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)  
51870.50  -75362  320872  1232244  10780  2134  2118     128       0   0  0  0
51871.50  -75044  322655  1222000   9708  4650  4650     101       0   0  0  0
51872.50  -74823  324363  1213044   8205  5407  5407      86       0   0  0  0