Author: AC Coordinator / AIUB/CODE Ultra Rapid IGS Orbit Comparison - Week 1151 Day: 4 Hour: 00 (Jan 31, 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 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 1.1151.4 GPS week: 1151 Day: 4 MJD: 52305.0 CENT STA| DX DY DZ RX RY RZ SCL RMS WRMS | TOFT TDRFT RMS --------|------------------------------------------------|--------------------- brd n/a|0.13 0.29-0.10 3.41 1.54 -1.82 16.6 1.94 1.94 | 0.3 -3.3 5.93 cou n/a|-.04 0.00-0.01 0.50 -2.09 -3.88 -0.5 4.94 0.19 | 1.1 -12.6 19.70 emu n/a|0.01-0.02-0.01 0.13 -0.59 0.71 -0.7 0.17 0.11 | 0.0 0.0 0.00 jpu n/a|-.01 0.02 0.02 0.52 -0.94 -0.03 0.5 0.23 0.23 | 0.0 0.0 0.00 siu n/a|0.00-0.01-0.03 -0.02 -1.23 0.80 0.1 0.20 0.22 | 0.0 0.0 0.00 usu n/a|0.00 0.00 0.00 -0.14 -1.28 -0.56 0.2 0.16 0.14 | 679.4 -7.2 5.81 igu n/a|0.01-0.02-0.02 0.05 -0.96 0.68 0.0 0.14 0.16 | -0.7 -7.7 5.81 igr n/a|0.00 0.00 0.00 0.00 0.00 0.00 0.0 0.00 0.00 | 0.5 -6.5 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 2.1151.4 GPS week: 1151 Day: 4 MJD: 52305.0 Weighted Average PRN | brd cou emu jpu siu usu igu igr IGR | ------|--------------------------------------| 1 | 228 6 8 13 14 8 6 0 0 | 2 | 176 62 27 18 21 28 24 0 0 | 3 | 154 11 12 32 14 12 5 0 0 | 4E | 126 18 26 39 22 26 15 0 0 | 5 | 314 11 7 11 6 5 6 0 0 | 6 | 206 30 2 10 19 7 5 0 0 | 7 | 237 7 14 6 26 21 7 0 0 | 8 | 122 7 23 24 29 22 26 0 0 | 9 | 117 16 5 36 6 6 7 0 0 | 10 | 113 8 6 21 23 14 7 0 0 | 11E | 110 30 15 31 19 17 9 0 0 | 13 | 108 17 15 14 11 27 11 0 0 | 14 | 87 8 14 31 25 16 19 0 0 | 15E | 326 >>> --- --- --- --- --- 0 0 | 17E | 156 551 --- --- --- --- --- 0 0 | 18 | 94 20 18 --- 14 9 15 0 0 | 20 | 126 8 7 --- 10 16 8 0 0 | 21 | 325 >>> --- --- --- --- --- 0 0 | 22 | 186 5 10 13 4 7 7 0 0 | 23 | 225 13 5 24 36 47 16 0 0 | 24E | 226 46 60 30 61 --- 50 0 0 | 25 | 119 13 21 13 6 7 9 0 0 | 26 | 134 19 5 11 11 19 6 0 0 | 27 | 203 9 6 43 15 8 13 0 0 | 28 | 82 9 5 34 16 11 8 0 0 | 29 | 210 212 --- 42 --- --- --- 0 0 | 30 | 163 19 9 19 15 6 6 0 0 | 31 | 337 11 5 18 11 8 5 0 0 | ------|--------------------------------------| RMS | 194 494 17 23 20 16 14 0 | WRMS | 194 19 11 23 22 14 16 0 | MEDI | 160 15 10 21 15 12 8 0 |