Author: AC Coordinator / GFZ Potsdam Ultra Rapid IGS Orbit Comparison - Week 1224 Day: 1 Hour: 12 (Jun 23, 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 1.1224.1 GPS week: 1224 Day: 1 MJD: 52813.5 CENT STA| DX DY DZ RX RY RZ SCL RMS WRMS | TOFT TDRFT RMS --------|------------------------------------------------|--------------------- brd |-.64-0.38 0.26 0.83 0.31 -3.46 18.1 2.65 2.65 | 0.2 1.2 5.57 cou n/a|-.02 0.00 0.01 0.39 0.64 -1.51 -0.5 3.61 0.12 | -2.2 -4.5 10.04 emu n/a|0.00 0.02 0.00 0.01 -0.03 1.39 -0.3 0.17 0.17 | 87.9 -9.6 4.11 esu n/a|-.01-0.01-0.04 -0.82 1.26 -0.05 1.2 0.61 0.18 | 45.9 5.0 3.96 gfu n/a|0.00 0.00-0.01 -0.49 0.82 0.21 0.0 0.22 0.20 | 0.2 5.9 5.10 siu n/a|0.01 0.00 0.00 -0.08 -0.04 1.56 -0.8 0.17 0.17 | 0.0 0.0 0.00 usu n/a|-.01-0.01 0.02 0.42 0.56 1.84 -0.3 3.49 0.15 | 88.5 -9.8 4.61 igu n/a|0.00 0.01 0.00 -0.21 0.24 1.06 -0.3 0.15 0.13 | -2.0 0.8 4.21 igr n/a|0.00 0.00 0.00 0.00 0.00 0.00 0.0 0.00 0.00 | -0.3 1.9 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 2.1224.1 GPS week: 1224 Day: 1 MJD: 52813.5 Weighted Average PRN | brd cou emu esu gfu siu usu igu igr IGR | ------|------------------------------------------| 1E | 357 19 30 --- 18 10 26 14 0 0 | 2 | 154 9 18 8 19 12 14 13 0 0 | 3 | 132 6 7 24 8 19 10 4 0 0 | 4E | 69 40 7 38 20 4 17 7 0 0 | 5 | 210 6 7 9 5 18 13 5 0 0 | 6 | 376 6 4 13 12 6 9 3 0 0 | 7 | 131 6 5 21 12 13 15 5 0 0 | 8 | 158 3 9 11 4 17 10 7 0 0 | 9 | 165 4 18 19 9 12 10 9 0 0 | 10 | 226 6 4 24 10 19 17 8 0 0 | 11E | 70 6 7 42 13 12 13 6 0 0 | 13E | 98 7 8 27 21 9 18 8 0 0 | 14E | 125 10 17 30 32 13 24 9 0 0 | 15 | 432 305 6 --- 6 17 --- 6 0 0 | 16 | 74 5 10 16 14 14 18 11 0 0 | 17 | 955 >>> --- 304 --- --- >>> --- 0 0 | 18 | 97 7 8 31 16 19 10 12 0 0 | 20 | 102 6 6 18 3 5 10 3 0 0 | 21E | 142 15 9 29 28 7 17 3 0 0 | 23 | 306 5 14 --- 17 6 13 10 0 0 | 24E | 206 76 59 27 71 62 71 61 0 0 | 25 | 207 2 18 10 5 7 6 9 0 0 | 26E | 277 48 31 35 42 14 46 28 0 0 | 27 | 139 2 5 12 16 11 8 3 0 0 | 28 | 114 5 11 5 3 11 20 7 0 0 | 29E | 106 41 16 12 34 13 105 27 0 0 | 30 | 112 7 6 16 6 13 11 3 0 0 | 31 | 90 4 5 15 5 14 12 4 0 0 | ------|------------------------------------------| RMS | 265 361 17 61 22 17 349 15 0 | WRMS | 265 12 17 18 20 17 15 13 0 | MEDI | 141 6 8 19 13 13 14 7 0 |