Author: AC Coordinator / AIUB/CODE Ultra Rapid IGS Orbit Comparison - Week 1163 Day: 4 Hour: 00 (Apr 25, 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 1.1163.4 GPS week: 1163 Day: 4 MJD: 52389.0 CENT STA| DX DY DZ RX RY RZ SCL RMS WRMS | TOFT TDRFT RMS --------|------------------------------------------------|--------------------- brd n/a|0.12 0.17 0.24 -1.23 -2.94 -5.62 5.6 2.19 2.19 | 1.0 -0.8 15.44 cou n/a|0.01 0.00 0.02 0.11 -0.88 -0.40 -0.5 0.17 0.19 | -3.6 -2.7 23.90 emu n/a|0.02-0.02 0.02 -0.24 0.00 0.23 -0.4 0.21 0.10 | 0.0 0.0 0.00 esu n/a|0.01 0.00 0.02 1.41 -0.77 1.07 0.3 0.30 0.25 | 1509.7 22.1 5.86 gfu n/a|0.00-0.01-0.01 0.26 -0.26 0.42 -0.2 0.22 0.22 | 0.7 -0.2 13.19 jpu n/a|-.06-0.06 0.03 -0.53 0.45 0.95 0.4 0.27 0.26 | 0.0 0.0 0.00 siu n/a|0.01 0.03 0.01 -0.34 -0.01 2.22 0.1 0.16 0.18 | 0.0 0.0 0.00 usu n/a|0.00 0.00-0.01 -0.55 0.17 1.28 0.3 0.37 0.12 | 164.3 -13.1 6.05 igu n/a|0.01-0.01 0.01 -0.05 -0.12 0.73 -0.1 0.16 0.12 | -3.2 -0.9 12.54 igr n/a|0.00 0.00 0.00 0.00 0.00 0.00 0.0 0.00 0.00 | -1.7 4.3 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 2.1163.4 GPS week: 1163 Day: 4 MJD: 52389.0 Weighted Average PRN | brd cou emu esu gfu jpu siu usu igu igr IGR | ------|----------------------------------------------| 1 | 192 7 8 15 8 13 9 9 3 0 0 | 2 | 165 --- --- --- 83 --- --- --- --- 0 0 | 3 | 90 7 8 31 7 38 4 9 3 0 0 | 4 | 143 21 8 17 3 15 13 16 4 0 0 | 5 | 205 5 11 12 8 30 6 9 7 0 0 | 6 | 471 14 3 24 9 23 31 7 8 0 0 | 7 | 86 10 6 13 8 43 11 6 2 0 0 | 8 | 117 12 7 24 11 12 8 11 8 0 0 | 9 | 248 7 23 25 37 21 16 19 25 0 0 | 10E | 143 17 37 26 17 23 32 145 30 0 0 | 11 | 121 17 4 59 11 16 12 11 7 0 0 | 13 | 157 9 5 31 10 20 10 10 6 0 0 | 14 | 257 33 7 18 10 28 21 12 4 0 0 | 15 | 410 --- 83 --- 7 --- --- 33 48 0 0 | 17 | 76 --- --- --- 18 --- --- --- --- 0 0 | 18E | 143 7 7 73 24 --- 14 20 12 0 0 | 20E | 109 42 13 63 29 17 20 81 24 0 0 | 21E | 160 --- --- --- --- --- --- --- --- 0 0 | 22 | 203 6 15 65 10 18 12 13 14 0 0 | 23E | 394 53 46 --- 31 89 21 78 31 0 0 | 24 | 74 9 12 18 7 16 6 8 8 0 0 | 25 | 88 6 4 12 6 19 22 15 6 0 0 | 26 | 105 10 7 16 11 21 21 7 10 0 0 | 27 | 340 16 3 21 12 14 15 7 4 0 0 | 28 | 291 9 10 20 22 38 23 13 14 0 0 | 29 | 105 14 14 20 28 14 29 5 19 0 0 | 30 | 137 15 4 10 7 37 9 6 3 0 0 | 31 | 316 6 8 --- 7 10 16 13 5 0 0 | ------|----------------------------------------------| RMS | 219 17 21 30 22 27 16 37 16 0 | WRMS | 219 19 10 25 22 26 18 12 12 0 | MEDI | 150 10 8 21 10 20 15 11 8 0 |