Author: AC Coordinator / GFZ Potsdam Ultra Rapid IGS Orbit Comparison - Week 1226 Day: 1 Hour: 00 (Jul 07, 2003) Contacts: G. Gendt (gendt@gfz-potsdam.de), Th. Nischan (nisn@gfz-potsdam.de) COMBINATION STRATEGY: For a complete description of the combination strategy along with all tables and statistics, please refer to the IGS Final Combination reports posted on CDDIS within 13 days after the end of the GPS week. REMARKS on IGS Ultra Rapid Orbit Comparison: 1. The following Ultra-rapid orbits were excluded from the combination but kept for statistics: -> Centre: COU EMU ESU GFU USU IGU _______________________________________________________________________________ Table 1: Daily transformation of each centre to the combined IGS Rapid orbit and clocks (IGR). WRMS - RMS weighted by the centres SP3 header accuracy codes. STA - Number of stations in the daily solutions. Units: meters, mas, ppb, nano-sec, nano-sec/day. Table 1.1226.1 GPS week: 1226 Day: 1 MJD: 52827.0 CENT STA| DX DY DZ RX RY RZ SCL RMS WRMS | TOFT TDRFT RMS --------|------------------------------------------------|--------------------- brd n/a|0.38 0.18 0.00 -1.68 -4.33 -5.22 17.9 1.87 1.87 | 1.0 -3.4 6.38 cou n/a|0.03-0.01 0.00 -0.01 0.30 4.42 -0.3 0.52 0.18 | -0.4 -10.1 10.26 emu n/a|-.01 0.00 0.01 -0.31 -0.11 0.64 -0.2 0.16 0.08 | -87.9 -14.7 4.05 esu n/a|-.01-0.01-0.03 0.11 -0.48 -0.44 0.4 0.20 0.13 | 102.6 -1.5 3.69 gfu n/a|0.01 0.02 0.02 -0.29 0.23 -0.18 -0.3 0.15 0.09 | 0.1 -3.3 3.84 usu n/a|0.01 0.03 0.01 -0.78 0.12 1.57 -0.5 0.37 0.14 | -88.6 -14.9 3.67 igu n/a|0.01 0.01 0.00 -0.34 0.02 0.45 -0.3 0.16 0.08 | -3.2 -8.5 3.41 igr n/a|0.00 0.00 0.00 0.00 0.00 0.00 0.0 0.00 0.00 | 1.4 -2.9 0.00 Table 2: Daily fit for each satellite and each centre resulting from the comparison of the individual solutions to the IGS Rapid solution. The "igr" and "IGR" columns are zero since all centres are compared to the "igr" solution. Eclipsing satellites are flagged with and "E" beside the PRN number. "MEDI" stands for median of the centre's satellite RMS. Units: cm. Table 2.1226.1 GPS week: 1226 Day: 1 MJD: 52827.0 Weighted Average PRN | brd cou emu esu gfu usu igu igr IGR | ------|--------------------------------------| 1 | 369 32 9 12 16 26 6 0 0 | 2 | 124 17 6 15 8 10 6 0 0 | 3 | 259 5 4 6 11 7 3 0 0 | 4E | 106 112 19 25 37 42 19 0 0 | 5 | 103 7 5 7 6 11 5 0 0 | 6 | 467 12 5 9 8 8 5 0 0 | 7 | 57 9 5 23 9 10 6 0 0 | 8 | 205 42 11 10 13 27 13 0 0 | 9 | 97 11 6 4 11 8 7 0 0 | 10 | 142 9 7 5 7 9 4 0 0 | 11E | 110 8 11 33 9 13 8 0 0 | 13 | 68 14 19 29 5 10 13 0 0 | 14 | 154 6 6 10 3 8 3 0 0 | 15E | 161 41 20 --- 19 50 13 0 0 | 16 | 101 8 7 14 6 15 8 0 0 | 17E | 230 153 32 69 24 105 44 0 0 | 18 | 122 10 5 25 8 7 5 0 0 | 20 | 89 4 15 15 6 10 9 0 0 | 21E | 126 --- 16 --- 15 --- 10 0 0 | 23 | 343 144 38 --- 6 75 31 0 0 | 24E | 168 114 49 22 44 117 52 0 0 | 25 | 122 5 6 9 13 8 4 0 0 | 26 | 95 20 7 15 5 14 5 0 0 | 27 | 154 14 12 21 8 19 13 0 0 | 28 | 85 11 7 12 11 13 5 0 0 | 29 | 258 11 11 21 10 11 9 0 0 | 30 | 65 6 3 4 9 8 2 0 0 | 31 | 107 8 5 11 6 13 3 0 0 | ------|--------------------------------------| RMS | 187 52 16 20 15 37 16 0 | WRMS | 187 18 8 13 9 14 8 0 | MEDI | 123 11 7 14 9 11 7 0 |