Author: AC Coordinator / AIUB/CODE Ultra Rapid IGS Orbit Comparison - Week 1218 Day: 5 Hour: 00 (May 16, 2003) 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 1.1218.5 GPS week: 1218 Day: 5 MJD: 52775.0 CENT STA| DX DY DZ RX RY RZ SCL RMS WRMS | TOFT TDRFT RMS --------|------------------------------------------------|--------------------- brd n/a|-.03-0.07 0.25 -4.11 -1.48-11.01 20.1 2.06 2.06 | 7.3 -23.4 28.63 cou n/a|0.01-0.03-0.01 0.85 -0.33 -3.74 -0.3 6.79 0.24 | 2.3 -30.6 191.90 emu n/a|0.01-0.01 0.01 0.15 0.20 -1.20 -0.4 0.15 0.10 | 2052.9 36.1 3.68 esu n/a|-.02-0.02 0.01 -2.00 -1.75 0.19 0.6 0.25 0.19 | 2051.7 31.7 4.08 gfu n/a|-.01-0.01 0.01 -0.04 0.75 0.04 0.0 0.16 0.12 | -2.5 1.8 2.88 siu n/a|0.04-0.04 0.02 -0.90 -0.71 -0.24 -0.2 0.25 0.25 | 0.0 0.0 0.00 usu n/a|-.01 0.01 0.00 -0.61 -0.39 -0.33 0.2 6.59 0.19 | 585.8 2.5 3.22 igu n/a|0.01-0.01 0.01 -0.49 -0.12 -0.31 0.1 0.11 0.08 | -5.9 -1.0 3.58 igr n/a|0.00 0.00 0.00 0.00 0.00 0.00 0.0 0.00 0.00 | -0.7 3.9 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 2.1218.5 GPS week: 1218 Day: 5 MJD: 52775.0 Weighted Average PRN | brd cou emu esu gfu siu usu igu igr IGR | ------|------------------------------------------| 1 | 246 5 7 18 7 21 15 5 0 0 | 2 | 292 17 8 14 18 16 25 12 0 0 | 3E | 139 28 27 40 39 17 71 29 0 0 | 4 | 135 4 6 15 4 18 10 6 0 0 | 5 | 129 14 10 7 7 9 10 5 0 0 | 6E | 446 38 23 25 51 8 24 16 0 0 | 7E | 177 36 28 59 12 50 42 17 0 0 | 8 | 257 10 8 25 10 14 17 4 0 0 | 9 | 105 15 5 13 4 12 7 3 0 0 | 10 | 129 10 8 10 10 38 8 10 0 0 | 11 | 65 6 7 53 16 21 6 7 0 0 | 13 | 148 20 10 22 17 29 15 15 0 0 | 14 | 284 15 11 14 3 20 12 4 0 0 | 15 | 122 183 37 --- 31 73 169 14 0 0 | 16 | 152 15 6 19 11 25 29 5 0 0 | 17 | 373 >>> --- --- --- --- >>> --- 0 0 | 18 | 259 4 6 25 6 19 10 4 0 0 | 20 | 71 18 6 27 3 8 13 5 0 0 | 21 | 99 7 17 35 14 23 --- 9 0 0 | 22 | 263 25 13 21 17 23 --- 4 0 0 | 23 | 291 16 14 --- 8 11 17 10 0 0 | 24 | 117 89 14 13 9 21 16 13 0 0 | 25 | 199 9 10 8 4 17 5 3 0 0 | 26 | 168 3 9 11 7 15 6 2 0 0 | 27 | 93 11 5 21 8 22 14 2 0 0 | 28 | 106 13 16 46 7 19 11 15 0 0 | 29 | 86 186 15 7 4 28 --- 10 0 0 | 30 | 133 19 11 18 3 12 7 6 0 0 | 31E | 249 22 16 24 --- 15 41 15 0 0 | ------|------------------------------------------| RMS | 206 679 15 25 16 25 659 11 0 | WRMS | 206 24 10 19 12 25 19 8 0 | MEDI | 148 15 10 20 8 19 14 7 0 |