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) 51823.50 -15400 250237 1723368 3910 2120 2104 274 0 0 0 0 51824.50 -16829 250827 1718780 5267 4650 4650 295 0 0 0 0 51825.50 -18221 251435 1712742 6809 5407 5407 314 0 0 0 0