version 2
Source: Xpole,Ypole,Xrt,Yrt,LOD: weighted average of centres;
        UT1-UTC: integrated from the 5th day prior to Bull. A
                 last non-predicted value.

Orbits: to be used with the IGS Final Orbits

  MJD      Xpole   Ypole  UT1-UTC    LOD  Xsig  Ysig   UTsig  LODsig  Nr Nf Nt    Xrt    Yrt  Xrtsig  Yrtsig
             (10**-6")       (0.1 usec)    (10**-6")     (0.1 usec)              (10**-6"/d)    (10**-6"/d)
51783.50   54667  242772  1939639   5477    49    47     226      52   0  0  0  -1757   -108     50     89
51784.50   52957  242597  1933432   6763    63    22     205      78   0  0  0  -1473   -167    144     87
51785.50   51630  242225  1925489   8475    62    33     148      29   0  0  0  -1283   -406     92    108
51786.50   50511  241961  1916408   9507    64    17     153      66   0  0  0  -1032   -243     88     65
51787.50   49527  241942  1907045   9292    62    29     128      63   0  0  0  -1039    -19    102    118
51788.50   48482  242138  1897846   8679    63    34     139      57   0  0  0  -1229    141    108     37
51789.50   47266  242107  1889961   7032    57    39     149      45   0  0  0  -1282   -119     47     57