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)  
51821.50  -11980  248989  1728111   3531  2142  2130     206       0   0  0  0
51822.50  -13808  249494  1724544   3601  4650  4650     224       0   0  0  0
51823.50  -15550  250046  1720611   4266  5407  5407     295       0   0  0  0