                                                                BULLETIN B 253
                                        			5 May 2009
   
    
 Contents are described in ftp://hpiers.obspm.fr/iers/bul/bulb/bulletinb.pdf 
	
 1 - DAILY SMOOTHED VALUES OF  x, y, UT1-UTC, UT1R-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      0.015    0.020    0.0417    0.075  0.153 
 
2008  12  31   54831  -13.455  145.108 -591.8664   -0.169 -0.284    0.009    0.013    0.0277  0.064  0.161
2009   1   1   54832  -17.016  146.237  407.1576   -0.143 -0.271    0.011    0.010    0.0451  0.113  0.283
2009   1   2   54833  -20.429  147.559  405.9740   -0.134 -0.257    0.021    0.010    0.0582  0.142  0.357
2009   1   3   54834  -23.268  149.070  404.6727   -0.131 -0.230    0.028    0.020    0.0584  0.109  0.275
2009   1   4   54835  -25.730  150.753  403.3476   -0.098 -0.169    0.010    0.016    0.0653  0.035  0.088
2009   1   5   54836  -29.039  152.756  402.0746   -0.145 -0.150    0.010    0.013    0.0456  0.035  0.088
2009   1   6   54837  -33.380  154.564  400.9167   -0.222 -0.146    0.009    0.016    0.0424  0.035  0.088
2009   1   7   54838  -37.543  156.256  399.9293   -0.307 -0.146    0.012    0.015    0.0535  0.035  0.088
2009   1   8   54839  -41.696  158.083  399.2082   -0.340 -0.144    0.012    0.016    0.0563  0.040  0.100
2009   1   9   54840  -45.899  159.694  398.6768   -0.291 -0.153    0.010    0.031    0.0430  0.041  0.103
2009   1  10   54841  -49.568  161.234  398.1244   -0.183 -0.185    0.010    0.041    0.0428  0.041  0.103
2009   1  11   54842  -53.085  162.767  397.4702   -0.085 -0.238    0.010    0.041    0.0500  0.042  0.106
2009   1  12   54843  -56.504  164.437  396.5156   -0.101 -0.284    0.010    0.033    0.0301  0.045  0.114
2009   1  13   54844  -59.603  166.143  395.2868   -0.182 -0.298    0.010    0.019    0.0211  0.045  0.114
2009   1  14   54845  -62.424  167.713  393.8309   -0.235 -0.261    0.011    0.019    0.0235  0.045  0.114
2009   1  15   54846  -65.337  169.328  392.3164   -0.285 -0.171    0.011    0.029    0.0227  0.064  0.162
2009   1  16   54847  -68.184  170.379  390.8872   -0.284 -0.060    0.013    0.018    0.0214  0.072  0.181
2009   1  17   54848  -70.732  171.431  389.6165   -0.256  0.030    0.015    0.016    0.0333  0.072  0.181
2009   1  18   54849  -73.238  173.130  388.5583   -0.235  0.081    0.016    0.017    0.0562  0.072  0.181
2009   1  19   54850  -75.721  174.956  387.7766   -0.211  0.062    0.029    0.018    0.0683  0.022  0.056
2009   1  20   54851  -78.285  177.086  387.2767   -0.196 -0.011    0.028    0.017    0.0233  0.022  0.056
2009   1  21   54852  -81.158  179.579  386.9824   -0.184 -0.092    0.014    0.014    0.0144  0.022  0.056
2009   1  22   54853  -84.345  181.928  386.8180   -0.189 -0.163    0.011    0.014    0.0209  0.025  0.064
2009   1  23   54854  -87.567  184.263  386.7777   -0.173 -0.172    0.011    0.018    0.0269  0.058  0.145
2009   1  24   54855  -90.105  186.738  386.7497   -0.098 -0.086    0.014    0.019    0.0323  0.066  0.166
2009   1  25   54856  -91.566  189.391  386.6245   -0.009  0.058    0.022    0.019    0.0408  0.069  0.174
2009   1  26   54857  -93.198  192.251  386.3369    0.062  0.196    0.013    0.016    0.0375  0.109  0.274
2009   1  27   54858  -94.485  194.839  385.8680    0.063  0.254    0.013    0.012    0.0454  0.126  0.317
2009   1  28   54859  -95.928  197.499  385.1932    0.025  0.236    0.024    0.016    0.0625  0.123  0.309
2009   1  29   54860  -98.113  200.068  384.3678   -0.054  0.138    0.031    0.030    0.0679  0.054  0.137
2009   1  30   54861 -100.273  202.610  383.4135   -0.140  0.013    0.032    0.037    0.0564  0.051  0.127

