version 2
Source: IERS Bulletin A (   0_   0_ )

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)  
51801.50   20947  239663  1863074   5620  2147  2151     163       0   0  0  0
51802.50   18274  239938  1857024   6481  4650  4650     173       0   0  0  0
51803.50   15723  240192  1850446   6675  5407  5407     137       0   0  0  0