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) 51800.50 24515 239126 1867667 4309 2120 2141 126 0 0 0 0 51801.50 22413 238920 1862711 5602 4650 4650 136 0 0 0 0 51802.50 20409 238809 1856696 6428 5407 5407 140 0 0 0 0