                                                                BULLETIN B 290
                                        			3 April 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      0.021    0.024    0.0103    0.056  0.077 
 
2012   2   2   55959   54.725  255.253 -450.4155    0.416 -0.138    0.019    0.020    0.0040  0.035  0.045
2012   2   3   55960   52.998  254.824 -450.8189    0.416 -0.134    0.019    0.018    0.0018  0.034  0.044
2012   2   4   55961   51.408  254.365 -451.2567    0.404 -0.161    0.019    0.018    0.0196  0.038  0.041
2012   2   5   55962   49.333  254.085 -451.7747    0.378 -0.204    0.019    0.020    0.0080  0.043  0.037
2012   2   6   55963   47.368  254.001 -452.4402    0.308 -0.278    0.022    0.023    0.0070  0.030  0.040
2012   2   7   55964   45.706  254.220 -453.3091    0.258 -0.330    0.022    0.023    0.0023  0.028  0.038
2012   2   8   55965   44.328  254.546 -454.4131    0.299 -0.339    0.021    0.022    0.0350  0.034  0.046
2012   2   9   55966   43.192  255.056 -455.7227    0.362 -0.331    0.021    0.022    0.0087  0.042  0.056
2012   2  10   55967   42.172  255.797 -457.1640    0.422 -0.316    0.021    0.022    0.0028  0.050  0.067
2012   2  11   55968   41.276  256.690 -458.6395    0.361 -0.304    0.021    0.022    0.0103  0.049  0.067
2012   2  12   55969   40.311  257.438 -460.0560    0.255 -0.290    0.021    0.022    0.0090  0.046  0.063
2012   2  13   55970   38.861  258.102 -461.3256    0.149 -0.272    0.022    0.025    0.0081  0.043  0.061
2012   2  14   55971   37.082  258.631 -462.3763    0.050 -0.258    0.022    0.025    0.0030  0.041  0.057
2012   2  15   55972   35.700  259.565 -463.1795    0.089 -0.259    0.021    0.024    0.0638  0.040  0.057
2012   2  16   55973   34.328  260.928 -463.7969    0.168 -0.266    0.021    0.024    0.0067  0.040  0.057
2012   2  17   55974   33.052  261.952 -464.3422    0.251 -0.278    0.021    0.024    0.0019  0.040  0.057
2012   2  18   55975   31.627  263.077 -464.9159    0.243 -0.280    0.021    0.024    0.0033  0.052  0.074
2012   2  19   55976   30.595  263.990 -465.5836    0.201 -0.280    0.021    0.024    0.0052  0.068  0.096
2012   2  20   55977   29.688  265.055 -466.3655    0.148 -0.275    0.023    0.028    0.0060  0.085  0.120
2012   2  21   55978   28.345  265.672 -467.2390    0.106 -0.277    0.023    0.028    0.0052  0.101  0.142
2012   2  22   55979   26.675  266.316 -468.1516    0.069 -0.276    0.022    0.027    0.0027  0.116  0.160
2012   2  23   55980   24.689  267.060 -469.0540    0.138 -0.287    0.022    0.027    0.0198  0.091  0.126
2012   2  24   55981   22.814  267.829 -469.8906    0.232 -0.299    0.022    0.027    0.0016  0.055  0.076
2012   2  25   55982   21.568  268.920 -470.6253    0.242 -0.344    0.022    0.027    0.0028  0.049  0.068
2012   2  26   55983   20.597  270.273 -471.2585    0.213 -0.396    0.022    0.027    0.0063  0.055  0.076
2012   2  27   55984   20.119  271.192 -471.8084    0.167 -0.441    0.027    0.030    0.0069  0.061  0.083
2012   2  28   55985   19.720  271.968 -472.2734    0.125 -0.477    0.027    0.030    0.0024  0.067  0.091
2012   2  29   55986   19.069  273.018 -472.6379    0.115 -0.438    0.026    0.030    0.0356  0.085  0.127
2012   3   1   55987   18.798  274.244 -472.9194    0.113 -0.373    0.023    0.025    0.0086  0.113  0.171

