Author: AC Coordinator / GFZ Potsdam Ultra Rapid IGS Orbit Comparison - Week 1231 Day: 6 Hour: 00 (Aug 16, 2003) Contacts: G. Gendt (gendt@gfz-potsdam.de), Th. Nischan (nisn@gfz-potsdam.de) 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 SIU _______________________________________________________________________________ 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 1.1231.6 GPS week: 1231 Day: 6 MJD: 52867.0 CENT STA| DX DY DZ RX RY RZ SCL RMS WRMS | TOFT TDRFT RMS --------|------------------------------------------------|--------------------- brd n/a|0.22 0.61 0.13 0.72 -3.36 -6.86 12.4 1.77 1.77 | 2.5 -8.2 5.43 cou n/a|-.01-0.02 0.00 0.25 0.43 -2.67 -0.5 0.12 0.05 | 0.2 -3.4 6.71 esu n/a|0.01-0.01-0.06 -1.07 0.06 -0.37 0.0 0.19 0.13 | 146.9 0.8 5.08 gfu n/a|0.01 0.01 0.00 0.39 0.55 -0.55 -0.4 0.13 0.10 | -1.5 -5.0 5.24 siu n/a|0.02 0.02 0.00 -0.32 0.94 -0.11 -0.1 0.27 0.19 | 0.0 0.0 0.00 igu n/a|0.02 0.01-0.01 0.02 0.54 -0.97 -0.3 0.12 0.08 | 0.2 -0.8 5.00 igr n/a|0.00 0.00 0.00 0.00 0.00 0.00 0.0 0.00 0.00 | 0.1 -0.1 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 2.1231.6 GPS week: 1231 Day: 6 MJD: 52867.0 Weighted Average PRN | brd cou esu gfu siu igu igr IGR | ------|----------------------------------| 1 | 186 4 11 9 28 10 0 0 | 2 | 88 6 6 9 14 5 0 0 | 3 | 272 3 5 18 12 5 0 0 | 4 | 96 6 14 2 10 3 0 0 | 5 | 84 3 11 7 8 2 0 0 | 6 | 266 13 5 9 33 13 0 0 | 7 | 89 9 15 4 10 4 0 0 | 8E | 390 19 9 20 5 7 0 0 | 9E | 93 27 32 11 39 19 0 0 | 10 | 182 5 6 4 15 5 0 0 | 11 | 86 6 27 12 24 11 0 0 | 13 | 110 6 27 9 12 8 0 0 | 14 | 207 4 30 11 23 7 0 0 | 15 | 121 4 --- 5 20 6 0 0 | 16 | 76 8 22 9 10 9 0 0 | 17 | 106 4 15 4 11 4 0 0 | 18 | 85 6 24 5 15 7 0 0 | 20 | 251 5 18 16 31 12 0 0 | 21 | 332 4 18 6 15 6 0 0 | 23 | 233 8 --- 12 32 13 0 0 | 24 | 137 4 13 5 18 5 0 0 | 25E | 173 21 18 44 96 40 0 0 | 26 | 112 5 10 4 12 3 0 0 | 27E | 209 6 54 12 27 11 0 0 | 28 | 131 4 18 16 19 10 0 0 | 29 | 89 45 18 21 25 26 0 0 | 30 | 99 3 7 6 10 3 0 0 | 31 | 76 2 12 6 24 5 0 0 | ------|----------------------------------| RMS | 177 12 19 13 27 12 0 | WRMS | 177 5 13 10 19 8 0 | MEDI | 117 6 15 9 17 7 0 |