Author: AC Coordinator / AIUB/CODE Ultra Rapid IGS Orbit Comparison - Week 1186 Day: 4 Hour: 00 (Oct 03, 2002) Contacts: R. Weber (rweber@luna.tuwien.ac.at), H. Bock (bock@aiub.unibe.ch), R. Dach (dach@aiub.unibe.ch) 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 1.1186.4 GPS week: 1186 Day: 4 MJD: 52550.0 CENT STA| DX DY DZ RX RY RZ SCL RMS WRMS | TOFT TDRFT RMS --------|------------------------------------------------|--------------------- brd n/a|0.15 0.82 0.03 0.05 2.24 7.13 11.3 1.93 1.93 | 1.1 0.6 5.66 cou n/a|0.01-0.03-0.01 0.07 0.15 1.72 -0.5 3.58 0.09 | -1.6 -2.7 19.11 emu n/a|0.02 0.02 0.00 -0.23 0.15 2.46 -0.5 0.42 0.10 | 0.0 0.0 0.00 esu n/a|0.01-0.05 0.02 -1.05 1.27 -0.71 0.0 0.33 0.20 | 564.1 1.8 5.49 gfu n/a|0.02 0.02-0.01 0.24 0.01 -0.05 0.0 0.22 0.11 | 4.0 6.5 5.52 siu n/a|0.00 0.02 0.02 0.55 0.46 3.41 0.0 0.16 0.12 | 0.0 0.0 0.00 usu n/a|0.01-0.01 0.01 0.51 0.33 1.75 -0.2 0.26 0.14 |-2398.4 -86.2 4.62 igu n/a|0.02 0.01 0.00 0.11 0.33 1.69 -0.1 0.15 0.13 | -3.0 -0.1 5.44 igr n/a|0.00 0.00 0.00 0.00 0.00 0.00 0.0 0.00 0.00 | -0.5 2.2 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 2.1186.4 GPS week: 1186 Day: 4 MJD: 52550.0 Weighted Average PRN | brd cou emu esu gfu siu usu igu igr IGR | ------|------------------------------------------| 1 | 203 3 7 11 7 7 9 7 0 0 | 2E | 328 17 23 --- --- --- --- --- 0 0 | 3 | 121 4 14 12 8 10 6 3 0 0 | 4 | 120 22 7 12 17 10 10 7 0 0 | 5E | 322 7 33 42 53 34 66 44 0 0 | 6 | 357 5 8 6 4 19 6 6 0 0 | 7 | 183 22 12 4 7 9 30 11 0 0 | 8 | 187 14 7 12 4 17 8 5 0 0 | 9 | 127 5 11 25 7 14 20 11 0 0 | 10E | 174 15 7 30 24 10 13 6 0 0 | 11 | 155 8 8 27 11 8 9 5 0 0 | 13 | 163 10 9 21 17 18 16 9 0 0 | 14 | 161 8 11 14 8 8 10 7 0 0 | 15 | 116 >>> 11 --- 7 --- --- --- 0 0 | X17 | --- --- --- --- --- --- --- --- 0 0 | 18E | 95 5 7 16 29 28 8 13 0 0 | 20E | 102 10 14 41 30 12 17 17 0 0 | 22E | 83 39 16 9 62 16 58 27 0 0 | 23E | 264 36 17 --- 21 14 52 21 0 0 | 24 | 142 24 12 17 9 9 13 9 0 0 | 25 | 248 12 6 26 11 5 13 4 0 0 | 26 | 51 6 10 10 7 11 9 7 0 0 | 27 | 123 3 7 13 4 15 8 6 0 0 | 28E | 113 17 10 28 13 16 18 14 0 0 | 29 | 93 191 199 138 --- --- --- --- 0 0 | 30E | 348 37 44 16 33 35 62 39 0 0 | 31 | 123 7 9 10 12 5 14 7 0 0 | ------|------------------------------------------| RMS | 193 358 42 33 22 16 26 15 0 | WRMS | 193 9 10 20 11 12 14 13 0 | MEDI | 149 11 11 16 11 12 13 7 0 |