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) 51679.50 90466 329664 2276642 11522 2111 2106 1534 0 0 0 0 51680.50 91010 329576 2265828 10107 4650 4650 4024 0 0 0 0 51681.50 91464 329381 2256558 8433 5407 5407 5946 0 0 0 0