 Preliminary extension 
2012   3   2   55988   18.937  275.646 -473.1884    0.111 -0.303    0.023    0.025    0.0040  0.141  0.216
2012   3   3   55989   18.563  277.173 -473.5285    0.089 -0.259    0.023    0.025    0.0039  0.136  0.192
2012   3   4   55990   17.782  278.172 -473.9946    0.063 -0.232    0.023    0.025    0.0043  0.120  0.144
2012   3   5   55991   17.387  279.057 -474.6191    0.063 -0.317    0.021    0.024    0.0040  0.114  0.146
2012   3   6   55992   16.938  279.996 -475.4440    0.053 -0.354    0.021    0.024    0.0023  0.103  0.126
2012   3   7   55993   15.711  280.782 -476.4776    0.055 -0.364    0.021    0.024    0.0252  0.088  0.106
2012   3   8   55994   14.416  281.461 -477.6973    0.063 -0.374    0.021    0.024    0.0109  0.072  0.087
2012   3   9   55995   13.217  282.528 -479.0665    0.075 -0.387    0.021    0.024    0.0027  0.056  0.068
2012   3  10   55996   12.114  283.778 -480.5270    0.087 -0.402    0.021    0.024    0.0048  0.054  0.065
2012   3  11   55997   11.079  285.002 -481.9953    0.097 -0.406    0.021    0.024    0.0064  0.056  0.069
2012   3  12   55998    9.707  286.325 -483.3721    0.105 -0.393    0.021    0.024    0.0079  0.059  0.073
2012   3  13   55999    8.702  287.416 -484.6154    0.111 -0.356    0.021    0.024    0.0079  0.062  0.077
2012   3  14   56000    7.795  288.846 -485.7657    0.114 -0.296    0.021    0.024    0.0023  0.065  0.081
2012   3  15   56001    6.387  290.093 -486.8837    0.123 -0.266    0.021    0.024    0.0236  0.051  0.067
2012   3  16   56002    4.972  291.300 -488.0520    0.132 -0.238    0.021    0.024    0.0022  0.032  0.048
2012   3  17   56003    3.394  292.458 -489.3544    0.000  0.000    0.021    0.024    0.0059  0.056  0.067
2012   3  18   56004    1.692  293.815 -490.8020    0.000  0.000    0.241    0.184    0.0097  0.066  0.076
2012   3  19   56005   -0.054  295.085 -492.3455    0.000  0.000    0.538    0.333    0.0088  0.066  0.076
2012   3  20   56006   -1.469  296.035 -493.9276    0.000  0.000    0.442    0.323    0.0096  0.066  0.076
2012   3  21   56007   -2.611  296.973 -495.4881    0.000  0.000    0.308    0.383    0.0091  0.066  0.076
2012   3  22   56008   -3.622  298.226 -496.9867    0.000  0.000    0.423    0.373    0.0137  0.066  0.076
2012   3  23   56009   -4.436  299.599 -498.4049    0.000  0.000    0.346    0.353    0.0171  0.066  0.076
2012   3  24   56010   -4.625  300.932 -499.7477    0.000  0.000    0.192    0.393    0.0089  0.066  0.076
2012   3  25   56011   -5.009  302.625 -501.0078    0.000  0.000    0.240    0.313    0.0063  0.066  0.076
2012   3  26   56012   -5.755  304.037 -502.1569    0.000  0.000    0.250    0.252    0.0090  0.066  0.076
2012   3  27   56013   -6.636  305.084 -503.2237    0.000  0.000    0.384    0.252    0.0086  0.066  0.076
2012   3  28   56014   -7.581  305.847 -504.2438    0.000  0.000    0.520    0.278    0.0053  0.066  0.076
2012   3  29   56015   -8.083  307.026 -505.2299    0.000  0.000    0.448    0.289    0.0077  0.066  0.076
2012   3  30   56016   -8.814  308.790 -506.2531    0.000  0.000    0.425    0.253    0.0077  0.066  0.076
2012   3  31   56017   -9.450  310.631 -507.3779    0.000  0.000    0.574    0.313    0.0027  0.066  0.076
2012   4   1   56018  -10.338  312.829 -508.5859    0.000  0.000    0.505    0.374    0.0143  0.066  0.076
 
