version 2
Source: IERS Bulletin A (2000_2000_2)

Orbits: to be used with the IGS Rapid Service Orbits (IGR)

  MJD      Xpole   Ypole  UT1-UTC    LOD  Xsig  Ysig   UTsig  LODsig  Nr Nf Nt
             (10**-6")       (0.1 usec)    (10**-6")    (0.1 usec)  
51695.50  104227  317593  2153434   8460    45    21     108       0   0  0  0
51696.50  105258  316835  2145752   6905  2122  2110    1554       0   0  0  0
51697.50  106168  316018  2139671   5256  4650  4650    4024       0   0  0  0