IGS Analysis Center Workshop - IGS - NASA

discussed in Section 3 are here seen only for PRN21.Table 2.3 Satellite Sigmas for the January Orbit Test.MJD/PRN 0203 11 12 13 14 15 16 17 18 192021 232425262728293249004.049005.049006,049007.049008.049009.049010.049011.049012.049013.049014.049015.049016.049017.024 1699 192821 1423 1524 16 10 19303326 19 13 15 13 1528 13 36 13 21 13 2227 19 19 1420 15 293935 24 17 15 17 281608 19 16 15 15 182420 15 16 14 1621 31 4420 15 16 19 1917 12 17 1021 12 13 16 17 17 1022 1822362826 14 14 11 1714 12 13 17 19 15 10 16 18 13 10 13 192428 20 15 1420 142217 19230920 18232825 12 12 11 562227 18 17 16 19 162922 17 17 28 21 19222222 19 12 1931 2928 2223 13 18 23 1739 15 162321 26 18 16 17 18 11 24 19273023 19 1934262828 17 202227 242026 16 24 18 26 22 27 26 23 3021 2028 3726 1823 152421 2321 24 18 174023 192927 37 1920263536 19 17 2027 23 14232222 1621 20233227 28 1824263434 18232022 1621 29 1620 14 19 1628253238 1827253726 18 17203420 192826 18 1627 2030342629 18202423 17 2322 16 1621 21 21 222026 1843 26 31 25 21 25233. ORBITCOMBINATIONUSING ORBITDYNAMICS3.1 CurrentIGS Orbit ComparisonTable 3.1 shows the routine orbit comparison performed by the IGS Analysis Center coordinatorforthefirsttwo days ofweek680andthe thirddayofweek68 l. Forthecomparison method andtheformatdescription seetheIGSmail (IGS ReportSeries, see(Goad,1993)). OnlytheorbitsfromtheCOD,EMR, GFZ,andUTXCenters weresubmittedand comparedinthe firstweekandin thesecondweeksix submitted orbit series werecompared (COD,EMR,ESA, GFZ, SIO,UTX). Table3.1 also includes the combined orbits (labelled as IGS) described in the previous Section andtreated as another Center.34