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) 51843.50 -45831 272137 1507449 14945 2120 2132 58 0 0 0 0 51844.50 -46809 273575 1493133 13688 4650 4650 38 0 0 0 0 51845.50 -47840 274945 1480258 12062 5407 5407 34 0 0 0 0