version 2
Source: IERS Bulletin A (   0_   0_ )

Orbits: to be used with the IGS Prediction Service Orbits (IGP)

  MJD      Xpole   Ypole  UT1-UTC    LOD  Xsig  Ysig   UTsig  LODsig  Nr Nf Nt
             (10**-6")       (0.1 usec)    (10**-6")    (0.1 usec)  
51730.50  107980  275223  2035533   3646  2145  2136    1548       0   0  0  0
51731.50  107353  274448  2031632   4157  4650  4650    4024       0   0  0  0
51732.50  106751  273670  2027553   4000  5407  5407    5946       0   0  0  0