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)
53218.50   74144  516151 -4538429  -1368    16    20      69      32   0  0  0   2701   -650     21     77
53219.50   76867  515689 -4538274   1066    22    10      78      52   0  0  0   2636   -536     68     89
53220.50   79696  515475 -4540240   2429    21    14      99      19   0  0  0   2827   -170     47     49
53221.50   82487  515381 -4542910   2551    25    11      96      46   0  0  0   2736   -200     42     24
53222.50   85202  515216 -4545070   1636    22    20      92      21   0  0  0   2703   -108     27     34
53223.50   87638  515146 -4546225    554    17    12      93      23   0  0  0   2297   -240     35     33
53224.50   90192  514724 -4546134   -745    18    13     169      52   0  0  0   2825   -671     34     35