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)  
51689.50   95186  321626  2201483   7058  2124  2149    1539       0   0  0  0
51690.50   95403  320408  2193756   8397  4650  4650    4024       0   0  0  0
51691.50   95551  319259  2184641   9832  5407  5407    5946       0   0  0  0