                                                                BULLETIN B 292
                                        			1 June 2012   
    
 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). 
 Upgraded solution from February 1 2011 - consistent with ITRF 2008.
 
       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    0.023    0.0084    0.049  0.074 
 
2012   4   2   56019  -11.351  314.853 -509.8935    0.136 -0.317    0.020    0.023    0.0059  0.068  0.114
2012   4   3   56020  -12.264  316.855 -511.4393    0.140 -0.253    0.020    0.023    0.0029  0.068  0.121
2012   4   4   56021  -12.896  318.655 -513.1549    0.264 -0.234    0.019    0.022    0.0241  0.072  0.128
2012   4   5   56022  -13.364  320.312 -514.9928    0.415 -0.232    0.019    0.022    0.0019  0.076  0.134
2012   4   6   56023  -13.715  322.168 -516.8595    0.421 -0.251    0.019    0.022    0.0202  0.072  0.129
2012   4   7   56024  -13.652  324.149 -518.6314    0.362 -0.280    0.021    0.022    0.0088  0.066  0.120
2012   4   8   56025  -13.097  325.975 -520.2021    0.289 -0.309    0.021    0.022    0.0079  0.060  0.110
2012   4   9   56026  -12.284  327.886 -521.5395    0.207 -0.296    0.020    0.023    0.0069  0.053  0.102
2012   4  10   56027  -11.627  330.100 -522.6753    0.112 -0.322    0.020    0.023    0.0046  0.047  0.093
2012   4  11   56028  -10.886  332.532 -523.6983    0.018 -0.346    0.020    0.022    0.0028  0.038  0.083
2012   4  12   56029   -9.896  334.821 -524.7296   -0.003 -0.367    0.020    0.022    0.0184  0.027  0.058
2012   4  13   56030   -8.876  337.102 -525.8404    0.004 -0.382    0.020    0.022    0.0026  0.014  0.029
2012   4  14   56031   -8.011  339.146 -527.0311    0.001 -0.389    0.020    0.022    0.0041  0.014  0.028
2012   4  15   56032   -7.230  341.115 -528.2793    0.002 -0.387    0.020    0.022    0.0066  0.019  0.037
2012   4  16   56033   -6.329  342.951 -529.5673    0.012 -0.375    0.020    0.023    0.0048  0.027  0.047
2012   4  17   56034   -5.199  344.926 -530.8783    0.030 -0.365    0.020    0.023    0.0015  0.033  0.056
2012   4  18   56035   -4.236  347.145 -532.1965    0.049 -0.340    0.022    0.024    0.0216  0.035  0.059
2012   4  19   56036   -3.430  349.499 -533.4911    0.068 -0.312    0.022    0.024    0.0034  0.036  0.061
2012   4  20   56037   -2.859  351.929 -534.7248    0.088 -0.285    0.022    0.024    0.0015  0.038  0.064
2012   4  21   56038   -2.364  354.154 -535.8613    0.084 -0.298    0.022    0.024    0.0184  0.034  0.058
2012   4  22   56039   -1.494  356.002 -536.8881    0.070 -0.325    0.022    0.024    0.0048  0.029  0.048
2012   4  23   56040   -0.272  357.958 -537.8074    0.053 -0.345    0.022    0.026    0.0056  0.024  0.040
2012   4  24   56041    0.653  359.920 -538.6339    0.033 -0.357    0.022    0.026    0.0020  0.018  0.030
2012   4  25   56042    1.379  361.760 -539.4047    0.097 -0.332    0.021    0.026    0.0238  0.051  0.046
2012   4  26   56043    2.156  363.391 -540.1645    0.179 -0.290    0.021    0.026    0.0078  0.095  0.069
2012   4  27   56044    3.382  364.806 -540.9514    0.255 -0.242    0.021    0.026    0.0102  0.138  0.091
2012   4  28   56045    4.355  366.218 -541.7935    0.002  0.002    0.021    0.026    0.0085  0.087  0.081
2012   4  29   56046    5.295  367.419 -542.7026    0.002  0.002    0.021    0.026    0.0075  0.065  0.075
2012   4  30   56047    6.321  368.720 -543.6860   -0.016 -0.254    0.022    0.027    0.0081  0.034  0.061
2012   5   1   56048    7.701  369.896 -544.8627   -0.072 -0.241    0.022    0.027    0.0060  0.034  0.061

