                                                                BULLETIN B 288
                                        			1 February 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      0.018    0.020    0.0055    0.086  0.129 
 
2011  12   2   55897  160.523  284.037 -387.7325    0.297  0.139    0.017    0.018    0.0013  0.027  0.036
2011  12   3   55898  160.126  283.224 -388.9094    0.332  0.148    0.017    0.020    0.0022  0.027  0.036
2011  12   4   55899  159.780  282.234 -390.0109    0.366  0.160    0.017    0.020    0.0031  0.026  0.034
2011  12   5   55900  159.498  281.546 -391.0159    0.392  0.172    0.019    0.020    0.0031  0.025  0.032
2011  12   6   55901  158.879  281.124 -391.9309    0.408  0.182    0.018    0.020    0.0014  0.024  0.030
2011  12   7   55902  157.695  280.548 -392.6990    0.365  0.165    0.018    0.020    0.0188  0.033  0.040
2011  12   8   55903  156.075  279.858 -393.3303    0.303  0.142    0.018    0.020    0.0042  0.043  0.051
2011  12   9   55904  154.586  279.027 -393.9013    0.239  0.121    0.018    0.020    0.0017  0.054  0.063
2011  12  10   55905  153.975  278.268 -394.4609    0.253  0.131    0.019    0.020    0.0024  0.066  0.086
2011  12  11   55906  152.946  277.793 -395.0130    0.297  0.154    0.019    0.020    0.0031  0.079  0.113
2011  12  12   55907  152.122  277.134 -395.5934    0.342  0.176    0.019    0.020    0.0031  0.092  0.140
2011  12  13   55908  151.257  276.507 -396.2759    0.387  0.197    0.019    0.020    0.0028  0.104  0.167
2011  12  14   55909  149.943  276.031 -397.1234    0.327  0.190    0.019    0.020    0.0200  0.092  0.146
2011  12  15   55910  148.412  275.427 -398.1620    0.242  0.172    0.019    0.020    0.0022  0.073  0.112
2011  12  16   55911  147.197  274.874 -399.3830    0.159  0.149    0.019    0.020    0.0013  0.053  0.079
2011  12  17   55912  145.681  274.731 -400.7753    0.187  0.128    0.019    0.020    0.0022  0.046  0.066
2011  12  18   55913  144.383  274.584 -402.2345    0.258  0.104    0.019    0.020    0.0031  0.043  0.060
2011  12  19   55914  142.680  274.384 -403.7276    0.332  0.076    0.019    0.020    0.0031  0.039  0.055
2011  12  20   55915  140.327  273.271 -405.1147    0.407  0.044    0.019    0.020    0.0017  0.036  0.049
2011  12  21   55916  138.124  271.971 -406.3581    0.334  0.025    0.019    0.020    0.0310  0.064  0.099
2011  12  22   55917  135.795  270.784 -407.3918    0.226  0.009    0.019    0.020    0.0029  0.100  0.164
2011  12  23   55918  134.133  269.652 -408.2160    0.231 -0.033    0.019    0.020    0.0026  0.118  0.191
2011  12  24   55919  132.693  268.659 -408.9480    0.282 -0.082    0.019    0.020    0.0022  0.128  0.203
2011  12  25   55920  131.411  267.980 -409.7440    0.340 -0.126    0.019    0.020    0.0022  0.140  0.215
2011  12  26   55921  129.575  267.432 -410.7022    0.402 -0.161    0.019    0.020    0.0022  0.151  0.227
2011  12  27   55922  127.687  266.757 -411.8681    0.465 -0.187    0.019    0.020    0.0022  0.162  0.239
2011  12  28   55923  126.148  266.352 -413.2189    0.526 -0.202    0.019    0.020    0.0038  0.173  0.252
2011  12  29   55924  124.444  265.677 -414.6747    0.537 -0.169    0.019    0.021    0.0238  0.176  0.268
2011  12  30   55925  122.715  264.897 -416.2016    0.527 -0.119    0.019    0.021    0.0034  0.179  0.283
2011  12  31   55926  120.760  264.166 -417.6734    0.525 -0.087    0.019    0.021    0.0065  0.160  0.257
2012   1   1   55927  118.700  263.209 -419.0307    0.520 -0.064    0.019    0.021    0.0070  0.134  0.215

