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)  
51858.50  -65694  300591  1342392  12820  2112  2108      83       0   0  0  0
51859.50  -66890  302416  1330058  11849  4650  4650      87       0   0  0  0
51860.50  -68013  304157  1318972  10322  5407  5407     122       0   0  0  0