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)  
51669.50   89368  334859  2383246  11726  2114  2125    1504       0   0  0  0
51670.50   89029  334073  2372450   9867  4650  4650    4024       0   0  0  0
51671.50   88769  333267  2363269   8494  5407  5407    5946       0   0  0  0