Author: AC Coordinator / AIUB/CODE Ultra Rapid IGS Orbit Comparison - Week 1187 Day: 2 Hour: 00 (Oct 08, 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 1.1187.2 GPS week: 1187 Day: 2 MJD: 52555.0 CENT STA| DX DY DZ RX RY RZ SCL RMS WRMS | TOFT TDRFT RMS --------|------------------------------------------------|--------------------- brd n/a|0.57 0.52-0.01 0.70 0.75 -4.71 16.0 3.55 3.55 | -1.9 5.7 12.30 cou n/a|-.03 0.01-0.01 -0.45 -0.44 -2.98 -0.1 9.13 0.21 | -0.7 1.2 88.64 emu n/a|0.00-0.02-0.01 -0.23 0.21 -1.62 -0.4 0.21 0.10 | 0.0 0.0 0.00 esu n/a|0.03 0.00 0.05 -0.98 1.94 -0.39 0.2 0.29 0.28 |-3610.7 -41.5 6.25 gfu n/a|-.01 0.00-0.02 -0.01 -0.25 -0.30 0.0 0.18 0.12 | -2.3 -2.3 5.52 siu n/a|-.02-0.03-0.02 -0.31 -1.14 -1.43 -0.3 1.19 0.24 | 0.0 0.0 0.00 usu n/a|0.01-0.03 0.01 -0.69 -0.14 -0.94 0.0 0.30 0.17 |-3611.0 -38.9 4.18 igu n/a|0.01-0.01 0.00 -0.37 0.24 -0.76 0.0 0.17 0.12 | 1.9 4.5 4.57 igr n/a|0.00 0.00 0.00 0.00 0.00 0.00 0.0 0.00 0.00 | -1.3 2.0 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 2.1187.2 GPS week: 1187 Day: 2 MJD: 52555.0 Weighted Average PRN | brd cou emu esu gfu siu usu igu igr IGR | ------|------------------------------------------| 1 | 167 11 6 17 4 15 11 8 0 0 | 2E | 191 135 12 --- 25 --- --- --- 0 0 | 3 | 105 6 13 17 12 18 35 15 0 0 | 4 | 257 9 20 9 9 9 12 7 0 0 | 5E | 193 15 18 25 21 65 26 18 0 0 | 6 | 443 20 12 17 16 --- 16 14 0 0 | 7 | 149 21 42 14 6 18 8 8 0 0 | 8 | 317 17 79 14 12 9 6 11 0 0 | 9 | 140 10 8 32 9 56 10 13 0 0 | 10E | 182 26 9 33 12 14 17 4 0 0 | 11 | 70 7 13 19 14 35 9 11 0 0 | 13 | 117 4 12 27 7 22 15 14 0 0 | 14 | 250 29 11 14 14 45 11 4 0 0 | 15 | 279 150 7 --- 3 --- --- --- 0 0 | 17 | >>> >>> 26 --- --- 598 --- --- 0 0 | 18E | 180 16 7 22 14 49 21 17 0 0 | 20E | 110 46 15 16 --- 20 22 15 0 0 | 22E | 173 22 12 19 27 18 26 13 0 0 | 23E | 419 23 15 --- 35 69 43 33 0 0 | 24 | 120 68 17 10 11 21 37 17 0 0 | 25 | 53 16 5 13 12 31 10 5 0 0 | 26 | 140 5 7 12 10 21 6 5 0 0 | 27 | 72 12 4 12 10 27 6 6 0 0 | 28E | 112 60 8 122 28 --- 128 54 0 0 | 29 | 132 264 7 8 6 --- --- 5 0 0 | 30E | 180 30 28 18 52 --- --- 27 0 0 | 31 | 100 17 4 19 16 9 7 6 0 0 | ------|------------------------------------------| RMS | 355 913 21 29 18 119 30 17 0 | WRMS | 355 21 10 27 12 24 17 12 0 | MEDI | 167 20 12 17 12 21 14 12 0 |