Author: AC Coordinator / GFZ Potsdam Ultra Rapid IGS Orbit Comparison - Week 1224 Day: 4 Hour: 00 (Jun 26, 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 1.1224.4 GPS week: 1224 Day: 4 MJD: 52816.0 CENT STA| DX DY DZ RX RY RZ SCL RMS WRMS | TOFT TDRFT RMS --------|------------------------------------------------|--------------------- brd n/a|0.27 0.54 0.24 -1.61 -1.78 -4.90 20.0 2.09 2.09 | 0.3 1.0 6.15 cou n/a|0.01-0.04 0.01 0.10 0.43 0.80 -0.2 6.87 0.26 | -2.6 -3.8 12.72 emu n/a|-.01-0.01 0.00 -0.10 -0.35 -0.21 -0.3 0.82 0.11 | 54.3 -11.7 5.21 esu n/a|0.01-0.01-0.03 -0.75 0.99 0.38 0.5 0.21 0.16 | 58.3 4.5 2.97 gfu n/a|0.00-0.01-0.01 0.08 0.39 -0.39 -0.5 0.84 1.01 | -1.1 3.2 5.94 siu n/a|0.06-0.01-0.02 -0.69 0.21 0.00 -0.4 0.84 0.16 | 0.0 0.0 0.00 usu n/a|-.01-0.03 0.01 -0.56 0.12 -0.16 0.4 0.31 0.10 | 53.3 -13.1 4.04 igu n/a|0.00-0.02-0.01 -0.29 0.08 -0.16 -0.3 0.83 0.70 | -3.1 -1.9 4.99 igr n/a|0.00 0.00 0.00 0.00 0.00 0.00 0.0 0.00 0.00 | 0.1 1.5 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 2.1224.4 GPS week: 1224 Day: 4 MJD: 52816.0 Weighted Average PRN | brd cou emu esu gfu siu usu igu igr IGR | ------|------------------------------------------| 1E | 338 53 15 19 12 13 23 12 0 0 | 2 | 279 28 28 14 12 30 42 25 0 0 | 3 | 206 11 7 16 4 10 6 3 0 0 | 4E | 110 16 12 11 29 11 22 14 0 0 | 5 | 162 2 5 6 6 13 8 2 0 0 | 6 | 386 5 13 17 20 9 8 11 0 0 | 7 | 60 8 14 20 4 8 10 6 0 0 | 8 | 136 6 9 9 8 28 13 6 0 0 | 9 | 153 14 7 6 5 10 6 3 0 0 | 10 | 243 14 5 6 5 11 7 4 0 0 | 11E | 184 22 23 28 37 24 28 8 0 0 | 13E | 109 4 16 17 9 28 19 9 0 0 | 14E | 175 8 8 12 10 24 10 5 0 0 | 15E | 386 110 39 --- 54 8 82 48 0 0 | 16 | 74 8 5 19 7 25 13 8 0 0 | 17E | 360 >>> 427 --- 432 432 --- 430 0 0 | 18 | 107 6 8 20 9 19 5 3 0 0 | 20 | 146 10 8 20 8 10 6 6 0 0 | 21E | 63 11 15 29 70 16 20 26 0 0 | 23 | 276 14 9 --- 11 9 10 8 0 0 | 24E | 177 131 20 32 26 24 76 26 0 0 | 25 | 200 13 7 27 5 14 7 6 0 0 | 26E | 113 55 29 73 15 21 68 34 0 0 | 27 | 159 10 10 6 4 19 14 6 0 0 | 28 | 98 9 6 8 8 38 9 8 0 0 | 29E | 286 67 32 19 9 13 64 25 0 0 | 30 | 107 18 13 5 7 20 17 6 0 0 | 31 | 85 9 10 10 4 40 14 8 0 0 | ------|------------------------------------------| RMS | 209 687 82 21 84 84 31 83 0 | WRMS | 209 26 11 16 101 16 10 70 0 | MEDI | 161 12 11 17 9 18 13 8 0 |