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)  
51614.50   72078  357907  2924931  11399  2122  2116    1563       0   0  0  0
51615.50   73187  357504  2914093  10277  4650  4650    4024       0   0  0  0
51616.50   74194  357096  2904253   9403  5407  5407    5946       0   0  0  0