 Preliminary extension 
2012   5   2   56049    9.214  370.867 -546.2259   -0.130 -0.252    0.021    0.026    0.0038  0.039  0.071
2012   5   3   56050   10.546  371.897 -547.6981   -0.174 -0.257    0.021    0.026    0.0011  0.042  0.076
2012   5   4   56051   11.863  373.233 -549.1911   -0.124 -0.430    0.021    0.026    0.0003  0.029  0.053
2012   5   5   56052   13.328  374.713 -550.5806   -0.128 -0.496    0.021    0.026    0.0124  0.029  0.050
2012   5   6   56053   15.115  376.289 -551.9143   -0.156 -0.490    0.021    0.026    0.0108  0.035  0.058
2012   5   7   56054   16.309  378.011 -552.9810   -0.174 -0.461    0.021    0.026    0.0092  0.041  0.065
2012   5   8   56055   16.993  379.382 -553.8805   -0.186 -0.416    0.021    0.026    0.0026  0.047  0.073
2012   5   9   56056   17.572  380.760 -554.6776   -0.160 -0.376    0.021    0.026    0.0081  0.041  0.066
2012   5  10   56057   17.686  381.909 -555.5656   -0.125 -0.340    0.021    0.026    0.0090  0.033  0.056
2012   5  11   56058   17.785  382.708 -556.4992   -0.094 -0.310    0.021    0.026    0.0020  0.025  0.047
2012   5  12   56059   18.353  383.357 -557.4671   -0.056 -0.308    0.021    0.026    0.0141  0.023  0.043
2012   5  13   56060   19.705  384.056 -558.5130   -0.020 -0.327    0.235    0.226    0.0125  0.022  0.042
2012   5  14   56061   21.572  384.753 -559.5735    0.011 -0.358    0.468    0.587    0.0094  0.022  0.042
2012   5  15   56062   23.684  385.607 -560.6098    0.039 -0.400    0.403    0.587    0.0022  0.021  0.041
2012   5  16   56063   25.894  386.717 -561.7410    0.002  0.002    0.346    0.427    0.0140  0.053  0.067
2012   5  17   56064   27.809  387.515 -562.6897    0.002  0.002    0.365    0.427    0.0085  0.062  0.074
2012   5  18   56065   29.246  388.341 -563.5715    0.003  0.002    0.309    0.405    0.0112  0.062  0.074
2012   5  19   56066   30.370  388.904 -564.3492    0.002  0.002    0.384    0.331    0.0075  0.062  0.074
2012   5  20   56067   31.447  389.087 -564.9620    0.002  0.002    0.562    0.235    0.0075  0.062  0.074
2012   5  21   56068   32.296  389.305 -565.4147    0.002  0.002    0.581    0.309    0.0149  0.062  0.074
2012   5  22   56069   33.207  389.762 -565.7978    0.002  0.002    0.459    0.299    0.0166  0.062  0.074
2012   5  23   56070   34.235  390.529 -566.1772    0.002  0.002    0.356    0.224    0.0110  0.062  0.074
2012   5  24   56071   35.498  391.209 -566.5770    0.003  0.002    0.506    0.256    0.0109  0.062  0.074
2012   5  25   56072   37.084  391.903 -567.0770    0.002  0.002    0.581    0.299    0.0167  0.062  0.074
2012   5  26   56073   39.123  392.491 -567.6668    0.002  0.002    0.468    0.320    0.0300  0.062  0.074
2012   5  27   56074   41.110  393.193 -568.3988    0.002  0.002    0.482    0.241    0.0171  0.062  0.074
2012   5  28   56075   42.927  393.829 -569.2742    0.002  0.002    0.560    0.382    0.0199  0.062  0.074
2012   5  29   56076   44.677  394.672 -570.2812    0.002  0.002    0.649    0.472    0.0225  0.062  0.074
2012   5  30   56077   45.682  395.484 -571.4023    0.003  0.002    0.828    0.459    0.0775  0.062  0.074
2012   5  31   56078   46.228  396.072 -572.5942    0.002  0.002    1.119    1.147    0.0775  0.062  0.074
2012   6   1   56079   46.821  396.748 -573.7070    0.002  0.002  999.000  999.000  999.0000 999.000 999.000
 
