Author: AC Coordinator / AIUB/CODE Ultra Rapid IGS Orbit Comparison - Week 1185 Day: 3 Hour: 00 (Sep 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 GFU JPU SIU 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 1.1185.3 GPS week: 1185 Day: 3 MJD: 52542.0 CENT STA| DX DY DZ RX RY RZ SCL RMS WRMS | TOFT TDRFT RMS --------|------------------------------------------------|--------------------- brd n/a|0.23 0.47 0.30 4.41 -1.41 10.71 9.1 2.60 2.60 | -1.6 -3.0 5.96 cou n/a|-.04-0.02 0.00 0.99 -1.19 -0.29 0.210.07 0.28 | -0.2 -5.4 21.32 emu n/a|-.02 0.01 0.01 0.20 -0.27 0.21 0.9 1.79 0.34 | 0.0 0.0 0.00 gfu n/a|0.03 0.02 0.01 0.23 -0.32 -1.20 0.0 0.28 0.16 | 3.7 3.8 4.86 jpu n/a|-.01 0.01 0.01 0.50 -0.23 -0.56 0.4 0.78 0.35 | 0.0 0.0 0.00 siu n/a|0.01 0.03 0.03 -0.04 -0.66 0.61 0.0 0.32 0.20 | 0.0 0.0 0.00 igu n/a|0.01 0.02 0.01 0.13 -0.53 -0.22 -0.2 0.25 0.25 | 3.1 1.8 4.86 igr n/a|0.00 0.00 0.00 0.00 0.00 0.00 0.0 0.00 0.00 | -0.7 -2.8 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 2.1185.3 GPS week: 1185 Day: 3 MJD: 52542.0 Weighted Average PRN | brd cou emu gfu jpu siu igu igr IGR | ------|--------------------------------------| 1 | 107 11 5 18 17 8 6 0 0 | 2E | 195 >>> --- 38 43 --- 19 0 0 | 3 | 229 8 6 8 15 15 4 0 0 | 4 | 91 11 6 13 11 19 10 0 0 | 5E | 218 135 119 124 99 127 120 0 0 | 6 | 341 19 6 16 20 8 10 0 0 | 7 | 183 13 6 9 38 15 10 0 0 | 8 | 157 7 6 19 8 17 12 0 0 | 9 | 65 21 7 9 16 9 7 0 0 | 10E | 184 41 13 18 62 17 12 0 0 | 11 | 91 10 5 15 25 12 9 0 0 | 13 | 121 12 4 10 12 10 8 0 0 | 14 | 95 9 10 8 26 19 7 0 0 | 15 | 232 159 27 21 27 14 4 0 0 | 17 | 642 >>> --- --- --- --- --- 0 0 | 18 | 154 14 15 28 22 23 20 0 0 | 20E | 153 97 12 33 24 6 17 0 0 | 21E | 723 >>> 298 --- 323 --- --- 0 0 | 22E | 106 31 12 19 11 11 11 0 0 | 23 | 244 17 19 11 22 17 8 0 0 | 24 | 145 24 9 8 26 17 11 0 0 | 25 | 86 12 14 4 33 13 12 0 0 | 26 | 132 9 8 8 10 85 28 0 0 | 27 | 137 11 5 10 14 20 10 0 0 | 28E | 223 44 11 20 27 33 15 0 0 | 29 | 491 828 889 --- 207 --- --- 0 0 | 30E | 99 22 8 17 8 9 9 0 0 | 31 | 158 9 6 11 12 5 5 0 0 | ------|--------------------------------------| RMS | 260 >>> 179 28 78 32 25 0 | WRMS | 260 28 34 16 35 20 25 0 | MEDI | 156 18 9 15 22 15 10 0 |