Author: AC Coordinator / AIUB/CODE Ultra Rapid IGS Orbit Comparison - Week 1187 Day: 0 Hour: 00 (Oct 06, 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 1.1187.0 GPS week: 1187 Day: 0 MJD: 52553.0 CENT STA| DX DY DZ RX RY RZ SCL RMS WRMS | TOFT TDRFT RMS --------|------------------------------------------------|--------------------- brd n/a|0.12 0.67 0.16 1.31 -1.76 -3.71 13.6 2.52 2.52 | 0.1 1.7 7.17 cou n/a|0.02-0.01 0.01 -0.77 0.84 0.01 -0.5 7.40 0.15 | -4.4 -0.6 25.43 emu n/a|0.02-0.01 0.01 0.04 -0.15 -0.31 -0.4 0.87 0.11 | 0.0 0.0 0.00 esu n/a|-.02 0.03-0.03 -2.11 -1.07 -1.86 1.0 0.43 0.22 |-3527.5 -40.4 5.76 gfu n/a|-.01-0.01 0.03 0.48 -0.41 0.36 -0.1 0.30 0.23 | 0.0 0.0 0.00 siu n/a|0.03-0.04 0.04 0.82 0.54 2.25 0.4 2.54 2.63 | 0.0 0.0 0.00 usu n/a|0.03-0.02 0.04 0.04 0.28 1.30 -0.3 0.36 0.15 |-2668.1 -93.0 5.53 igu n/a|0.01-0.02 0.03 0.03 -0.26 -0.05 0.1 0.25 0.17 | -3.2 -1.6 4.58 igr n/a|0.00 0.00 0.00 0.00 0.00 0.00 0.0 0.00 0.00 | -0.7 1.0 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 2.1187.0 GPS week: 1187 Day: 0 MJD: 52553.0 Weighted Average PRN | brd cou emu esu gfu siu usu igu igr IGR | ------|------------------------------------------| 1 | 106 6 4 16 13 30 9 6 0 0 | 2E | 126 21 23 --- 23 83 --- 23 0 0 | 3 | 296 16 3 31 7 29 8 3 0 0 | 4 | 205 10 4 12 8 22 23 6 0 0 | 5E | 238 48 41 34 37 31 105 49 0 0 | 6 | 353 8 3 22 4 --- 21 4 0 0 | 7E | 135 23 3 27 31 53 26 4 0 0 | 8E | 122 11 10 9 24 18 8 8 0 0 | 9 | 134 10 5 22 13 60 8 11 0 0 | 10E | 235 9 9 59 15 110 21 6 0 0 | 11 | 90 34 11 58 24 31 11 15 0 0 | 13 | 120 10 10 23 11 30 16 14 0 0 | 14 | 185 8 12 33 14 119 11 7 0 0 | 15 | 897 >>> --- --- --- >>> --- --- 0 0 | 17 | 246 767 29 60 42 --- --- 38 0 0 | 18E | 238 7 8 20 48 50 15 9 0 0 | 20E | 116 27 11 28 30 26 14 6 0 0 | 22E | 92 8 12 19 42 59 55 26 0 0 | 23E | 285 20 14 --- 14 87 33 15 0 0 | 24 | 137 47 32 19 7 30 34 23 0 0 | 25 | 245 9 3 29 5 285 10 15 0 0 | 26 | 158 6 7 16 10 70 8 5 0 0 | 27 | 73 16 4 15 53 40 7 16 0 0 | 28E | 150 25 10 17 35 19 26 8 0 0 | 29 | 121 823 427 154 --- 187 --- --- 0 0 | 30E | 86 10 132 23 86 18 116 95 0 0 | 31 | 201 19 4 81 11 20 29 17 0 0 | ------|------------------------------------------| RMS | 252 740 87 43 30 254 36 25 0 | WRMS | 252 15 11 22 23 264 15 17 0 | MEDI | 150 16 10 23 15 40 16 11 0 |