Author: AC Coordinator / GFZ Potsdam Ultra Rapid IGS Orbit Comparison - Week 1242 Day: 0 Hour: 12 (Oct 26, 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 USU _______________________________________________________________________________ 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 1.1242.0 GPS week: 1242 Day: 0 MJD: 52938.5 CENT STA| DX DY DZ RX RY RZ SCL RMS WRMS | TOFT TDRFT RMS --------|------------------------------------------------|--------------------- brd |-.15-0.50-0.12 -1.52 -4.43 -1.91 10.4 1.72 1.72 | 3.1 -11.8 7.15 cou n/a|0.01 0.02 0.00 0.48 0.56 0.24 -0.2 0.26 0.06 | 0.1 -1.2 8.38 emu n/a|0.00 0.01 0.01 -0.19 0.11 0.30 -0.1 0.22 0.18 | 476.7 7.0 4.80 esu n/a|-.03 0.01 0.03 -1.29 -1.59 -0.04 0.2 0.18 0.15 | 476.2 9.0 5.28 usu n/a|0.04 0.02 0.03 0.22 -0.60 1.60 -0.2 0.13 0.14 |-1406.3 -28.1 5.15 igu n/a|0.01 0.02 0.01 0.02 -0.11 0.67 0.0 0.07 0.06 | -0.3 -3.1 4.86 igr n/a|0.00 0.00 0.00 0.00 0.00 0.00 0.0 0.00 0.00 | 0.4 -2.3 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 2.1242.0 GPS week: 1242 Day: 0 MJD: 52938.5 Weighted Average PRN | brd cou emu esu usu igu igr IGR | ------|----------------------------------| 1 | 146 5 7 11 10 4 0 0 | 2 | 164 3 3 12 8 3 0 0 | 3E | 92 23 22 17 15 14 0 0 | 4 | 87 4 13 10 17 8 0 0 | 5 | 96 3 19 12 21 4 0 0 | 6 | 343 5 3 10 10 5 0 0 | 7E | 109 6 6 11 26 7 0 0 | 8 | 128 4 5 25 14 7 0 0 | 9 | 105 3 5 15 10 6 0 0 | 10 | 147 13 9 8 14 3 0 0 | 11 | 246 3 7 40 14 5 0 0 | 13 | 119 5 5 21 11 2 0 0 | 14 | 164 5 10 20 13 4 0 0 | 15 | 120 5 19 14 8 5 0 0 | 16 | 129 7 13 21 14 5 0 0 | 17 | 55 8 9 12 7 6 0 0 | 18 | 242 14 67 14 13 20 0 0 | 20 | 75 2 21 --- 18 4 0 0 | 21 | 191 6 11 20 7 3 0 0 | 23 | 495 134 72 42 --- --- 0 0 | 24 | 109 5 8 10 13 4 0 0 | 25 | 100 5 9 18 8 6 0 0 | 26 | 89 5 4 8 10 4 0 0 | 27 | 51 4 32 23 14 8 0 0 | 28 | 174 5 6 17 12 5 0 0 | 29 | 97 3 8 --- 10 4 0 0 | 30 | 123 5 6 12 9 5 0 0 | 31E | 89 15 17 8 12 11 0 0 | ------|----------------------------------| RMS | 172 26 22 18 13 7 0 | WRMS | 172 6 18 15 14 6 0 | MEDI | 120 5 9 14 12 5 0 |