	
 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   2   2   55959   -70.618    -8.208     0.088     0.045
2012   2   3   55960   -70.535    -8.318     0.085     0.044
2012   2   4   55961   -70.586    -8.381     0.095     0.041
2012   2   5   55962   -70.709    -8.487     0.109     0.037
2012   2   6   55963   -70.832    -8.724     0.075     0.040
2012   2   7   55964   -70.689    -8.950     0.071     0.038
2012   2   8   55965   -70.179    -8.960     0.085     0.046
2012   2   9   55966   -69.728    -8.708     0.105     0.056
2012   2  10   55967   -69.623    -8.355     0.125     0.067
2012   2  11   55968   -70.131    -8.143     0.124     0.067
2012   2  12   55969   -70.807    -8.168     0.116     0.063
2012   2  13   55970   -71.300    -8.335     0.109     0.061
2012   2  14   55971   -71.577    -8.509     0.103     0.057
2012   2  15   55972   -71.479    -8.660     0.101     0.057
2012   2  16   55973   -71.388    -8.834     0.100     0.057
2012   2  17   55974   -71.338    -9.063     0.100     0.057
2012   2  18   55975   -71.389    -9.269     0.130     0.074
2012   2  19   55976   -71.323    -9.340     0.172     0.096
2012   2  20   55977   -71.203    -9.216     0.213     0.120
2012   2  21   55978   -71.159    -8.985     0.254     0.142
2012   2  22   55979   -71.247    -8.806     0.291     0.160
2012   2  23   55980   -71.124    -8.826     0.229     0.126
2012   2  24   55981   -70.922    -9.030     0.138     0.076
2012   2  25   55982   -70.943    -9.327     0.123     0.068
2012   2  26   55983   -71.081    -9.570     0.139     0.076
2012   2  27   55984   -71.209    -9.738     0.154     0.083
2012   2  28   55985   -71.207    -9.928     0.169     0.091
2012   2  29   55986   -71.063   -10.135     0.213     0.127
2012   3   1   55987   -70.954   -10.328     0.284     0.171

 
 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   2   2   55959  0.3937  0.0015  15.04106711013    0.00000000026 
2012   2   3   55960  0.4269  0.0015  15.04106710435    0.00000000026 
2012   2   4   55961  0.4943  0.0015  15.04106709262    0.00000000026 
2012   2   5   55962  0.5607  0.0015  15.04106708106    0.00000000026 
2012   2   6   55963  0.7546  0.0017  15.04106704730    0.00000000030 
2012   2   7   55964  0.9995  0.0017  15.04106700467    0.00000000030 
2012   2   8   55965  1.2229  0.0016  15.04106696578    0.00000000028 
2012   2   9   55966  1.3892  0.0016  15.04106693683    0.00000000028 
2012   2  10   55967  1.4757  0.0016  15.04106692177    0.00000000028 
2012   2  11   55968  1.4643  0.0016  15.04106692376    0.00000000028 
2012   2  12   55969  1.3481  0.0014  15.04106694398    0.00000000024 
2012   2  13   55970  1.1742  0.0012  15.04106697426    0.00000000021 
2012   2  14   55971  0.9157  0.0012  15.04106701926    0.00000000021 
2012   2  15   55972  0.6923  0.0012  15.04106705815    0.00000000021 
2012   2  16   55973  0.5548  0.0012  15.04106708209    0.00000000021 
2012   2  17   55974  0.5356  0.0012  15.04106708543    0.00000000021 
2012   2  18   55975  0.6173  0.0012  15.04106707121    0.00000000021 
2012   2  19   55976  0.7289  0.0014  15.04106705178    0.00000000024 
2012   2  20   55977  0.8446  0.0018  15.04106703164    0.00000000031 
2012   2  21   55978  0.8971  0.0018  15.04106702250    0.00000000031 
2012   2  22   55979  0.9304  0.0018  15.04106701670    0.00000000031 
2012   2  23   55980  0.8475  0.0018  15.04106703113    0.00000000031 
2012   2  24   55981  0.7513  0.0018  15.04106704788    0.00000000031 
2012   2  25   55982  0.6815  0.0018  15.04106706003    0.00000000031 
2012   2  26   55983  0.5631  0.0018  15.04106708064    0.00000000031 
2012   2  27   55984  0.5016  0.0019  15.04106709135    0.00000000033 
2012   2  28   55985  0.4154  0.0019  15.04106710635    0.00000000033 
2012   2  29   55986  0.3138  0.0019  15.04106712404    0.00000000033 
2012   3   1   55987  0.2463  0.0022  15.04106713579    0.00000000038 


