version 2
Source: Xpole,Ypole,Xrt,Yrt,LOD: weighted average of centres;
        UT1-UTC: integrated from the 5th day prior to Bull. A
                 last non-predicted value.

Orbits: to be used with the IGS Final Orbits

  MJD      Xpole   Ypole  UT1-UTC    LOD  Xsig  Ysig   UTsig  LODsig  Nr Nf Nt    Xrt    Yrt  Xrtsig  Yrtsig
             (10**-6")       (0.1 usec)    (10**-6")     (0.1 usec)              (10**-6"/d)    (10**-6"/d)
52553.50  186126  188479 -2359019  11509    41    24      60      40   0  0  0  -2321  -2219     71     43
52554.50  183775  186275 -2370196  10940    62    22      66      60   0  0  0  -2484  -2475     50    120
52555.50  181205  184105 -2379844   8787    48    28      86      56   0  0  0  -2649  -2204     66     31
52556.50  179006  181863 -2387306   6115    50    16      65      48   0  0  0  -1992  -2153     76     41
52557.50  176799  179978 -2392028   3456    43    34      68      59   0  0  0  -2478  -1696     35     53
52558.50  174282  178110 -2394613   1679    36    28      77     110   0  0  0  -2648  -2124     43     57
52559.50  172005  176126 -2396092   1007    36    26      94      28   0  0  0  -2062  -2010     77     58