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)  
51779.50   61300  243077  1958367   4925  2120  2130     103       0   0  0  0
51780.50   59565  242680  1953832   4144  4650  4650     111       0   0  0  0
51781.50   57908  242356  1949798   3924  5407  5407      95       0   0  0  0