	
 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   

2012   4   2   56019   -69.044   -11.671     0.170     0.114
2012   4   3   56020   -68.888   -11.732     0.172     0.121
2012   4   4   56021   -68.517   -11.861     0.181     0.128
2012   4   5   56022   -68.109   -11.757     0.191     0.134
2012   4   6   56023   -68.172   -11.479     0.182     0.129
2012   4   7   56024   -68.553   -11.351     0.166     0.120
2012   4   8   56025   -68.998   -11.551     0.150     0.110
2012   4   9   56026   -69.332   -11.878     0.134     0.102
2012   4  10   56027   -69.558   -12.167     0.117     0.093
2012   4  11   56028   -69.704   -12.337     0.095     0.083
2012   4  12   56029   -69.650   -12.469     0.067     0.058
2012   4  13   56030   -69.590   -12.572     0.035     0.029
2012   4  14   56031   -69.688   -12.588     0.036     0.028
2012   4  15   56032   -69.826   -12.527     0.049     0.037
2012   4  16   56033   -69.808   -12.453     0.068     0.047
2012   4  17   56034   -69.582   -12.394     0.082     0.056
2012   4  18   56035   -69.315   -12.287     0.087     0.059
2012   4  19   56036   -69.164   -12.148     0.091     0.061
2012   4  20   56037   -69.155   -12.089     0.095     0.064
2012   4  21   56038   -69.261   -12.258     0.086     0.058
2012   4  22   56039   -69.339   -12.593     0.072     0.048
2012   4  23   56040   -69.290   -12.913     0.060     0.040
2012   4  24   56041   -69.134   -13.105     0.046     0.030
2012   4  25   56042   -68.805   -13.171     0.129     0.046
2012   4  26   56043   -68.635   -13.204     0.238     0.069
2012   4  27   56044   -68.636   -13.182     0.347     0.091
2012   4  28   56045   -69.335   -12.819     0.219     0.081
2012   4  29   56046   -69.078   -12.569     0.163     0.075
2012   4  30   56047   -68.707   -12.625     0.086     0.061
2012   5   1   56048   -68.608   -12.605     0.086     0.061

 
 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

2012   4   2   56019  1.4645  0.0023  15.04106692372    0.00000000040 
2012   4   3   56020  1.6464  0.0023  15.04106689205    0.00000000040 
2012   4   4   56021  1.7876  0.0023  15.04106686747    0.00000000040 
2012   4   5   56022  1.8599  0.0023  15.04106685489    0.00000000040 
2012   4   6   56023  1.8563  0.0023  15.04106685551    0.00000000040 
2012   4   7   56024  1.6680  0.0023  15.04106688829    0.00000000040 
2012   4   8   56025  1.4264  0.0023  15.04106693035    0.00000000040 
2012   4   9   56026  1.2179  0.0023  15.04106696665    0.00000000040 
2012   4  10   56027  1.0577  0.0023  15.04106699454    0.00000000040 
2012   4  11   56028  0.9927  0.0022  15.04106700585    0.00000000038 
2012   4  12   56029  1.0518  0.0022  15.04106699557    0.00000000038 
2012   4  13   56030  1.1597  0.0022  15.04106697678    0.00000000038 
2012   4  14   56031  1.2156  0.0022  15.04106696705    0.00000000038 
2012   4  15   56032  1.2592  0.0022  15.04106695946    0.00000000038 
2012   4  16   56033  1.3069  0.0024  15.04106695116    0.00000000042 
2012   4  17   56034  1.3224  0.0024  15.04106694846    0.00000000042 
2012   4  18   56035  1.3050  0.0024  15.04106695149    0.00000000042 
2012   4  19   56036  1.2692  0.0024  15.04106695772    0.00000000042 
2012   4  20   56037  1.1976  0.0024  15.04106697018    0.00000000042 
2012   4  21   56038  1.0735  0.0024  15.04106699179    0.00000000042 
2012   4  22   56039  0.9847  0.0024  15.04106700725    0.00000000042 
2012   4  23   56040  0.8768  0.0102  15.04106702603    0.00000000178 
2012   4  24   56041  0.7777  0.0102  15.04106704328    0.00000000178 
2012   4  25   56042  0.7599  0.0100  15.04106704638    0.00000000174 
2012   4  26   56043  0.7562  0.0100  15.04106704703    0.00000000174 
2012   4  27   56044  0.8113  0.0100  15.04106703743    0.00000000174 
2012   4  28   56045  0.8890  0.0099  15.04106702391    0.00000000172 
2012   4  29   56046  0.9543  0.0099  15.04106701254    0.00000000172 
2012   4  30   56047  1.0777  0.0104  15.04106699106    0.00000000181 
2012   5   1   56048  1.2836  0.0104  15.04106695521    0.00000000181 


 4 - INFORMATION ON TIME SCALES 
     
     TAI - UTC = 34 s.

