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)  
51884.50  -81725  346280  1114908  13471  2154  2127     123       0   0  0  0
51885.50  -82048  347988  1101260  13824  4650  4650     120       0   0  0  0
51886.50  -82396  349634  1087701  13294  5407  5407     106       0   0  0  0