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

     No leap second introduced during period [55959-55987]

     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               151   137     6     -   112   110       7
   55960.27 to 55985.21       406   230     7     -   242   223

   BKG   8 R  2                93    88     3     -    58    54       8
   55960.27 to 55985.21       196   192     3     -    25    20

   GSFC  9 R  4                74    66     3     8    54    52       8
   55960.27 to 55985.21       230   159     5    10    40     7

   IAA   5 R  2                82    79     3     -    60    59       8
   55960.27 to 55985.21       105    87     8     -    59    40

   IAA   5 R  2                82    79     3     -    60    59       8
   55960.27 to 55985.21       105    87     8     -    59    40

   USNO 10 R  1                79    70     3     -    59    56       8
   55960.27 to 55985.21       149    65     7     -    19    41

   MAO   3 R  1               134   109     4     -    50    51       8
   55960.32 to 55985.22       341   186     8     -   114    45

   IVS   2 R  1 *              51    42     2     -    14    39       8
   55960.27 to 55985.21       220    99     1     -    16     8


 VLBI Intensive
   BKG   3 R  2 *               -     -    11     -     -     -      26
   55960.80 to 55986.79         -     -    19     -     -     -

   GSFC  9 R  2 *               -     -    13     -     -     -      26
   55960.80 to 55986.79         -     -    24     -     -     -

   IAA   5 R  1 *               -     -   106     -     -     -      14
   55960.80 to 55986.79         -     -    14     -     -     -

   PUL  10 R  0                 -     -    17     -     -     -      10
   55960.80 to 55977.31         -     -    13     -     -     -

   USNO  5 R  1 *               -     -    21     -     -     -      21
   55960.80 to 55986.79         -     -    23     -     -     -


 GPS
   CODE 98 P  1                 5     5     -     2     -     -      28
   55959.50 to 55986.50        19    13     -     9     -     -

   JPL  96 P  3                 9    11     -     5     -     -      28
   55959.50 to 55986.50        27    32     -    12     -     -

   GFZ  96 P  2                 5     6     -     1     -     -      28
   55959.50 to 55986.50        27    30     -    10     -     -

   ESOC 96 P  1                15    13     -     1     -     -      28
   55959.50 to 55986.50        68    31     -    10     -     -

   NOAA 96 P  1                 2     3     -     0     -     -      28
   55959.50 to 55986.50        44    33     -     7     -     -

   SIO  96 P  1                17    18     -     4     -     -      28
   55959.50 to 55986.50        31    25     -    16     -     -

   EMR  96 P  3                34    35     -     6     -     -      28
   55959.50 to 55986.50        34    44     -    16     -     -

   IAA   1 P  1                28    37     -     6     -     -      28
   55959.50 to 55986.50        96   164     -    30     -     -

   IGR  96 P  2 *              29    29     -     4     -     -      28
   55959.50 to 55986.50        28    25     -     8     -     -

   IGS   7 P  1 *               5     4     -     0     -     -      28
   55959.50 to 55986.50        19    18     -     7     -     -


 SLR
   MCC  97 L  1               172   185     -    22     -     -      25
   55959.00 to 55987.00       110   145     -   103     -     -

   IAA   2 L  1                40    41     -     2     -     -      29
   55959.00 to 55987.00       134   158     -    18     -     -

   CGS   3 L  2                72    76     -    16     -     -      28
   55959.50 to 55986.50       176   195     -    44     -     -

   PUL  10 L  0                41    42     -     2     -     -      28
   55959.54 to 55986.36       139    82     -    17     -     -

   ILRS  5 L  1 *              66    62     -    10     -     -      28
   55959.50 to 55986.50       195   133     -    31     -     -


 BULLETIN A
   NEOS 97 C  1                26    23     7     -     -     -      29
   55959.00 to 55987.00        18    24    18     -     -     -

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