     No leap second introduced during period [56019-56048]

     Next leap second will be introduced on  1 July 2012

     All information concerning time scales : 
	 - leap seconds announcements : Bulletin C 
	 - DUT1 announcements (UT1-UTC with 0.1 s 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               154   125     5     -   108   119       8
   56020.21 to 56044.27       229   368    15     -    51   214

   BKG   8 R  2               124   112     4     -    72    75       8
   56020.21 to 56044.27       122   160     4     -    17    36

   GSFC  9 R  4                83    70     3     7    59    62       8
   56020.21 to 56044.27       210   213     9     7    61    23

   IAA   5 R  2                90    84     3     -    61    63       8
   56020.21 to 56044.27       174   107     4     -    64    61

   IAA   5 R  2                90    84     3     -    61    63       8
   56020.21 to 56044.27       174   107     4     -    64    61

   USNO 10 R  1                96    80     3     -    76    76       8
   56020.21 to 56044.27       134   152     2     -    73    64

   MAO   3 R  1               130   101     4     -    70    70       8
   56020.14 to 56044.28       205   139    10     -    74    99

   IVS   2 R  1 *              54    42     2     -    13    41       8
   56020.21 to 56044.27       200    77     3     -    11     4


 VLBI Intensive
   BKG   3 R  2 *               -     -    11     -     -     -      29
   56019.79 to 56047.31         -     -    17     -     -     -

   GSFC  9 R  2 *               -     -    16     -     -     -      29
   56019.79 to 56047.31         -     -    22     -     -     -

   IAA   5 R  1 *               -     -    12     -     -     -      20
   56019.79 to 56044.80         -     -    18     -     -     -

   PUL  10 R  0                 -     -    14     -     -     -      22
   56019.79 to 56047.31         -     -    20     -     -     -

   USNO  5 R  1 *               -     -    31     -     -     -      23
   56019.79 to 56047.31         -     -    17     -     -     -


 GPS
   CODE 98 P  1                 5     5     -     2     -     -      29
   56019.50 to 56047.50        19    13     -    12     -     -

   JPL  96 P  3                 9    11     -     5     -     -      29
   56019.50 to 56047.50        43    25     -    11     -     -

   GFZ  96 P  2                 5     5     -     1     -     -      29
   56019.50 to 56047.50        20    22     -    10     -     -

   ESOC 96 P  1                18    15     -     1     -     -      29
   56019.50 to 56047.50        37    21     -    11     -     -

   NOAA 96 P  1                 3     3     -     0     -     -      29
   56019.50 to 56047.50        34    69     -     6     -     -

   SIO  96 P  1                14    14     -     4     -     -      29
   56019.50 to 56047.50        23    23     -     9     -     -

   EMR  96 P  3                34    35     -     6     -     -      29
   56019.50 to 56047.50        27    34     -    10     -     -

   IAA   1 P  1                29    37     -     6     -     -      29
   56019.50 to 56047.50        96   173     -    32     -     -

   IGR  96 P  2 *              23    18     -     4     -     -      29
   56019.50 to 56047.50        15    20     -     7     -     -

   IGS   7 P  1 *               5     5     -     1     -     -      29
   56019.50 to 56047.50        10    11     -     9     -     -


 SLR
   MCC  97 L  1               143   152     -    22     -     -      26
   56019.00 to 56048.00       158   144     -   168     -     -

   IAA   2 L  1                38    39     -     2     -     -      30
   56019.00 to 56048.00       199   123     -    16     -     -

   CGS   3 L  2                69    70     -    15     -     -      29
   56019.50 to 56047.50       165   208     -    48     -     -

   PUL  10 L  0                37    38     -     2     -     -      29
   56019.32 to 56047.93       138    95     -    16     -     -

   ILRS  5 L  1 *              53    55     -     9     -     -      29
   56019.50 to 56047.50       131   163     -    35     -     -


 BULLETIN A
   NEOS 97 C  1                26    26     5     -     -     -      30
   56019.00 to 56048.00        18    14    11     -     -     -

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