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)  
51886.50  -82923  350117  1089165  13212  2111  2120       7       0   0  0  0
51887.50  -83370  352105  1076545  12028  4650  4650       8       0   0  0  0
51888.50  -83771  354009  1065349  10364  5407  5407      99       0   0  0  0