Author: AC Coordinator / GFZ Potsdam Ultra Rapid IGS Orbit Comparison - Week 1225 Day: 6 Hour: 12 (Jul 05, 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 1.1225.6 GPS week: 1225 Day: 6 MJD: 52825.5 CENT STA| DX DY DZ RX RY RZ SCL RMS WRMS | TOFT TDRFT RMS --------|------------------------------------------------|--------------------- brd |-.23-0.48-0.01 3.52 -3.26 0.02 19.0 1.91 1.91 | 1.3 -2.9 6.38 cou n/a|0.00 0.02 0.00 1.13 -0.03 3.10 -0.499.9999.99 | 3.6 -2.7 10.85 emu n/a|0.00 0.00-0.01 0.12 -0.81 1.41 -0.3 0.17 0.10 | -72.4 -16.7 3.94 esu n/a|0.03-0.02-0.03 1.16 0.45 0.44 0.2 0.23 0.15 | 96.9 -2.5 3.56 gfu n/a|0.03 0.01 0.00 0.20 -0.43 0.13 -0.3 0.22 0.22 | 0.9 -3.8 2.62 siu n/a|0.00 0.02-0.03 1.30 -1.07 0.61 -1.2 0.23 0.20 | 0.0 0.0 0.00 usu n/a|0.03 0.00 0.02 0.38 -0.54 1.41 -0.2 0.34 0.13 | -72.2 -16.0 3.32 igu n/a|0.01 0.00 0.00 0.39 -0.62 0.80 -0.3 0.18 0.14 | 0.6 -2.5 3.13 igr n/a|0.00 0.00 0.00 0.00 0.00 0.00 0.0 0.00 0.00 | 0.4 -1.1 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 2.1225.6 GPS week: 1225 Day: 6 MJD: 52825.5 Weighted Average PRN | brd cou emu esu gfu siu usu igu igr IGR | ------|------------------------------------------| 1 | 289 51 24 11 29 9 58 22 0 0 | 2 | 96 12 6 8 11 7 19 7 0 0 | 3 | 179 5 4 16 6 12 11 4 0 0 | 4E | 353 15 23 43 37 14 70 25 0 0 | 5 | 108 8 5 9 5 17 11 4 0 0 | 6 | 316 5 10 13 14 7 15 7 0 0 | 7 | 132 7 6 8 20 22 10 4 0 0 | 8 | 105 8 20 11 28 33 10 12 0 0 | 9 | 198 5 5 14 4 22 8 4 0 0 | 10 | 151 5 9 10 3 18 14 5 0 0 | 11E | 198 5 15 65 30 29 24 21 0 0 | 13 | 138 13 12 25 13 17 45 6 0 0 | 14 | 106 13 5 15 12 12 20 3 0 0 | 15E | 367 14 25 --- 14 9 32 17 0 0 | 16 | 86 5 6 7 6 10 19 4 0 0 | 17E | 171 22 26 27 14 9 28 13 0 0 | 18 | 126 5 7 18 6 9 14 5 0 0 | 20 | 105 5 5 21 15 10 9 4 0 0 | 21E | 130 >>> --- --- --- 11 --- --- 0 0 | 23 | 402 93 63 --- 77 92 93 74 0 0 | 24E | 116 15 14 52 23 10 43 20 0 0 | 25 | 186 3 6 11 4 13 7 3 0 0 | 26 | 120 23 20 20 25 18 70 23 0 0 | 27 | 133 6 8 12 16 19 7 7 0 0 | 28 | 77 6 8 10 7 20 6 4 0 0 | 29 | 126 16 11 29 12 9 42 15 0 0 | 30 | 95 5 6 7 6 15 17 4 0 0 | 31 | 94 4 5 25 3 11 18 6 0 0 | ------|------------------------------------------| RMS | 191 >>> 17 23 22 23 34 18 0 | WRMS | 191 >>> 10 15 22 20 13 14 0 | MEDI | 131 8 8 14 13 13 18 6 0 |