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)  
51648.50   82750  343592  2623894  11701  2117  2128    1556       0   0  0  0
51649.50   83567  343736  2611930  12227  4650  4650    4024       0   0  0  0
51650.50   84290  343770  2599772  12089  5407  5407    5946       0   0  0  0