version 2
Source: IERS Bulletin A (2001_2001_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)  
51913.50  -70679  404436   903962   8395  2130  2132     137       0   0  0  0
51914.50  -70302  406281   895922   7684  4650  4650     119       0   0  0  0
51915.50  -69941  408046   888872   6416  5407  5407      91       0   0  0  0