Author: AC Coordinator / AIUB/CODE Ultra Rapid IGS Orbit Comparison - Week 1163 Day: 6 Hour: 00 (Apr 27, 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 JPU 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 1.1163.6 GPS week: 1163 Day: 6 MJD: 52391.0 CENT STA| DX DY DZ RX RY RZ SCL RMS WRMS | TOFT TDRFT RMS --------|------------------------------------------------|--------------------- brd n/a|0.43 0.36 0.09 0.19 -1.36 -7.96 6.5 2.42 2.42 | -0.5 -0.4 6.56 cou n/a|0.03-0.04 0.04 1.16 -1.25 -4.22 -0.3 0.59 0.20 | -2.8 -0.4 15.33 emu n/a|0.01-0.01 0.01 0.32 -0.16 -1.35 -0.8 0.17 0.12 | 0.0 0.0 0.00 esu n/a|0.00 0.01 0.03 0.77 -0.81 -0.49 -0.3 0.20 0.19 | 1601.4 21.1 5.84 jpu n/a|0.05-0.03 0.05 0.48 0.85 -0.45 0.2 0.19 0.17 | 0.0 0.0 0.00 usu n/a|-.01 0.02-0.01 0.36 -0.57 -0.66 -0.3 0.48 0.15 | 139.3 -11.7 5.29 igu n/a|0.02-0.01 0.02 0.37 -0.17 -0.83 -0.4 0.15 0.13 | -5.0 -6.0 5.04 igr n/a|0.00 0.00 0.00 0.00 0.00 0.00 0.0 0.00 0.00 | -0.6 -0.4 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 2.1163.6 GPS week: 1163 Day: 6 MJD: 52391.0 Weighted Average PRN | brd cou emu esu jpu usu igu igr IGR | ------|--------------------------------------| 1 | 367 9 14 13 34 8 16 0 0 | 2 | 289 --- --- --- --- --- --- 0 0 | 3 | 232 7 6 20 22 9 9 0 0 | 4 | 131 5 9 12 14 24 12 0 0 | 5 | 126 9 8 18 13 17 7 0 0 | 6 | 598 12 5 17 14 10 6 0 0 | 7 | 164 16 16 10 19 8 13 0 0 | 8 | 145 8 9 16 22 10 9 0 0 | 9 | 103 15 22 10 13 26 9 0 0 | 10E | 121 38 47 22 18 118 45 0 0 | 11 | 100 31 18 35 21 17 12 0 0 | 13 | 185 14 6 19 15 10 8 0 0 | 14 | 134 47 17 20 25 13 17 0 0 | 15 | 209 --- 15 --- --- 23 17 0 0 | 17 | 99 --- --- --- --- --- --- 0 0 | 18E | 196 26 11 30 33 25 21 0 0 | 20E | 174 28 18 26 34 80 31 0 0 | 21E | 541 --- --- --- --- --- --- 0 0 | 22 | 163 8 13 25 25 8 15 0 0 | 23E | 349 299 44 --- 16 195 21 0 0 | 24 | 106 18 6 12 12 4 3 0 0 | 25 | 177 7 6 23 13 18 6 0 0 | 26 | 125 18 12 15 14 21 8 0 0 | 27 | 206 7 18 19 23 10 14 0 0 | 28 | 366 8 10 46 11 10 6 0 0 | 29 | 129 7 17 17 14 22 11 0 0 | 30 | 106 9 7 18 28 7 9 0 0 | 31 | 145 20 12 16 --- 9 7 0 0 | ------|--------------------------------------| RMS | 242 59 17 20 19 48 15 0 | WRMS | 242 20 12 19 17 15 13 0 | MEDI | 164 13 12 18 18 13 11 0 |