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)  
51729.50  108522  276009  2039002   2247  2166  2151    1547       0   0  0  0
51730.50  107805  275221  2036224   3309  4650  4650    4024       0   0  0  0
51731.50  107131  274438  2032624   3889  5407  5407    5946       0   0  0  0