 Preliminary extension 
2012   1   2   55928  117.478  262.407 -420.2660    0.506 -0.044    0.018    0.020    0.0043  0.107  0.169
2012   1   3   55929  115.947  261.649 -421.3914    0.487 -0.035    0.018    0.020    0.0046  0.080  0.127
2012   1   4   55930  114.540  260.618 -422.3894    0.463 -0.036    0.018    0.020    0.0024  0.054  0.086
2012   1   5   55931  113.267  260.201 -423.2747    0.424 -0.073    0.018    0.020    0.0139  0.074  0.119
2012   1   6   55932  111.432  259.931 -424.0546    0.381 -0.124    0.018    0.020    0.0031  0.106  0.171
2012   1   7   55933  108.888  259.665 -424.7816    0.358 -0.148    0.018    0.020    0.0036  0.106  0.167
2012   1   8   55934  106.423  258.873 -425.5338    0.342 -0.159    0.018    0.020    0.0056  0.094  0.141
2012   1   9   55935  104.240  258.049 -426.3671    0.324 -0.165    0.018    0.020    0.0056  0.082  0.116
2012   1  10   55936  101.771  257.244 -427.2869    0.303 -0.164    0.018    0.020    0.0024  0.070  0.091
2012   1  11   55937   99.791  256.002 -428.3510    0.307 -0.203    0.018    0.020    0.0148  0.080  0.107
2012   1  12   55938   98.367  255.057 -429.5937    0.312 -0.245    0.018    0.020    0.0040  0.095  0.133
2012   1  13   55939   97.337  254.480 -431.0037    0.312 -0.275    0.018    0.020    0.0028  0.110  0.160
2012   1  14   55940   96.126  254.329 -432.5193    0.299 -0.264    0.018    0.020    0.0058  0.107  0.156
2012   1  15   55941   94.909  254.362 -434.0228    0.284 -0.238    0.333    0.158    0.0078  0.097  0.141
2012   1  16   55942   93.600  254.518 -435.4245    0.276 -0.214    0.523    0.279    0.0057  0.088  0.126
2012   1  17   55943   91.760  254.930 -436.6652    0.277 -0.197    0.365    0.419    0.0033  0.078  0.110
2012   1  18   55944   89.613  254.803 -437.7217    0.288 -0.186    0.332    0.468    0.0021  0.069  0.095
2012   1  19   55945   87.418  254.487 -438.5832    0.003  0.003    0.407    0.485    0.0219  0.073  0.081
2012   1  20   55946   85.441  254.166 -439.3079    0.002  0.002    0.556    0.690    0.0083  0.075  0.079
2012   1  21   55947   83.296  254.636 -440.0126    0.002  0.002    0.548    0.559    0.0063  0.075  0.079
2012   1  22   55948   80.693  254.985 -440.7804    0.003  0.003    0.415    0.452    0.0042  0.075  0.079
2012   1  23   55949   78.631  255.064 -441.6780    0.002  0.003    0.432    0.501    0.0072  0.075  0.079
2012   1  24   55950   76.583  255.640 -442.7122    0.002  0.002    0.457    0.378    0.0100  0.075  0.079
2012   1  25   55951   74.231  255.833 -443.8449    0.002  0.002    0.436    0.303    0.0076  0.075  0.079
2012   1  26   55952   71.923  256.078 -444.9624    0.002  0.002    0.456    0.344    0.0103  0.075  0.079
2012   1  27   55953   69.371  256.174 -446.0121    0.002  0.002    0.476    0.452    0.0188  0.075  0.079
2012   1  28   55954   66.836  256.274 -447.0643    0.002  0.002    0.417    0.422    0.0296  0.075  0.079
2012   1  29   55955   64.213  256.196 -447.9882    0.002  0.002    0.327    0.304    0.0416  0.075  0.079
2012   1  30   55956   62.347  256.180 -448.7775    0.002  0.002    0.271    0.227    0.0889  0.075  0.079
2012   1  31   55957   61.240  256.469 -449.5318    0.002  0.002    0.224    0.179    0.0516  0.075  0.079
2012   2   1   55958   60.241  256.783 -450.0988    0.002  0.003  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   

