Author: AC Coordinator / AIUB/CODE Ultra Rapid IGS Orbit Comparison - Week 1177 Day: 5 Hour: 12 (Aug 02, 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 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 1.1177.5 GPS week: 1177 Day: 5 MJD: 52488.5 CENT STA| DX DY DZ RX RY RZ SCL RMS WRMS | TOFT TDRFT RMS --------|------------------------------------------------|--------------------- brd |-.47-0.49-0.06 -0.32 1.25 6.41 11.4 3.47 3.47 | 0.0 2.3 6.49 cou n/a|-.04 0.01-0.01 -1.08 0.00 1.67 0.0 2.16 0.10 | 0.7 -5.4 17.98 esu n/a|-.02 0.01 0.01 -0.64 -0.32 0.87 0.0 2.05 0.20 | 54.9 5.8 5.64 gfu n/a|0.02 0.00 0.02 0.90 0.26 -0.45 0.1 0.13 0.13 | -1.7 -4.2 6.18 jpu n/a|0.00 0.08 0.00 -1.21 -0.82 -0.08 -0.3 0.27 0.16 | 0.0 0.0 0.00 siu n/a|0.05 0.08-0.02 -0.94 1.99 -1.26 -0.6 1.95 0.50 | 0.0 0.0 0.00 usu n/a|-.04 0.03-0.01 -0.91 0.73 -0.30 0.3 1.88 0.22 |-1216.2 -35.4 4.34 igu n/a|-.02 0.02 0.02 -0.34 0.26 -0.07 -0.1 1.95 0.36 | 0.7 -0.6 5.33 igr n/a|0.00 0.00 0.00 0.00 0.00 0.00 0.0 0.00 0.00 | 0.0 -1.3 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 2.1177.5 GPS week: 1177 Day: 5 MJD: 52488.5 Weighted Average PRN | brd cou esu gfu jpu siu usu igu igr IGR | ------|------------------------------------------| 1 | 274 12 18 18 14 19 7 13 0 0 | 2 | 104 --- --- 9 --- --- --- --- 0 0 | 3 | 128 5 10 12 15 31 10 5 0 0 | 4E | 168 4 22 24 28 25 22 15 0 0 | 5 | 165 5 37 9 21 29 10 15 0 0 | 6 | 474 7 37 12 11 16 17 13 0 0 | 7 | 73 4 18 9 15 47 7 11 0 0 | 8 | 108 9 8 10 18 10 10 5 0 0 | 9E | 88 9 21 8 17 34 20 5 0 0 | 10 | 112 6 7 5 19 19 8 4 0 0 | 11E | 231 18 19 11 10 22 16 9 0 0 | 13 | 157 9 18 9 15 17 12 6 0 0 | 14 | 123 4 18 5 20 68 10 9 0 0 | 15E | 361 --- --- --- 16 --- --- --- 0 0 | 17E | 981 --- >>> --- --- >>> 988 >>> 0 0 | 18 | 143 14 33 9 19 15 34 6 0 0 | 20 | 169 13 27 8 13 41 14 12 0 0 | 21 | 179 --- 24 --- 11 --- --- --- 0 0 | 22 | 155 5 25 7 19 26 21 9 0 0 | 23 | 251 4 --- 10 14 27 60 19 0 0 | 24E | >>> >>> 89 --- 107 --- --- --- 0 0 | 25E | 191 20 46 38 35 26 73 33 0 0 | 26 | 77 4 14 10 10 31 8 6 0 0 | 27E | 120 10 10 20 35 13 12 4 0 0 | 28 | 106 9 9 13 8 32 9 8 0 0 | 29 | 123 14 9 13 20 33 17 13 0 0 | 30 | 163 4 31 5 10 41 8 13 0 0 | 31 | 397 8 24 5 13 32 8 8 0 0 | ------|------------------------------------------| RMS | 347 216 205 13 27 195 188 195 0 | WRMS | 347 10 20 13 16 50 22 36 0 | MEDI | 160 9 21 10 16 28 12 9 0 |