 Preliminary extension 
2009   1  31   54862 -102.833  205.365  382.4439 -0.199 -0.085    0.032    0.038    0.0486  0.051  0.127
2009   2   1   54863 -105.459  208.037  381.5437 -0.221 -0.120    0.033    0.038    0.0445  0.050  0.126
2009   2   2   54864 -107.489  210.660  380.7136 -0.223 -0.091    0.031    0.030    0.0327  0.047  0.119
2009   2   3   54865 -108.400  213.576  380.0427 -0.207 -0.030    0.030    0.016    0.0257  0.047  0.119
2009   2   4   54866 -109.018  217.008  379.5070 -0.184  0.027    0.031    0.016    0.0324  0.045  0.114
2009   2   5   54867 -110.042  220.745  379.0659 -0.169  0.046    0.031    0.030    0.0356  0.041  0.102
2009   2   6   54868 -111.673  224.431  378.6287 -0.172  0.023    0.031    0.038    0.0237  0.040  0.100
2009   2   7   54869 -113.815  227.977  378.0937 -0.198 -0.028    0.032    0.037    0.0283  0.040  0.100
2009   2   8   54870 -115.902  231.431  377.3351 -0.243 -0.080    0.027    0.026    0.0440  0.041  0.104
2009   2   9   54871 -118.087  234.480  376.3037 -0.309 -0.111    0.015    0.016    0.0338  0.058  0.146
2009   2  10   54872 -119.729  237.232  375.0237 -0.351 -0.112    0.015    0.017    0.0246  0.058  0.146
2009   2  11   54873 -120.539  240.419  373.5832 -0.333 -0.080    0.023    0.028    0.0312  0.058  0.146
2009   2  12   54874 -121.389  244.150  372.1433 -0.266 -0.035    0.014    0.027    0.0435  0.044  0.111
2009   2  13   54875 -122.379  247.763  370.8811 -0.131 -0.005    0.011    0.017    0.0292  0.042  0.106
2009   2  14   54876 -123.690  251.257  369.9206  0.035  0.002    0.013    0.018    0.0357  0.042  0.106
2009   2  15   54877 -125.272  254.961  369.2113  0.160 -0.004    0.023    0.029    0.0538  0.042  0.106
2009   2  16   54878 -126.816  258.801  368.6792  0.153  0.002    0.016    0.030    0.0497  0.033  0.083
2009   2  17   54879 -128.630  262.151  368.3044  0.060  0.016    0.011    0.018    0.0353  0.033  0.082
2009   2  18   54880 -130.489  265.097  368.0646 -0.091  0.039    0.011    0.014    0.0248  0.033  0.082
2009   2  19   54881 -132.348  268.003  367.9049 -0.213  0.062    0.012    0.014    0.0296  0.035  0.087
2009   2  20   54882 -133.379  270.469  367.7699 -0.270  0.075    0.012    0.014    0.0322  0.041  0.104
2009   2  21   54883 -133.709  273.091  367.6138 -0.261  0.079    0.011    0.014    0.0396  0.042  0.105
2009   2  22   54884 -134.197  275.870  367.3530 -0.222  0.084    0.011    0.017    0.0657  0.042  0.105
2009   2  23   54885 -133.817  278.719  366.8716 -0.205  0.040    0.014    0.016    0.0689  0.049  0.124
2009   2  24   54886 -133.123  282.179  366.1518 -0.177  0.034    0.025    0.012    0.0274  0.050  0.126
2009   2  25   54887 -133.363  285.685  365.2167 -0.160  0.032    0.031    0.013    0.0176  0.049  0.123
2009   2  26   54888 -133.580  289.003  364.0774 -0.120  0.033    0.026    0.018    0.0242  0.055  0.138
2009   2  27   54889 -133.614  292.572  362.8290 -0.088  0.034    0.013    0.032    0.0439  0.090  0.226
2009   2  28   54890 -133.986  296.223  361.5635 -0.080  0.034    0.010    0.037    0.0608  0.095  0.239
2009   3   1   54891 -134.380  299.860  360.3425 -0.108  0.031    0.013    0.030    0.0540  0.080  0.200
 
	
 2 - DAILY VALUES OF CELESTIAL POLE OFFSETS dPsi1980   dEps1980 
  dPsi1980   dEps1980 ....dPsi,dEps / IAU 1980 precession-nutation model      
 Description : ftp://hpiers.obspm.fr/iers/bul/bulb/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   

