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)  
51658.50   83566  339681  2505074   7510  2104  2119    1552       0   0  0  0
51659.50   84055  338883  2497559   7520  4650  4650    4024       0   0  0  0
51660.50   84474  338115  2489883   7832  5407  5407    5946       0   0  0  0