Author: AC Coordinator / AIUB/CODE Ultra Rapid IGS Orbit Comparison - Week 1156 Day: 1 Hour: 00 (Mar 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 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 1.1156.1 GPS week: 1156 Day: 1 MJD: 52337.0 CENT STA| DX DY DZ RX RY RZ SCL RMS WRMS | TOFT TDRFT RMS --------|------------------------------------------------|--------------------- brd n/a|-.10-0.05 0.09 -1.45 -1.41 -2.40 8.2 2.73 2.73 | -1.5 9.4 6.83 cou n/a|0.06-0.02-0.02 0.34 1.32 0.46 -0.116.53 0.94 | -4.4 -4.5 24.11 emu n/a|0.00-0.01 0.01 0.47 -0.45 -1.35 -0.8 3.16 0.93 | 0.0 0.0 0.00 esu n/a|0.03-0.01 0.02 -0.32 -0.37 -0.43 -0.3 0.18 0.19 | 509.2 20.1 5.84 gfu n/a|-.01 0.00 0.00 0.24 0.55 0.22 -0.2 2.95 3.39 | -0.1 3.8 5.51 siu n/a|-.01 0.01-0.01 -0.39 0.26 -2.16 -0.9 0.16 0.17 | 0.0 0.0 0.00 usu n/a|0.03-0.02 0.00 0.07 0.01 -1.21 0.1 3.10 0.20 | 571.6 0.3 4.16 igu n/a|0.00-0.01 0.00 0.10 0.18 -0.98 -0.6 3.06 0.47 | -5.1 -3.1 4.61 igr n/a|0.00 0.00 0.00 0.00 0.00 0.00 0.0 0.00 0.00 | -1.5 5.5 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 2.1156.1 GPS week: 1156 Day: 1 MJD: 52337.0 Weighted Average PRN | brd cou emu esu gfu siu usu igu igr IGR | ------|------------------------------------------| 1 | 241 6 7 15 10 5 15 4 0 0 | 2 | 219 >>> --- --- --- --- --- --- 0 0 | 3 | 137 11 12 22 8 19 6 9 0 0 | 4 | 164 13 14 13 4 8 19 7 0 0 | 5 | 186 16 10 16 4 11 20 4 0 0 | 6 | 183 11 10 --- 3 12 12 4 0 0 | 7 | 100 21 10 20 7 16 13 8 0 0 | 8E | 191 18 26 18 18 47 41 28 0 0 | 9E | 167 61 52 25 14 16 58 32 0 0 | 10 | 107 33 10 25 5 10 36 6 0 0 | 11 | 148 8 32 23 8 6 6 7 0 0 | 13 | 151 17 11 16 7 8 24 8 0 0 | 14 | 127 10 13 19 10 6 26 9 0 0 | 15 | >>> >>> >>> --- >>> --- >>> >>> 0 0 | 17 | 279 >>> --- --- --- --- --- --- 0 0 | 18 | 227 7 7 14 3 15 15 7 0 0 | 20 | 137 10 21 18 5 11 17 13 0 0 | 21 | 387 >>> --- --- --- --- --- --- 0 0 | 22 | 131 6 8 14 21 7 18 11 0 0 | 23 | 310 21 29 --- 6 13 48 12 0 0 | 24 | 100 56 20 16 20 15 52 15 0 0 | 25 | 263 114 11 18 22 20 39 19 0 0 | 26 | 132 7 14 22 5 12 9 7 0 0 | 27 | 75 90 44 22 11 21 122 14 0 0 | 28 | 177 10 10 36 7 17 13 9 0 0 | 29 | 114 18 24 29 30 33 13 27 0 0 | 30 | 117 5 9 17 10 9 10 4 0 0 | 31 | 78 8 10 25 6 6 14 4 0 0 | ------|------------------------------------------| RMS | 273 >>> 316 18 295 16 310 306 0 | WRMS | 273 94 93 19 339 17 20 47 0 | MEDI | 158 17 12 19 8 12 18 9 0 |