2011  12   2   55897   -71.444    -8.170     0.067     0.036
2011  12   3   55898   -71.473    -8.104     0.067     0.036
2011  12   4   55899   -71.393    -8.028     0.065     0.034
2011  12   5   55900   -71.313    -7.920     0.063     0.032
2011  12   6   55901   -71.320    -7.785     0.060     0.030
2011  12   7   55902   -71.503    -7.705     0.082     0.040
2011  12   8   55903   -71.704    -7.693     0.109     0.051
2011  12   9   55904   -71.906    -7.706     0.136     0.063
2011  12  10   55905   -71.922    -7.661     0.167     0.086
2011  12  11   55906   -71.772    -7.594     0.199     0.113
2011  12  12   55907   -71.430    -7.587     0.231     0.140
2011  12  13   55908   -70.961    -7.667     0.262     0.167
2011  12  14   55909   -70.818    -7.797     0.231     0.146
2011  12  15   55910   -70.912    -7.861     0.183     0.112
2011  12  16   55911   -71.112    -7.808     0.134     0.079
2011  12  17   55912   -71.055    -7.644     0.115     0.066
2011  12  18   55913   -70.915    -7.406     0.107     0.060
2011  12  19   55914   -70.865    -7.134     0.098     0.055
2011  12  20   55915   -70.904    -6.929     0.090     0.049
2011  12  21   55916   -71.282    -6.921     0.160     0.099
2011  12  22   55917   -71.568    -7.163     0.251     0.164
2011  12  23   55918   -71.384    -7.514     0.296     0.191
2011  12  24   55919   -71.031    -7.695     0.323     0.203
2011  12  25   55920   -70.694    -7.603     0.351     0.215
2011  12  26   55921   -70.318    -7.382     0.379     0.227
2011  12  27   55922   -69.871    -7.242     0.406     0.239
2011  12  28   55923   -69.489    -7.271     0.434     0.252
2011  12  29   55924   -69.464    -7.375     0.443     0.268
2011  12  30   55925   -69.709    -7.475     0.449     0.283
2011  12  31   55926   -69.977    -7.523     0.403     0.257
2012   1   1   55927   -70.168    -7.486     0.337     0.215

 
 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

2011  12   2   55897  1.1892  0.0050  15.04106697165    0.00000000087 
2011  12   3   55898  1.1487  0.0049  15.04106697870    0.00000000085 
2011  12   4   55899  1.0352  0.0051  15.04106699846    0.00000000089 
2011  12   5   55900  0.9634  0.0054  15.04106701096    0.00000000094 
2011  12   6   55901  0.8532  0.0052  15.04106703014    0.00000000091 
2011  12   7   55902  0.6886  0.0050  15.04106705879    0.00000000087 
2011  12   8   55903  0.5762  0.0049  15.04106707836    0.00000000085 
2011  12   9   55904  0.5734  0.0051  15.04106707885    0.00000000089 
2011  12  10   55905  0.5679  0.0053  15.04106707981    0.00000000092 
2011  12  11   55906  0.5617  0.0053  15.04106708089    0.00000000092 
2011  12  12   55907  0.6209  0.0053  15.04106707058    0.00000000092 
2011  12  13   55908  0.7756  0.0054  15.04106704365    0.00000000094 
2011  12  14   55909  0.9411  0.0054  15.04106701484    0.00000000094 
2011  12  15   55910  1.1186  0.0054  15.04106698394    0.00000000094 
2011  12  16   55911  1.3247  0.0054  15.04106694806    0.00000000094 
2011  12  17   55912  1.4372  0.0053  15.04106692847    0.00000000092 
2011  12  18   55913  1.4914  0.0055  15.04106691904    0.00000000096 
2011  12  19   55914  1.4690  0.0058  15.04106692294    0.00000000101 
2011  12  20   55915  1.3238  0.0057  15.04106694821    0.00000000099 
2011  12  21   55916  1.1456  0.0057  15.04106697924    0.00000000099 
2011  12  22   55917  0.9061  0.0058  15.04106702093    0.00000000101 
2011  12  23   55918  0.7472  0.0058  15.04106704859    0.00000000101 
2011  12  24   55919  0.7486  0.0057  15.04106704835    0.00000000099 
2011  12  25   55920  0.8731  0.0055  15.04106702668    0.00000000096 
2011  12  26   55921  1.0590  0.0052  15.04106699431    0.00000000091 
2011  12  27   55922  1.2761  0.0050  15.04106695652    0.00000000087 
2011  12  28   55923  1.4129  0.0050  15.04106693270    0.00000000087 
2011  12  29   55924  1.4905  0.0052  15.04106691919    0.00000000091 
2011  12  30   55925  1.5042  0.0052  15.04106691681    0.00000000091 
2011  12  31   55926  1.4123  0.0053  15.04106693281    0.00000000092 
2012   1   1   55927  1.2643  0.0055  15.04106695857    0.00000000096 


