Author: AC Coordinator / GFZ Potsdam Ultra Rapid IGS Orbit Comparison - Week 1253 Day: 2 Hour: 12 (Jan 13, 2004) 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 EMU ESU GFU GOU 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 1.1253.2 GPS week: 1253 Day: 2 MJD: 53017.5 CENT STA| DX DY DZ RX RY RZ SCL RMS WRMS | TOFT TDRFT RMS --------|------------------------------------------------|--------------------- brd |-.15-0.30-0.17 0.21 -1.26 -4.03 11.2 1.55 1.55 | -0.7 1.1 5.96 cou n/a|-.01 0.00 0.00 -0.19 0.35 -0.20 -0.1 0.35 0.04 | -0.5 -0.9 6.40 emu n/a|0.00 0.00-0.01 -0.03 -0.09 0.44 0.0 0.42 0.40 | 803.0 71.1 3.79 esu n/a|0.02 0.00 0.00 0.05 -0.03 -0.60 -0.1 0.43 0.14 | 186.8 20.6 3.84 gfu n/a|0.00 0.00-0.01 0.44 0.01 0.18 0.2 0.34 0.06 | -1.4 -4.0 4.55 gou n/a|-.01 0.03 0.00 0.36 -0.03 0.12 0.2 0.35 0.35 | -0.5 0.4 6.31 usu n/a|-.03 0.00-0.01 -0.82 0.06 0.71 0.7 0.51 0.13 |-3051.2 -23.8 3.15 igu n/a|-.01 0.00-0.01 -0.05 0.04 0.20 0.1 0.35 0.30 | -0.5 -2.5 3.64 igr n/a|0.00 0.00 0.00 0.00 0.00 0.00 0.0 0.00 0.00 | -0.7 -0.6 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. (first 12 hours of the prediction) 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 2.1253.2 GPS week: 1253 Day: 2 MJD: 53017.5 Weighted Average PRN | brd cou emu esu gfu gou usu igu igr IGR | ------|------------------------------------------| 1 | 275 6 4 11 6 5 6 4 0 0 | 2 | 203 2 3 8 6 3 14 3 0 0 | 3 | 116 4 5 17 4 7 11 3 0 0 | 4E | 250 10 24 44 13 17 73 21 0 0 | 5 | 202 3 4 6 5 5 7 3 0 0 | 6 | 190 4 5 12 3 13 9 5 0 0 | 7 | 64 4 3 10 7 10 9 3 0 0 | 8 | 138 4 6 14 6 6 8 5 0 0 | 9E | 109 21 21 27 17 29 15 21 0 0 | 10 | 138 2 4 12 6 6 9 3 0 0 | 11 | 104 9 16 20 5 18 23 10 0 0 | 13 | 73 3 2 29 2 16 15 5 0 0 | 14 | 86 4 19 11 4 12 15 --- 0 0 | 15E | 216 9 21 20 26 10 51 11 0 0 | 16 | 131 2 7 11 6 7 16 5 0 0 | 17E | 186 6 34 19 35 14 --- 18 0 0 | 18 | 78 4 9 31 3 15 13 7 0 0 | 20 | 69 5 4 22 4 3 13 4 0 0 | 21E | 180 4 7 37 14 11 12 8 0 0 | 22 | 251 7 --- --- 6 --- 36 9 0 0 | 23 | 92 2 3 --- 5 14 23 5 0 0 | 24E | 234 173 177 197 171 170 186 176 0 0 | 25E | 100 12 24 23 25 18 97 14 0 0 | 26 | 101 3 6 7 7 8 13 5 0 0 | 27E | 109 10 18 30 13 21 28 16 0 0 | 28 | 101 4 5 21 4 9 9 4 0 0 | 29 | 119 58 113 17 11 --- 125 --- 0 0 | 30 | 100 3 5 12 5 5 9 4 0 0 | 31 | 139 5 6 21 4 7 10 4 0 0 | ------|------------------------------------------| RMS | 156 35 42 43 34 35 51 35 0 | WRMS | 156 4 40 14 6 35 13 30 0 | MEDI | 119 4 6 19 6 10 14 5 0 | Comparison of 24h data part to the IGS Rapid Orbits Table 3: Daily fit for each satellite and each centre resulting from the comparison of the individual solutions to the IGS Rapid solution. (24 hours of adjusted orbits) 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 3.1253.1 GPS week: 1253 Day: 1 MJD: 53016.5 Weighted Average PRN | cou emu esu gfu gou usu igu igr IGR | ------|--------------------------------------| 1 | 2 2 5 3 5 5 2 0 0 | 2 | 2 2 4 4 4 4 2 0 0 | 3 | 3 3 9 4 7 10 2 0 0 | 4E | 4 9 11 4 8 5 5 0 0 | 5 | 2 2 5 3 5 5 2 0 0 | 6 | 2 3 5 2 7 7 3 0 0 | 7 | 2 3 5 4 5 7 2 0 0 | 8 | 2 3 6 3 3 5 2 0 0 | 9E | 3 3 5 5 5 6 3 0 0 | 10 | 2 2 8 3 4 6 2 0 0 | 11 | 5 8 11 3 7 10 4 0 0 | 13 | 3 2 17 3 5 6 2 0 0 | 14 | 2 6 6 4 8 26 --- 0 0 | 15E | 3 13 13 6 8 6 6 0 0 | 16 | 2 3 6 3 5 5 2 0 0 | 17E | 4 18 8 9 9 --- 8 0 0 | 18 | 3 5 12 3 6 6 3 0 0 | 20 | 3 4 8 3 4 6 3 0 0 | 21E | 3 3 15 4 5 5 3 0 0 | 22 | 5 --- --- 5 --- 14 5 0 0 | 23 | 4 4 --- 4 10 7 4 0 0 | 24E | 8 7 11 10 9 10 7 0 0 | 25E | 3 8 8 5 9 5 5 0 0 | 26 | 2 3 4 3 5 8 3 0 0 | 27E | 2 4 11 3 6 6 3 0 0 | 28 | 3 2 8 3 6 11 3 0 0 | 29 | 6 39 14 12 --- 8 --- 0 0 | 30 | 2 3 6 3 4 4 2 0 0 | 31 | 2 3 12 3 5 8 2 0 0 | ------|--------------------------------------| RMS | 3 9 9 5 6 9 4 0 | WRMS | 2 6 7 3 6 9 3 0 | MEDI | 3 3 8 3 5 6 3 0 |