Author: AC Coordinator / GFZ Potsdam Ultra Rapid IGS Orbit Comparison - Week 1226 Day: 4 Hour: 00 (Jul 10, 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 SIU 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 1.1226.4 GPS week: 1226 Day: 4 MJD: 52830.0 CENT STA| DX DY DZ RX RY RZ SCL RMS WRMS | TOFT TDRFT RMS --------|------------------------------------------------|--------------------- brd n/a|0.03 0.39 0.20 -4.17 -3.29 -5.65 16.3 1.76 1.76 | -61.7 -242.9 621.70 cou n/a|0.03 0.00 0.00 -0.21 -1.02 1.43 -0.5 4.94 0.10 | -431.4 1043.43629.00 emu n/a|0.01 0.01 0.01 -0.28 -0.56 -0.42 -0.3 0.19 0.08 | -198.6 -253.7 3.03 esu n/a|-.02 0.00 0.00 -0.22 -0.33 -0.30 0.1 0.19 0.16 | 37.7 -241.1 4.21 gfu n/a|-.01 0.03 0.01 -0.82 0.09 -0.23 -0.3 0.15 0.11 | -67.5 -234.3 4.91 siu n/a|0.00 0.02 0.03 -0.28 -0.29 1.67 -0.1 0.24 0.18 | 0.0 0.0 0.00 usu n/a|0.00 0.04 0.03 -0.59 -0.17 0.69 -0.3 0.31 0.17 | -603.3 1186.83832.00 igu n/a|0.01 0.02 0.00 -0.47 -0.32 0.16 0.0 0.14 0.08 | -408.7 1090.53695.00 igr n/a|0.00 0.00 0.00 0.00 0.00 0.00 0.0 0.00 0.00 | -68.9 -232.8 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 2.1226.4 GPS week: 1226 Day: 4 MJD: 52830.0 Weighted Average PRN | brd cou emu esu gfu siu usu igu igr IGR | ------|------------------------------------------| 1 | 373 6 5 23 4 21 12 6 0 0 | 2 | 88 23 42 10 8 11 78 28 0 0 | 3 | 237 6 2 17 5 12 12 4 0 0 | 4E | 129 8 22 34 26 44 34 19 0 0 | 5 | 91 5 5 14 10 10 10 4 0 0 | 6 | 290 8 4 11 6 20 12 6 0 0 | 7 | 61 18 8 12 6 18 11 8 0 0 | 8 | 136 6 12 11 7 14 9 8 0 0 | 9 | 102 6 12 22 6 25 10 5 0 0 | 10 | 134 5 11 11 6 5 12 6 0 0 | 11E | 150 7 5 32 23 14 13 6 0 0 | 13 | 92 11 5 19 9 10 9 4 0 0 | 14 | 125 8 4 19 7 12 15 3 0 0 | 15E | 278 50 41 --- 19 10 82 33 0 0 | 16 | 81 12 5 11 19 16 17 11 0 0 | 17E | 245 30 70 28 --- 65 67 43 0 0 | 18 | 209 5 6 17 19 11 16 9 0 0 | 20 | 104 15 7 32 19 16 11 6 0 0 | 21E | 251 11 13 33 25 47 35 12 0 0 | 23 | 296 5 17 --- 5 8 11 8 0 0 | 24E | 169 >>> --- --- 46 24 --- --- 0 0 | 25 | 156 44 13 11 20 33 47 15 0 0 | 26 | 112 6 8 6 5 15 12 4 0 0 | 27 | 108 10 9 24 10 14 8 9 0 0 | 28 | 85 9 9 15 6 35 24 13 0 0 | 29 | 91 15 7 5 4 16 30 5 0 0 | 30 | 106 10 9 6 5 9 10 4 0 0 | 31 | 79 7 5 15 7 11 16 5 0 0 | ------|------------------------------------------| RMS | 176 494 19 19 15 24 31 14 0 | WRMS | 176 10 8 16 11 18 17 8 0 | MEDI | 127 9 8 15 7 15 12 6 0 |