Author: AC Coordinator / GFZ Potsdam Ultra Rapid IGS Orbit Comparison - Week 1226 Day: 5 Hour: 00 (Jul 11, 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 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 1.1226.5 GPS week: 1226 Day: 5 MJD: 52831.0 CENT STA| DX DY DZ RX RY RZ SCL RMS WRMS | TOFT TDRFT RMS --------|------------------------------------------------|--------------------- brd n/a|0.64 0.46 0.22 -2.98 -3.41 -0.26 13.9 1.60 1.60 | 136.4 -525.8 705.30 cou n/a|0.02-0.01 0.01 -0.09 -0.57 0.75 -0.2 0.97 0.12 | -2.3 -2.3 11.94 emu n/a|0.00 0.00 0.01 -0.59 0.00 0.61 -0.3 0.24 0.10 | -146.4 -17.5 4.36 esu n/a|0.01-0.01-0.02 -0.63 -0.07 0.06 0.4 0.26 0.20 | 106.9 -3.8 3.40 gfu n/a|0.00 0.04 0.02 -0.20 0.15 -0.27 -0.4 0.20 0.13 | -1.0 -0.4 3.56 siu n/a|0.03 0.01 0.00 -1.00 -0.09 0.59 -1.0 0.27 0.25 | 0.0 0.0 0.00 usu n/a|0.00 0.01 0.02 -1.17 -0.11 0.39 -0.3 0.22 0.12 | -147.1 -17.7 3.24 igu n/a|0.01 0.01 0.00 -0.65 -0.04 0.11 -0.2 0.16 0.09 | -4.6 -5.7 2.88 igr n/a|0.00 0.00 0.00 0.00 0.00 0.00 0.0 0.00 0.00 | -0.6 1.2 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 2.1226.5 GPS week: 1226 Day: 5 MJD: 52831.0 Weighted Average PRN | brd cou emu esu gfu siu usu igu igr IGR | ------|------------------------------------------| 1 | 226 4 4 4 7 15 11 4 0 0 | 2 | 166 156 14 24 22 54 84 8 0 0 | 3 | 258 16 3 15 3 8 8 3 0 0 | 4E | 143 12 28 67 38 29 36 32 0 0 | 5 | 88 5 5 5 6 14 7 3 0 0 | 6 | 288 6 6 10 11 --- 15 8 0 0 | 7 | 72 5 9 21 8 54 9 9 0 0 | 8 | 91 6 5 7 16 33 17 11 0 0 | 9 | 146 8 6 4 4 29 7 3 0 0 | 10 | 143 31 13 11 3 18 7 4 0 0 | 11E | 115 34 6 25 10 19 18 7 0 0 | 13 | 123 8 5 26 9 30 8 6 0 0 | 14 | 225 4 15 14 13 35 8 5 0 0 | 15E | 216 50 31 --- 37 10 --- 31 0 0 | 16 | 99 15 7 27 7 28 12 9 0 0 | 17E | 199 163 91 52 --- --- --- --- 0 0 | 18 | 109 5 11 24 28 31 9 9 0 0 | 20 | 112 6 5 14 8 18 10 8 0 0 | 21E | 193 12 24 49 7 35 34 23 0 0 | 23 | 226 5 16 --- 5 8 12 10 0 0 | 24E | 205 449 55 52 72 53 --- 58 0 0 | 25 | 151 36 16 18 22 12 10 14 0 0 | 26 | 53 8 7 8 7 25 9 5 0 0 | 27 | 71 61 14 27 8 29 30 4 0 0 | 28 | 111 6 11 11 5 --- 11 7 0 0 | 29 | 87 9 16 13 11 --- 15 13 0 0 | 30 | 114 15 4 10 6 17 7 4 0 0 | 31 | 116 7 5 16 16 12 13 6 0 0 | ------|------------------------------------------| RMS | 160 97 24 26 20 27 22 16 0 | WRMS | 160 12 10 20 13 25 12 9 0 | MEDI | 133 9 10 16 8 27 11 8 0 |