Author: AC Coordinator / AIUB/CODE Ultra Rapid IGS Orbit Comparison - Week 1180 Day: 5 Hour: 12 (Aug 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 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 1.1180.5 GPS week: 1180 Day: 5 MJD: 52509.5 CENT STA| DX DY DZ RX RY RZ SCL RMS WRMS | TOFT TDRFT RMS --------|------------------------------------------------|--------------------- brd |-.38-0.47-0.09 3.12 1.63 5.17 12.8 3.50 3.50 | 1.5 0.2 8.20 cou n/a|-.01-0.01 0.00 0.59 -0.12 0.24 -0.4 0.20 0.08 | 1.8 -3.8 17.69 emu n/a|-.01-0.03 0.02 -0.14 -0.24 1.21 -0.2 2.31 0.12 | 0.0 0.0 0.00 esu n/a|-.01 0.02-0.01 -1.26 -0.30 -0.04 0.2 2.76 0.15 | 279.2 9.9 8.88 gfu n/a|0.00-0.01 0.01 0.02 -0.27 0.34 -0.7 2.33 0.68 | -0.2 -3.0 10.62 jpu n/a|0.01-0.04 0.02 0.15 0.33 -0.02 0.5 1.28 0.29 | 0.0 0.0 0.00 usu n/a|-.04-0.03 0.02 -0.39 -0.49 0.83 -0.5 2.52 0.21 |-1912.9 -31.0 7.21 igu n/a|-.02-0.01 0.01 -0.21 -0.22 0.57 -0.1 2.31 0.49 | -1.0 -1.1 8.54 igr n/a|0.00 0.00 0.00 0.00 0.00 0.00 0.0 0.00 0.00 | 0.6 0.7 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 2.1180.5 GPS week: 1180 Day: 5 MJD: 52509.5 Weighted Average PRN | brd cou emu esu gfu jpu usu igu igr IGR | ------|------------------------------------------| 1 | 261 4 8 10 10 10 12 8 0 0 | 2 | 174 --- 30 --- 34 17 43 29 0 0 | 3 | 123 4 6 6 7 16 13 4 0 0 | 4 | 144 11 8 15 5 7 19 5 0 0 | 5 | 118 4 10 4 15 14 12 5 0 0 | 6 | 284 8 16 23 23 9 13 16 0 0 | 7 | 242 12 5 15 5 19 36 8 0 0 | 8E | 268 8 23 30 40 8 50 21 0 0 | 9E | 117 97 26 22 32 15 71 20 0 0 | 10 | 146 5 7 12 4 5 10 3 0 0 | 11 | 204 10 34 16 10 17 21 20 0 0 | 13 | 130 6 7 23 4 22 14 8 0 0 | 14 | 95 4 8 23 18 27 8 6 0 0 | 15 | 230 --- 25 --- 3 28 13 16 0 0 | 17E | >>> --- >>> >>> >>> --- >>> >>> 0 0 | 18 | 114 4 14 20 6 18 16 7 0 0 | 20 | 229 17 7 16 6 11 12 6 0 0 | 21 | >>> --- --- 822 --- 672 --- --- 0 0 | 22 | 95 6 4 18 7 16 8 3 0 0 | 23 | 352 14 25 --- 8 10 53 16 0 0 | 24 | 261 --- 7 19 8 14 39 6 0 0 | 25E | 342 6 10 30 14 16 28 7 0 0 | 26 | 201 7 13 12 10 8 10 6 0 0 | 27E | 180 27 12 38 27 4 57 12 0 0 | 28 | 165 19 6 17 15 12 27 8 0 0 | 29 | 192 4 10 32 6 7 13 2 0 0 | 30 | 101 6 11 8 11 13 9 5 0 0 | 31 | 270 6 5 11 4 --- 10 4 0 0 | ------|------------------------------------------| RMS | 350 20 231 276 233 128 252 231 0 | WRMS | 350 8 12 15 68 29 21 49 0 | MEDI | 197 6 10 18 10 14 14 7 0 |