2008  12  31   54831   -62.158    -4.074     0.248     0.161
2009   1   1   54832   -62.106    -4.084     0.353     0.283
2009   1   2   54833   -62.155    -4.092     0.391     0.357
2009   1   3   54834   -62.199    -4.119     0.303     0.275
2009   1   4   54835   -62.160    -4.184     0.110     0.088
2009   1   5   54836   -62.375    -4.269     0.110     0.088
2009   1   6   54837   -62.790    -4.202     0.110     0.088
2009   1   7   54838   -63.379    -4.027     0.110     0.088
2009   1   8   54839   -63.819    -3.990     0.136     0.100
2009   1   9   54840   -63.708    -4.196     0.144     0.103
2009   1  10   54841   -62.988    -4.416     0.144     0.103
2009   1  11   54842   -62.157    -4.405     0.147     0.106
2009   1  12   54843   -61.848    -4.267     0.162     0.114
2009   1  13   54844   -61.916    -4.285     0.162     0.114
2009   1  14   54845   -61.931    -4.468     0.184     0.114
2009   1  15   54846   -62.011    -4.544     0.188     0.162
2009   1  16   54847   -62.221    -4.393     0.189     0.181
2009   1  17   54848   -62.528    -4.197     0.189     0.181
2009   1  18   54849   -62.710    -4.157     0.189     0.181
2009   1  19   54850   -62.652    -4.283     0.104     0.056
2009   1  20   54851   -62.561    -4.432     0.086     0.056
2009   1  21   54852   -62.551    -4.538     0.086     0.056
2009   1  22   54853   -62.600    -4.674     0.097     0.064
2009   1  23   54854   -62.532    -4.818     0.180     0.145
2009   1  24   54855   -62.261    -4.817     0.194     0.166
2009   1  25   54856   -61.931    -4.576     0.203     0.174
2009   1  26   54857   -61.595    -4.200     0.334     0.274
2009   1  27   54858   -61.392    -3.948     0.359     0.317
2009   1  28   54859   -61.335    -3.953     0.349     0.309
2009   1  29   54860   -61.527    -4.184     0.152     0.137
2009   1  30   54861   -61.851    -4.459     0.141     0.127

 
 3 - EARTH ANGULAR VELOCITY : DAILY  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/bulletinb.pdf
 
    DATE        MJD     LOD     sigma      OMEGA           sigma        
 (0 h UTC)              ms       ms        mas/ms          mas/ms

2008  12  31   54831  0.8256  0.0145  15.04106703494    0.00000000252 
2009   1   1   54832  1.0657  0.0146  15.04106699315    0.00000000254 
2009   1   2   54833  1.2261  0.0148  15.04106696522    0.00000000258 
2009   1   3   54834  1.3035  0.0149  15.04106695175    0.00000000259 
2009   1   4   54835  1.3055  0.0151  15.04106695140    0.00000000263 
2009   1   5   54836  1.2194  0.0153  15.04106696639    0.00000000266 
2009   1   6   54837  1.0516  0.0016  15.04106699560    0.00000000028 
2009   1   7   54838  0.8134  0.0016  15.04106703707    0.00000000028 
2009   1   8   54839  0.5943  0.0016  15.04106707521    0.00000000028 
2009   1   9   54840  0.5407  0.0016  15.04106708454    0.00000000028 
2009   1  10   54841  0.6169  0.0016  15.04106707128    0.00000000028 
2009   1  11   54842  0.8088  0.0017  15.04106703787    0.00000000030 
2009   1  12   54843  1.1084  0.0018  15.04106698571    0.00000000031 
2009   1  13   54844  1.3482  0.0018  15.04106694397    0.00000000031 
2009   1  14   54845  1.4989  0.0018  15.04106691773    0.00000000031 
2009   1  15   54846  1.5111  0.0018  15.04106691561    0.00000000031 
2009   1  16   54847  1.3745  0.0018  15.04106693939    0.00000000031 
2009   1  17   54848  1.1827  0.0018  15.04106697278    0.00000000031 
2009   1  18   54849  0.9517  0.0018  15.04106701299    0.00000000031 
2009   1  19   54850  0.6386  0.0018  15.04106706750    0.00000000031 
2009   1  20   54851  0.3783  0.0019  15.04106711281    0.00000000033 
2009   1  21   54852  0.2307  0.0019  15.04106713851    0.00000000033 
2009   1  22   54853  0.0995  0.0019  15.04106716135    0.00000000033 
2009   1  23   54854  0.0505  0.0020  15.04106716988    0.00000000035 
2009   1  24   54855  0.0938  0.0019  15.04106716234    0.00000000033 
2009   1  25   54856  0.2173  0.0017  15.04106714084    0.00000000030 
2009   1  26   54857  0.3765  0.0016  15.04106711313    0.00000000028 
2009   1  27   54858  0.5504  0.0015  15.04106708285    0.00000000026 
2009   1  28   54859  0.7371  0.0015  15.04106705035    0.00000000026 
2009   1  29   54860  0.9009  0.0015  15.04106702184    0.00000000026 
2009   1  30   54861  0.9688  0.0015  15.04106701002    0.00000000026 


