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)  
51642.50   78041  345182  2678743   9092  2114  2116    1539       0   0  0  0
51643.50   78501  344576  2670244   7907  4650  4650    4024       0   0  0  0
51644.50   78907  343975  2662706   7169  5407  5407    5946       0   0  0  0