Author: AC Coordinator / AIUB/CODE Ultra Rapid IGS Orbit Comparison - Week 1173 Day: 6 Hour: 12 (Jul 06, 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 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 1.1173.6 GPS week: 1173 Day: 6 MJD: 52461.5 CENT STA| DX DY DZ RX RY RZ SCL RMS WRMS | TOFT TDRFT RMS --------|------------------------------------------------|--------------------- brd |-.26-0.34 0.40 -0.71 6.19-14.56 1.2 2.82 2.82 | 1.4 -1.1 7.13 cou n/a|0.00 0.02 0.02 0.80 0.17 0.02 -0.3 2.79 0.17 | 1.1 -2.5 10.83 emu n/a|0.02-0.01-0.01 0.42 -0.23 -0.14 -0.7 3.22 1.59 | 0.0 0.0 0.00 esu n/a|-.01-0.01-0.01 -2.14 -0.66 1.25 0.7 0.19 0.12 | -91.1 -10.1 7.69 gfu n/a|0.02 0.00 0.02 0.28 -0.17 1.16 -0.2 0.19 0.18 | 0.5 -0.4 6.75 jpu n/a|-.02-0.01 0.01 -0.87 0.56 -0.20 0.6 0.55 0.22 | 0.0 0.0 0.00 usu n/a|0.01 0.03 0.00 1.00 0.68 1.43 0.1 3.23 0.40 | -993.1 -23.8 4.17 igu n/a|0.00 0.00 0.02 -0.30 -0.04 0.64 0.2 0.12 0.09 | -1.1 -4.4 6.46 igr n/a|0.00 0.00 0.00 0.00 0.00 0.00 0.0 0.00 0.00 | 0.7 -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 2.1173.6 GPS week: 1173 Day: 6 MJD: 52461.5 Weighted Average PRN | brd cou emu esu gfu jpu usu igu igr IGR | ------|------------------------------------------| 1E | 394 25 6 20 32 13 25 14 0 0 | 2 | 174 --- 14 --- 6 --- --- 7 0 0 | 3 | 97 10 7 14 17 15 9 5 0 0 | 4E | 171 60 35 9 69 59 121 43 0 0 | 5 | 175 23 13 15 12 18 13 2 0 0 | 6 | 352 4 8 11 14 15 9 4 0 0 | 7 | 121 7 7 18 8 18 7 9 0 0 | 8 | 371 4 6 16 5 17 17 9 0 0 | 9 | 207 14 8 9 5 34 5 7 0 0 | 10 | 264 11 6 28 6 18 21 6 0 0 | 11E | 208 4 13 9 26 24 10 18 0 0 | 13E | 182 3 11 30 19 13 17 7 0 0 | 14E | 270 7 17 24 11 21 19 8 0 0 | 15 | 445 --- 16 --- 5 15 --- 4 0 0 | 17 | 374 --- --- 24 --- --- --- --- 0 0 | 18 | 185 8 11 47 5 9 14 5 0 0 | 20 | 141 8 28 20 4 8 7 6 0 0 | 21 | 199 --- 821 --- --- --- 805 --- 0 0 | 22 | 121 6 3 13 4 14 13 3 0 0 | 23 | 272 6 4 --- 6 22 71 9 0 0 | 24 | 815 >>> >>> --- --- 273 >>> --- 0 0 | 25 | 208 6 6 9 4 9 5 3 0 0 | 26E | 94 55 46 25 26 8 49 17 0 0 | 27 | 166 14 9 39 6 --- 6 9 0 0 | 28 | 354 7 3 13 3 7 17 2 0 0 | 29E | 168 39 19 16 32 9 50 19 0 0 | 30 | 70 5 9 16 5 8 11 4 0 0 | 31 | 88 3 11 15 9 25 21 6 0 0 | ------|------------------------------------------| RMS | 282 279 322 19 19 55 323 12 0 | WRMS | 282 17 159 12 18 22 40 9 0 | MEDI | 192 8 11 16 6 15 17 7 0 |