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)  
51684.50   93633  326081  2230760   5779  2108  2122    1549       0   0  0  0
51685.50   94465  325320  2225444   4853  4650  4650    4024       0   0  0  0
51686.50   95186  324510  2220865   4305  5407  5407    5946       0   0  0  0