKG   8 R  2 *              71    70     2     -    56    55       9
   54924.27 to 54951.27       180    70     2     -    30    60

   GSFC  8 R  4 *              62    63     2     7    57    56       9
   54924.27 to 54951.27       130    60     3    10    40    50

   IAA   5 R  2 *              63    66     2     -    48    48       9
   54924.27 to 54951.27       160    90     5     -    50    60

   SPBU  3 R  3 *              79    84     3     -    73    72       8
   54924.27 to 54951.27       170   130     8     -    80    70

   USNO  6 R  2 *              69    66     2     -    64    63       9
   54924.27 to 54951.27       130    60     3     -    40    30

   MAO   3 R  1 *              74    69     3     -    54    53       9
   54924.28 to 54951.28       120   170     8     -    80    40

   IVS   2 R  1 *              42    40     1     -    43    42       9
   54924.27 to 54951.27       150    50     1     -    20    30


 VLBI Intensive
   BKG   3 R  2 *               -     -     8     -     -     -      29
   54923.79 to 54950.79         -     -    10     -     -     -

   GSFC  8 R  1 *               -     -     8     -     -     -      29
   54923.79 to 54950.79         -     -     8     -     -     -

   IAA   5 R  1 *               -     -     9     -     -     -      28
   54923.79 to 54950.79         -     -    11     -     -     -

   USNO  5 R  1 *               -     -     8     -     -     -      29
   54923.79 to 54950.79         -     -    13     -     -     -


 GPS
   CODE 98 P  1                 4     5     -     2     -     -      30
   54923.50 to 54952.50        40    30     -     8     -     -

   JPL  96 P  3                 9     9     -     6     -     -      30
   54923.50 to 54952.50        40    40     -    12     -     -

   GFZ  96 P  2                 3     3     -     1     -     -      30
   54923.50 to 54952.50        40    30     -     7     -     -

   ESOC 96 P  1                12    10     -     1     -     -      30
   54923.50 to 54952.50        20    40     -    14     -     -

   NOAA 96 P  1                 3     3     -    31     -     -      30
   54923.50 to 54952.50        70    60     -    10     -     -

   SIO  96 P  1                20    21     -     5     -     -      30
   54923.50 to 54952.50        20    30     -     8     -     -

   EMR  96 P  3                33    34     -     6     -     -      30
   54923.50 to 54952.50        40    50     -     7     -     -

   IAA   1 P  1                28    30     -     5     -     -      30
   54923.50 to 54952.50        80   100     -    21     -     -

   IGS  96 P  2 *              36    29     -     5     -     -      30
   54923.50 to 54952.50        30    40     -     8     -     -

   IGS   7 P  1 *              18    17     -     5     -     -      30
   54923.50 to 54952.50        20    30     -     4     -     -


 SLR
   MCC  97 L  1               140   145     -    18     -     -      31
   54923.00 to 54953.00        90    70     -   185     -     -

   IAA   2 L  1                30    34     -     1     -     -      31
   54923.00 to 54953.00       140   140     -    17     -     -

   ASI   3 L  2                78    69     -     0     -     -      30
   54923.50 to 54952.50       200   160     -    27     -     -

   ILRS  5 L  1 *              42    42     -    42     -     -       7
   54926.50 to 54932.50        50    30     -    29     -     -


 BULLETIN A
   NEOS 97 C  1                35    44     5     -     -     -      31
   54923.00 to 54953.00        50    40     6     -     -     -