 4 - INFORMATION ON TIME SCALES 
     TAI - UTC = 33 s.        
     No leap second introduced during period [54831-54861]
     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                78    83     3     -    63    63       8
   54831.29 to 54858.21       220   100     6     -    50    30

   BKG   8 R  2 *              85    87     3     -    59    64       9
   54831.29 to 54858.21        50    60    11     -    50    80

   GSFC  8 R  4 *              80    83     3    10    67    72       9
   54831.29 to 54858.21        80    80     9    19    30    40

   IAA   5 R  2 *              83    86     3     -    56    54       9
   54831.29 to 54858.21        30    60    10     -    70    50

   SPBU  3 R  3 *              79    86     3     -    64    64       8
   54831.29 to 54858.21       180   110     6     -    50    90

   USNO  6 R  2 *              85    85     3     -    66    75       8
   54831.29 to 54858.21        70    80     3     -    20    30

   MAO   3 R  1 *             106   112     4     -    74    70       9
   54831.28 to 54858.22       130    50    10     -    70    40

   IVS   2 R  1 *              46    46     1     -    46    50       8
   54831.29 to 54858.21        70    60     2     -    10    20


 VLBI Intensive
   BKG   3 R  2 *               -     -     8     -     -     -      28
   54831.80 to 54860.79         -     -    22     -     -     -

   GSFC  8 R  1 *               -     -     9     -     -     -      28
   54831.80 to 54860.79         -     -    19     -     -     -

   IAA   5 R  1 *               -     -    12     -     -     -      26
   54831.80 to 54860.79         -     -    26     -     -     -

   USNO  5 R  1 *               -     -     9     -     -     -      28
   54831.80 to 54860.79         -     -    18     -     -     -


 GPS
   CODE 98 P  1                 4     5     -     2     -     -      30
   54831.50 to 54860.50        50    50     -     9     -     -

   JPL  96 P  3                 9     9     -     5     -     -      30
   54831.50 to 54860.50        50    40     -    15     -     -

   GFZ  96 P  2                 3     3     -     0     -     -      30
   54831.50 to 54860.50        50    30     -    10     -     -

   ESOC 96 P  1                14    11     -     1     -     -      30
   54831.50 to 54860.50        40    40     -    12     -     -

   NOAA 96 P  1                 3     3     -    29     -     -      30
   54831.50 to 54860.50        80    90     -    17     -     -

   SIO  96 P  1                20    21     -     4     -     -      30
   54831.50 to 54860.50        40    40     -    12     -     -

   EMR  96 P  3                34    34     -     6     -     -      30
   54831.50 to 54860.50        60    40     -    11     -     -

   IAA   1 P  1                29    30     -     6     -     -      30
   54831.50 to 54860.50       100   140     -    26     -     -

   IGS  96 P  2 *              32    24     -     6     -     -      30
   54831.50 to 54860.50        50    30     -     7     -     -

   IGS   7 P  1 *              22    21     -     6     -     -      30
   54831.50 to 54860.50        30    20     -     7     -     -


 SLR
   MCC  97 L  1               163   151     -    20     -     -      31
   54831.00 to 54861.00       120   190     -    67     -     -

   IAA   2 L  1                42    40     -     2     -     -      31
   54831.00 to 54861.00       140   190     -    20     -     -

   ASI   3 L  2               100    92     -    16     -     -      30
   54831.50 to 54860.50       200   130     -    33     -     -

   ILRS  5 L  1 *              89    89     -    89     -     -      29
   54831.50 to 54860.50       140    80     -    42     -     -


 BULLETIN A
   NEOS 97 C  1                38    46     6     -     -     -      31
   54831.00 to 54861.00        30    30    12     -     -     -

