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)  
51882.50  -80910  342845  1138935  11284  2114  2116      99       0   0  0  0
51883.50  -81082  344353  1126996  12594  4650  4650      79       0   0  0  0
51884.50  -81304  345825  1113932  13535  5407  5407      57       0   0  0  0