Author: AC Coordinator / AIUB/CODE Ultra Rapid IGS Orbit Comparison - Week 1187 Day: 3 Hour: 00 (Oct 09, 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 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 1.1187.3 GPS week: 1187 Day: 3 MJD: 52556.0 CENT STA| DX DY DZ RX RY RZ SCL RMS WRMS | TOFT TDRFT RMS --------|------------------------------------------------|--------------------- brd n/a|0.40 0.61 0.05 0.78 -0.44 -1.34 10.817.1817.18 | -1.2 1.8 5.92 cou n/a|-.01-0.02-0.02 0.43 0.62 -3.26 -0.4 6.07 0.13 | -2.7 -9.0 21.69 emu n/a|-.02 0.01 0.00 -0.29 0.29 -1.11 0.0 0.20 0.10 | 0.0 0.0 0.00 esu n/a|-.01 0.01 0.04 -1.37 1.36 0.46 0.1 0.18 0.22 | 770.6 11.5 4.76 gfu n/a|-.01 0.02 0.01 0.39 0.27 -0.45 -0.3 0.20 0.15 | 0.4 -3.3 5.73 usu n/a|-.03-0.02 0.02 -0.54 0.08 -1.06 0.2 0.20 0.11 |-3648.9 -45.1 4.59 igu n/a|-.03 0.01 0.01 -0.25 0.41 -0.61 0.0 0.17 0.14 | -2.1 -6.2 5.02 igr n/a|0.00 0.00 0.00 0.00 0.00 0.00 0.0 0.00 0.00 | -0.5 -0.6 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 2.1187.3 GPS week: 1187 Day: 3 MJD: 52556.0 Weighted Average PRN | brd cou emu esu gfu usu igu igr IGR | ------|--------------------------------------| 1 | 118 7 14 19 7 9 5 0 0 | 2E | 98 45 27 --- 29 --- 24 0 0 | 3 | 100 16 7 17 3 13 3 0 0 | 4 | 147 4 8 8 8 7 4 0 0 | 5E | 392 30 17 22 15 30 18 0 0 | 6 | 366 11 14 4 5 28 12 0 0 | 7 | 172 9 19 8 9 5 6 0 0 | 8 | 116 48 48 9 7 11 19 0 0 | 9 | 75 11 18 6 9 5 5 0 0 | 10E | 188 17 12 28 21 11 13 0 0 | 11 | 87 14 7 18 12 6 4 0 0 | 13 | 127 11 14 22 12 10 6 0 0 | 14 | 101 9 7 25 14 11 5 0 0 | 15 | 179 8 12 --- 5 --- 8 0 0 | 17 | >>> >>> 53 --- 48 --- 51 0 0 | 18E | 142 6 9 18 15 8 10 0 0 | 20E | 134 6 17 15 18 12 12 0 0 | 22E | 103 25 14 20 32 36 23 0 0 | 23E | 376 24 17 --- 33 60 33 0 0 | 24 | 145 23 9 11 16 13 6 0 0 | 25 | 39 19 6 10 8 4 3 0 0 | 26 | 193 11 6 22 5 7 4 0 0 | 27 | 309 4 14 11 5 8 5 0 0 | 28E | 132 41 11 11 8 29 11 0 0 | 29 | 260 5 11 38 4 5 9 0 0 | 30E | 255 30 32 29 49 48 38 0 0 | 31 | 140 5 8 24 8 9 6 0 0 | ------|--------------------------------------| RMS | >>> 607 20 18 20 20 17 0 | WRMS | >>> 13 10 22 15 11 14 0 | MEDI | 142 11 14 18 9 11 8 0 |