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)  
51571.50   57499  376403  3311718  10787  2167  2134    1518       0   0  0  0
51572.50   57932  376035  3301697   9254  4650  4650    4024       0   0  0  0
51573.50   58349  375713  3293213   7714  5407  5407    5946       0   0  0  0