 4 - INFORMATION ON TIME SCALES      
     TAI - UTC = 34 s.  No leap second introduced during period [55897-55927]
     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               143   124     5     -   108   117       7
   55897.27 to 55925.27       352   370     9     -   283   159

   BKG   8 R  2                92    94     3     -    57    63       9
   55897.27 to 55925.27       168    72     5     -    54    37

   GSFC  9 R  4                71    70     3     8    50    53       9
   55897.27 to 55925.27       149   135     3    10    44    23

   IAA   5 R  2                60    62     2     -    44    44       9
   55897.27 to 55925.27       193   132     6     -    57    43

   IAA   5 R  2                60    62     2     -    44    44       9
   55897.27 to 55925.27       193   132     6     -    57    43

   USNO 10 R  1                72    68     2     -    56    59       9
   55897.27 to 55925.27       168   105     3     -    41    48

   MAO   3 R  1                74    74     3     -    49    50       9
   55897.29 to 55925.31        59   114     8     -    33    75

   IVS   2 R  1 *              65    68     3     -    26    81       9
   55897.27 to 55925.27       158    70     3     -    17     4


 VLBI Intensive
   BKG   3 R  2 *               -     -    15     -     -     -      22
   55897.80 to 55926.27         -     -    26     -     -     -

   GSFC  9 R  2 *               -     -    17     -     -     -      28
   55897.80 to 55926.33         -     -    21     -     -     -

   IAA   5 R  1 *               -     -    15     -     -     -      20
   55898.27 to 55926.27         -     -    14     -     -     -

   PUL  10 R  0                 -     -    20     -     -     -      25
   55897.80 to 55926.27         -     -    24     -     -     -

   USNO  5 R  1 *               -     -    17     -     -     -      25
   55897.80 to 55926.27         -     -    25     -     -     -


 GPS
   CODE 98 P  1                 5     5     -     1     -     -      30
   55897.50 to 55926.50        29    26     -     6     -     -

   JPL  96 P  3                 9     9     -     4     -     -      30
   55897.50 to 55926.50        51    31     -    13     -     -

   GFZ  96 P  2                 5     5     -     1     -     -      30
   55897.50 to 55926.50        39    28     -     6     -     -

   ESOC 96 P  1                16    14     -     1     -     -      30
   55897.50 to 55926.50        36    39     -     6     -     -

   NOAA 96 P  1                 2     3     -    32     -     -      30
   55897.50 to 55926.50        46    47     -     9     -     -

   SIO  96 P  1                16    17     -     4     -     -      30
   55897.50 to 55926.50        47    25     -     9     -     -

   EMR  96 P  3                32    33     -     5     -     -      30
   55897.50 to 55926.50        40    37     -    13     -     -

   IAA   1 P  1                27    37     -     6     -     -      30
   55897.50 to 55926.50       135   159     -    27     -     -

   IGR  96 P  2 *              18    19     -     4     -     -      30
   55897.50 to 55926.50        44    26     -     6     -     -

   IGS   7 P  1 *               4     5     -     1     -     -      30
   55897.50 to 55926.50        31    20     -     5     -     -


 SLR
   MCC  97 L  1               191   239     -    33     -     -      26
   55897.00 to 55927.00       192   174     -    85     -     -

   IAA   2 L  1                54    54     -     3     -     -      31
   55897.00 to 55927.00       196   235     -    28     -     -

   CGS   3 L  2                83    91     -    21     -     -      30
   55897.50 to 55926.50       216   208     -    31     -     -

   PUL  10 L  0                46    50     -     3     -     -      29
   55897.97 to 55926.76       103   223     -    20     -     -

   ILRS  5 L  1 *              70    71     -    13     -     -      30
   55897.50 to 55926.50       161   166     -    36     -     -


 BULLETIN A
   NEOS 97 C  1                24    24     7     -     -     -      31
   55897.00 to 55927.00        41    25     7     -     -     -

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