Author: AC Coordinator / AIUB/CODE Ultra Rapid IGS Orbit Comparison - Week 1173 Day: 4 Hour: 00 (Jul 04, 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 JPU 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 1.1173.4 GPS week: 1173 Day: 4 MJD: 52459.0 CENT STA| DX DY DZ RX RY RZ SCL RMS WRMS | TOFT TDRFT RMS --------|------------------------------------------------|--------------------- brd n/a|0.26 0.09 0.12 2.08 -3.69 -9.27 8.8 3.00 3.00 | 0.6 0.4 6.12 cou n/a|-.01 0.00 0.01 -0.31 1.43 -1.72 -0.4 6.41 0.15 | 14.3 -23.3 605.40 emu n/a|0.01 0.00 0.01 -0.03 0.40 -0.01 -0.3 0.11 0.11 | 0.0 0.0 0.00 esu n/a|0.02-0.04-0.02 -0.32 0.58 -0.28 -0.2 0.22 0.11 | -77.5 -8.2 6.12 gfu n/a|0.00 0.00 0.01 0.25 0.46 0.80 -0.4 1.96 2.30 | -0.9 -1.0 6.27 jpu n/a|0.02-0.02-0.02 -0.61 0.24 -0.29 0.9 2.06 0.83 | 0.0 0.0 0.00 siu n/a|-.01 0.01 0.01 0.17 0.40 0.65 -0.2 0.18 0.19 | 0.0 0.0 0.00 usu n/a|-.02-0.01 0.00 -0.56 0.38 0.41 0.1 0.21 0.10 | -929.0 -23.6 5.03 igu n/a|0.01-0.01 0.00 -0.13 0.47 0.29 -0.3 0.09 0.08 | 14.6 -8.3 5.45 igr n/a|0.00 0.00 0.00 0.00 0.00 0.00 0.0 0.00 0.00 | 1.5 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 2.1173.4 GPS week: 1173 Day: 4 MJD: 52459.0 Weighted Average PRN | brd cou emu esu gfu jpu siu usu igu igr IGR | ------|----------------------------------------------| 1E | 535 19 15 9 14 8 20 21 10 0 0 | 2 | 159 --- --- --- 4 --- --- --- --- 0 0 | 3 | 160 3 12 21 10 13 7 6 4 0 0 | 4 | 140 8 12 8 4 22 17 8 4 0 0 | 5 | 162 5 4 6 6 21 5 5 4 0 0 | 6 | 318 9 10 10 8 23 7 11 6 0 0 | 7 | 118 7 14 14 16 37 15 8 7 0 0 | 8 | 249 19 12 14 13 30 17 18 11 0 0 | 9 | 141 11 11 5 9 16 7 7 4 0 0 | 10 | 167 10 12 10 5 14 13 9 3 0 0 | 11E | 251 20 20 18 9 14 10 23 10 0 0 | 13E | 198 8 11 12 19 10 34 16 10 0 0 | 14E | 192 5 15 23 15 15 11 23 14 0 0 | 15 | >>> --- --- --- >>> >>> --- --- --- 0 0 | 17 | 331 --- 26 9 15 --- 36 23 20 0 0 | 18 | 287 17 7 35 7 29 9 8 6 0 0 | 20 | 146 3 7 27 9 12 13 7 6 0 0 | 21 | 287 --- --- 69 --- --- --- --- --- 0 0 | 22 | 72 8 4 18 13 16 8 3 5 0 0 | 23 | 364 18 7 --- 13 20 20 55 13 0 0 | 24 | 234 >>> --- --- --- 20 --- --- --- 0 0 | 25 | 214 4 3 8 10 12 6 8 4 0 0 | 26E | 124 29 19 55 18 9 9 16 11 0 0 | 27 | 239 14 9 31 11 --- 19 23 10 0 0 | 28 | 232 8 6 9 10 39 34 7 12 0 0 | 29E | 134 94 15 16 11 12 39 72 9 0 0 | 30 | 175 12 8 10 7 7 11 12 6 0 0 | 31 | 141 13 5 9 6 45 19 8 8 0 0 | ------|----------------------------------------------| RMS | 300 641 11 22 196 206 18 21 9 0 | WRMS | 300 15 11 11 230 83 19 10 8 0 | MEDI | 195 11 11 13 10 16 13 10 8 0 |