version 2
Source: IERS Bulletin A (2000_2000_2)

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)  
51860.50  -66566  302038  1317904  10597  2139  2108     148       0   0  0  0
51861.50  -66843  303069  1308152   8907  4650  4650     156       0   0  0  0
51862.50  -67202  304161  1299870   7656  5407  5407     193       0   0  0  0