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)  
51731.50  106852  274355  2030239   4777  2111  2143    1582       0   0  0  0
51732.50  106047  273633  2025621   4459  4650  4650    4024       0   0  0  0
51733.50  105293  272887  2021642   3498  5407  5407    5946       0   0  0  0