Author: AC Coordinator / GFZ Potsdam Ultra Rapid IGS Orbit Comparison - Week 1224 Day: 3 Hour: 12 (Jun 25, 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 1.1224.3 GPS week: 1224 Day: 3 MJD: 52815.5 CENT STA| DX DY DZ RX RY RZ SCL RMS WRMS | TOFT TDRFT RMS --------|------------------------------------------------|--------------------- brd |-.14-0.53 0.18 -0.09 -2.64 -5.32 16.1 2.40 2.40 | 0.0 2.0 6.09 cou n/a|-.02 0.03 0.01 0.48 0.36 0.77 -0.4 3.34 0.16 | -1.5 -3.6 10.07 emu n/a|0.00 0.02-0.02 0.15 -0.37 0.37 -0.3 0.14 0.11 | 60.3 -10.7 4.02 esu n/a|0.01 0.01-0.02 1.23 -0.02 -0.02 0.3 0.75 0.17 | 54.8 4.7 4.46 gfu n/a|0.01 0.02 0.01 0.24 0.41 -0.31 -0.4 0.15 0.10 | -1.4 4.0 5.48 siu n/a|0.01 0.01-0.01 -0.01 -0.50 -0.10 -0.7 0.21 0.16 | 0.0 0.0 0.00 usu n/a|-.01 0.00 0.01 0.15 0.07 0.65 -0.1 0.30 0.13 | 60.9 -12.0 3.68 igu n/a|0.01 0.01-0.01 0.19 -0.24 0.14 -0.3 0.14 0.10 | -0.5 3.7 4.00 igr n/a|0.00 0.00 0.00 0.00 0.00 0.00 0.0 0.00 0.00 | -1.5 4.7 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 2.1224.3 GPS week: 1224 Day: 3 MJD: 52815.5 Weighted Average PRN | brd cou emu esu gfu siu usu igu igr IGR | ------|------------------------------------------| 1E | 345 26 9 16 13 12 40 8 0 0 | 2 | 402 7 20 32 12 9 13 14 0 0 | 3 | 221 4 5 10 6 12 13 4 0 0 | 4E | 172 8 5 8 15 8 42 8 0 0 | 5 | 288 2 6 13 7 33 14 9 0 0 | 6 | 475 5 8 12 6 18 10 6 0 0 | 7 | 119 4 12 7 6 24 8 9 0 0 | 8 | 129 3 11 13 9 30 10 8 0 0 | 9 | 177 6 4 20 5 5 7 3 0 0 | 10 | 423 7 8 16 6 8 15 5 0 0 | 11E | 118 14 9 32 11 10 33 8 0 0 | 13E | 214 9 11 11 34 20 18 8 0 0 | 14E | 234 8 10 19 10 19 19 8 0 0 | 15E | 438 54 32 --- 27 25 49 32 0 0 | 16 | 89 6 5 10 6 5 15 4 0 0 | 17 | 212 >>> 26 382 --- 15 --- --- 0 0 | 18 | 109 6 5 17 7 14 8 6 0 0 | 20 | 134 5 11 31 8 11 11 4 0 0 | 21E | 92 4 4 43 5 7 12 8 0 0 | 23 | 294 7 10 --- 7 11 12 7 0 0 | 24E | 301 64 15 14 29 13 31 15 0 0 | 25 | 174 6 24 8 4 17 19 14 0 0 | 26E | 124 25 16 49 31 39 74 31 0 0 | 27 | 81 6 11 21 5 20 8 9 0 0 | 28 | 125 7 8 9 7 41 15 5 0 0 | 29E | 147 36 20 46 35 53 87 41 0 0 | 30 | 192 8 15 11 6 13 15 10 0 0 | 31 | 98 3 11 14 5 6 17 9 0 0 | ------|------------------------------------------| RMS | 241 334 14 75 15 21 30 14 0 | WRMS | 241 16 11 17 10 16 13 10 0 | MEDI | 176 7 11 15 7 14 15 8 0 |