Author: AC Coordinator / GFZ Potsdam Ultra Rapid IGS Orbit Comparison - Week 1226 Day: 6 Hour: 00 (Jul 12, 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 1.1226.6 GPS week: 1226 Day: 6 MJD: 52832.0 CENT STA| DX DY DZ RX RY RZ SCL RMS WRMS | TOFT TDRFT RMS --------|------------------------------------------------|--------------------- brd n/a|0.22 0.26 0.17 -4.46 -2.81 3.71 14.6 1.90 1.90 | -2.2 9.3 16.82 cou n/a|0.01-0.03 0.00 -0.18 0.25 -0.43 -0.3 0.73 0.11 | -3.8 -6.9 12.85 emu n/a|-.02-0.01 0.01 0.03 -0.02 0.32 -0.1 0.70 0.10 | -163.9 -16.7 4.60 esu n/a|-.04 0.00-0.03 0.54 -1.29 0.26 0.5 0.53 0.16 | 2306.5 28.5 4.35 gfu n/a|0.00 0.01 0.02 -0.03 0.19 -0.61 -0.2 0.75 0.23 | -0.5 2.1 4.93 siu n/a|0.06 0.00 0.02 -0.01 0.07 1.47 0.0 0.62 0.18 | 0.0 0.0 0.00 usu n/a|-.02-0.01 0.02 -1.11 0.05 1.04 -0.1 0.39 0.21 | -164.4 -17.0 3.56 igu n/a|-.01-0.02 0.00 -0.14 0.03 0.41 0.0 0.69 0.12 | -5.3 -5.9 4.18 igr n/a|0.00 0.00 0.00 0.00 0.00 0.00 0.0 0.00 0.00 | -0.5 0.9 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 2.1226.6 GPS week: 1226 Day: 6 MJD: 52832.0 Weighted Average PRN | brd cou emu esu gfu siu usu igu igr IGR | ------|------------------------------------------| 1 | 198 8 9 13 14 14 10 4 0 0 | 2 | 104 9 24 8 7 20 32 17 0 0 | 3 | 117 18 5 20 7 18 15 6 0 0 | 4E | 139 21 12 14 --- 18 36 11 0 0 | 5 | 152 4 5 8 6 11 9 5 0 0 | 6 | 260 6 5 11 11 20 14 5 0 0 | 7 | 208 3 6 20 6 10 13 3 0 0 | 8 | 143 5 5 10 14 16 11 7 0 0 | 9 | 144 37 13 8 3 11 41 13 0 0 | 10 | 58 6 13 15 7 22 19 5 0 0 | 11E | 322 23 7 19 10 10 12 6 0 0 | 13 | 94 11 5 21 14 7 7 5 0 0 | 14 | 166 6 11 18 10 20 17 7 0 0 | 15E | 329 8 33 --- 48 13 --- 31 0 0 | 16 | 108 11 4 11 12 14 13 8 0 0 | 17E | 165 80 30 25 --- --- --- --- 0 0 | 18 | 164 6 6 18 6 16 8 5 0 0 | 20 | 101 4 13 24 5 15 9 9 0 0 | 21E | 192 24 35 40 20 41 63 30 0 0 | 23 | 218 9 12 --- 10 5 12 9 0 0 | 24E | 482 311 358 267 391 309 --- 359 0 0 | 25 | 132 91 15 15 15 50 52 18 0 0 | 26 | 106 11 5 26 10 39 10 7 0 0 | 27 | 140 10 19 16 8 15 29 14 0 0 | 28 | 88 12 13 16 8 17 22 13 0 0 | 29 | 202 180 55 10 19 32 169 25 0 0 | 30 | 87 9 6 12 7 7 9 5 0 0 | 31 | 72 9 13 25 8 11 22 13 0 0 | ------|------------------------------------------| RMS | 190 73 70 53 75 62 39 69 0 | WRMS | 190 11 10 16 23 18 21 12 0 | MEDI | 144 10 12 16 10 16 14 8 0 |