Author: AC Coordinator / AIUB/CODE Ultra Rapid IGS Orbit Comparison - Week 1172 Day: 0 Hour: 00 (Jun 23, 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 1.1172.0 GPS week: 1172 Day: 0 MJD: 52448.0 CENT STA| DX DY DZ RX RY RZ SCL RMS WRMS | TOFT TDRFT RMS --------|------------------------------------------------|--------------------- brd n/a|-.03 0.33 0.23 -4.76 -3.20 1.99 10.0 3.26 3.26 | -1.9 5.6 8.58 cou n/a|-.01-0.04 0.03 0.53 2.33 -8.70 -0.799.9999.99 | -2.4 0.3 15.71 emu n/a|-.01 0.00 0.02 0.96 -0.01 -1.44 -0.1 0.13 0.10 | 0.0 0.0 0.00 esu n/a|0.00 0.00 0.02 -1.27 0.90 -1.14 0.4 7.70 0.37 | -792.0 4.1 10.74 gfu n/a|0.01 0.03 0.00 1.03 0.36 -0.23 -0.1 0.15 0.10 | -3.5 2.9 4.13 jpu n/a|0.03 0.01-0.02 -1.64 0.45 0.70 0.3 0.23 0.19 | 0.0 0.0 0.00 siu n/a|-.01 0.03 0.02 1.28 -0.08 -3.03 0.2 0.15 0.17 | 0.0 0.0 0.00 usu n/a|0.00 0.01 0.01 0.55 -0.38 -1.93 0.8 0.24 0.13 | -607.9 -24.4 3.84 igu n/a|0.00 0.00 0.01 0.87 0.16 -1.51 0.1 0.13 0.10 | -4.6 -0.9 3.62 igr n/a|0.00 0.00 0.00 0.00 0.00 0.00 0.0 0.00 0.00 | -4.0 10.4 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 2.1172.0 GPS week: 1172 Day: 0 MJD: 52448.0 Weighted Average PRN | brd cou emu esu gfu jpu siu usu igu igr IGR | ------|----------------------------------------------| 1E | 372 19 19 39 38 57 43 49 33 0 0 | 2 | 87 --- --- --- 4 --- --- --- --- 0 0 | 3 | 150 13 18 15 7 11 7 11 6 0 0 | 4 | 89 8 14 34 7 13 9 12 7 0 0 | 5 | 325 9 6 12 9 13 7 14 5 0 0 | 6 | 388 16 9 54 11 11 10 10 7 0 0 | 7 | 219 9 8 8 7 11 12 11 6 0 0 | 8 | 221 20 6 43 11 19 9 12 6 0 0 | 9 | 154 14 9 17 5 16 12 8 4 0 0 | 10 | 128 37 11 30 5 16 7 7 5 0 0 | 11 | 89 25 12 26 13 29 16 13 10 0 0 | 13E | 276 >>> --- --- --- --- --- --- --- 0 0 | 14E | 137 11 15 29 16 19 13 26 10 0 0 | 15 | 378 --- 10 --- 21 17 13 11 11 0 0 | 17 | >>> --- --- >>> --- --- --- --- --- 0 0 | 18 | 96 80 8 75 7 44 9 16 7 0 0 | 20 | 120 21 13 31 4 23 3 11 4 0 0 | 21 | 104 --- --- 40 8 --- --- --- --- 0 0 | 22 | 152 7 10 12 5 16 9 12 4 0 0 | 23 | 228 22 9 --- 8 14 10 64 14 0 0 | 24 | 167 863 --- 242 --- 46 --- --- --- 0 0 | 25 | 117 29 5 17 3 12 10 26 4 0 0 | 26E | 183 25 13 34 24 6 13 20 12 0 0 | 27 | 311 10 4 39 22 28 --- 23 9 0 0 | 28 | 232 13 19 19 7 22 10 11 10 0 0 | 29E | 134 13 41 37 43 17 51 72 46 0 0 | 30 | 77 12 5 12 5 11 9 18 4 0 0 | 31 | 336 22 11 10 9 46 10 9 8 0 0 | ------|----------------------------------------------| RMS | 326 >>> 13 770 15 23 15 24 13 0 | WRMS | 326 >>> 10 37 10 19 17 13 10 0 | MEDI | 161 18 10 31 8 17 10 12 7 0 |