Author: AC Coordinator / AIUB/CODE Ultra Rapid IGS Orbit Comparison - Week 1150 Day: 0 Hour: 00 (Jan 20, 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 1.1150.0 GPS week: 1150 Day: 0 MJD: 52294.0 CENT STA| DX DY DZ RX RY RZ SCL RMS WRMS | TOFT TDRFT RMS --------|------------------------------------------------|--------------------- brd n/a|0.15 0.47-0.03 -3.08 0.92 7.05 13.4 2.30 2.30 | -1.0 -1.8 6.79 cou n/a|0.01 0.00-0.01 -0.20 0.46 0.54 0.1 1.59 0.53 | -1.3 -7.0 18.43 emu n/a|0.00 0.00 0.00 -0.35 0.34 0.64 0.0 0.11 0.10 | 0.0 0.0 0.00 esu n/a|-.01-0.02 0.04 0.01 0.50 0.45 0.9 0.17 0.17 | 1975.6 6.3 4.41 gfu n/a|-.01 0.00 0.01 0.17 0.13 0.10 0.2 0.19 0.19 | -0.8 -11.0 6.36 siu n/a|-.01-0.02-0.02 -0.33 0.13 1.67 0.3 0.12 0.13 | 0.0 0.0 0.00 usu n/a|0.02 0.00 0.01 -0.20 0.59 0.85 0.3 0.41 0.24 | 695.3 -1.0 4.66 igu n/a|-.01-0.01 0.01 -0.17 0.25 0.78 0.1 0.10 0.08 | 0.6 -9.7 4.12 igr n/a|0.00 0.00 0.00 0.00 0.00 0.00 0.0 0.00 0.00 | -0.9 -0.5 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 2.1150.0 GPS week: 1150 Day: 0 MJD: 52294.0 Weighted Average PRN | brd cou emu esu gfu siu usu igu igr IGR | ------|------------------------------------------| 1 | 431 13 17 14 13 15 58 12 0 0 | 2 | 129 19 4 --- 16 4 9 4 0 0 | 3 | 148 5 6 13 6 8 7 5 0 0 | 4E | 194 28 21 28 17 19 30 19 0 0 | 5 | 157 8 5 10 5 8 7 3 0 0 | 6 | 446 5 5 7 19 26 13 7 0 0 | 7 | 155 13 8 15 10 9 10 8 0 0 | 8 | 218 191 25 22 61 14 82 23 0 0 | 9 | 130 4 6 16 8 8 5 4 0 0 | 10 | 208 28 4 24 7 10 15 8 0 0 | 11E | 136 15 8 45 18 16 14 11 0 0 | 13 | 150 38 15 18 20 23 76 12 0 0 | 14 | 218 10 11 16 7 22 17 5 0 0 | 15E | 355 702 --- --- 41 --- --- --- 0 0 | 17E | 253 85 --- --- 30 --- --- --- 0 0 | 18 | 97 13 8 26 16 19 11 13 0 0 | 20 | 124 22 6 17 11 5 6 6 0 0 | 21 | 213 381 22 --- 18 --- 18 16 0 0 | 22 | 187 9 6 12 4 5 8 5 0 0 | 23 | 194 22 9 --- 14 7 54 10 0 0 | 24E | 337 24 17 19 18 16 49 17 0 0 | 25 | 208 6 4 18 12 4 16 6 0 0 | 26 | 134 129 --- --- 17 --- 145 --- 0 0 | 27 | 100 6 7 10 9 10 5 6 0 0 | 28 | 77 11 8 23 6 14 11 11 0 0 | 29 | 79 29 12 --- 8 10 35 8 0 0 | 30 | 106 13 8 22 4 6 7 7 0 0 | 31 | 489 8 12 15 18 4 25 11 0 0 | ------|------------------------------------------| RMS | 230 159 11 17 19 12 41 10 0 | WRMS | 230 53 10 17 19 13 24 8 0 | MEDI | 172 14 8 17 14 10 15 8 0 |