Author: AC Coordinator / GFZ Potsdam Ultra Rapid IGS Orbit Comparison - Week 1224 Day: 2 Hour: 00 (Jun 24, 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 1.1224.2 GPS week: 1224 Day: 2 MJD: 52814.0 CENT STA| DX DY DZ RX RY RZ SCL RMS WRMS | TOFT TDRFT RMS --------|------------------------------------------------|--------------------- brd n/a|0.65 0.42 0.30 -4.82 -2.48 -0.13 20.6 2.41 2.41 | -1.5 5.2 6.33 cou n/a|0.02 0.01 0.01 0.30 0.93 -1.58 -0.7 7.17 0.23 | -2.5 -13.6 14.19 emu n/a|0.00 0.01 0.01 0.35 -0.11 0.53 -0.1 1.46 0.11 | 81.7 -18.1 3.68 esu n/a|0.00 0.00-0.03 0.44 -0.33 -0.35 0.1 0.20 0.17 | 48.3 2.8 3.58 gfu n/a|-.01 0.03 0.01 0.46 -0.19 -0.06 -0.5 0.17 0.15 | -0.6 -2.2 4.23 siu n/a|0.00 0.01-0.01 -0.10 0.56 0.37 -0.5 0.19 0.16 | 0.0 0.0 0.00 usu n/a|0.02-0.02 0.01 -0.32 -0.09 1.03 -0.3 0.36 0.11 | 80.3 -13.2 3.99 igu n/a|0.00 0.01 0.00 0.30 -0.13 0.34 -0.2 0.15 0.09 | -2.5 -2.1 3.65 igr n/a|0.00 0.00 0.00 0.00 0.00 0.00 0.0 0.00 0.00 | 0.9 -1.3 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 2.1224.2 GPS week: 1224 Day: 2 MJD: 52814.0 Weighted Average PRN | brd cou emu esu gfu siu usu igu igr IGR | ------|------------------------------------------| 1E | 358 40 7 13 24 21 6 10 0 0 | 2 | 102 12 14 15 13 17 28 15 0 0 | 3 | 173 9 10 13 5 14 2 4 0 0 | 4E | 92 96 30 35 20 13 39 15 0 0 | 5 | 98 10 3 15 8 19 8 4 0 0 | 6 | 371 17 8 21 8 11 11 8 0 0 | 7 | 126 9 5 23 7 15 6 5 0 0 | 8 | 147 4 7 19 14 13 10 8 0 0 | 9 | 168 10 3 7 9 11 9 4 0 0 | 10 | 99 8 5 5 5 8 8 4 0 0 | 11E | 72 12 8 12 14 7 11 5 0 0 | 13E | 101 12 12 22 14 16 14 9 0 0 | 14E | 68 14 13 32 15 29 16 6 0 0 | 15E | 328 307 25 --- 35 24 --- 28 0 0 | 16 | 84 7 14 13 13 6 18 11 0 0 | 17 | 886 >>> 768 --- --- --- --- --- 0 0 | 18 | 96 9 13 20 7 11 14 9 0 0 | 20 | 97 11 3 24 13 10 5 6 0 0 | 21E | 126 28 6 18 23 27 13 10 0 0 | 23 | 264 8 13 --- 4 14 11 7 0 0 | 24E | 142 177 70 45 35 33 152 48 0 0 | 25 | 165 4 7 11 4 17 9 3 0 0 | 26E | 286 78 23 43 28 23 57 19 0 0 | 27 | 144 2 8 21 13 13 5 9 0 0 | 28 | 109 9 5 9 9 19 16 8 0 0 | 29E | 120 74 37 11 28 45 73 38 0 0 | 30 | 122 13 6 9 6 11 16 7 0 0 | 31 | 99 9 6 16 10 10 5 6 0 0 | ------|------------------------------------------| RMS | 241 717 146 20 17 19 36 15 0 | WRMS | 241 23 11 17 15 16 11 9 0 | MEDI | 124 12 8 16 13 14 11 8 0 |