Author: AC Coordinator / GFZ Potsdam Ultra Rapid IGS Orbit Comparison - Week 1235 Day: 6 Hour: 00 (Sep 13, 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 _______________________________________________________________________________ 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 1.1235.6 GPS week: 1235 Day: 6 MJD: 52895.0 CENT STA| DX DY DZ RX RY RZ SCL RMS WRMS | TOFT TDRFT RMS --------|------------------------------------------------|--------------------- brd n/a|0.14 0.23 0.08 -2.44 -0.67 -1.60 13.8 1.53 1.53 | 0.3 1.2 5.72 cou n/a|0.01-0.01 0.00 0.29 -0.10 -0.60 -0.5 0.13 0.04 | 0.3 -0.7 8.22 emu n/a|0.01-0.01 0.02 0.09 -0.34 0.71 -0.2 0.17 0.09 | 210.3 0.8 3.27 esu n/a|0.02-0.05-0.01 -0.29 1.66 0.02 0.0 0.20 0.18 | 1.0 -10.5 3.51 gfu n/a|-.01 0.01 0.01 0.59 0.05 -0.35 0.0 0.14 0.11 | -2.0 -4.3 3.84 siu n/a|0.01-0.01-0.01 0.30 1.04 1.99 -0.4 0.17 0.15 | 0.0 0.0 0.00 usu n/a|0.00 0.00 0.02 0.10 0.60 1.57 0.0 0.38 0.11 | -423.0 -20.5 3.26 igu n/a|0.01-0.01 0.01 0.23 0.12 0.40 -0.1 0.12 0.07 | -0.8 -3.2 3.17 igr n/a|0.00 0.00 0.00 0.00 0.00 0.00 0.0 0.00 0.00 | 0.1 0.0 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 2.1235.6 GPS week: 1235 Day: 6 MJD: 52895.0 Weighted Average PRN | brd cou emu esu gfu siu usu igu igr IGR | ------|------------------------------------------| 1 | 168 5 11 10 7 9 9 5 0 0 | 2E | 180 12 37 32 25 11 93 29 0 0 | 3 | 124 3 6 14 9 9 12 3 0 0 | 4 | 148 5 7 28 12 33 9 6 0 0 | 5E | 159 11 15 27 19 13 46 15 0 0 | 6 | 246 6 8 8 18 22 10 10 0 0 | 7 | 141 8 7 9 7 29 12 5 0 0 | 8 | 151 3 7 10 14 11 11 3 0 0 | 9 | 87 2 5 15 10 13 7 3 0 0 | 10E | 170 5 9 24 8 15 13 5 0 0 | 11 | 127 5 6 24 13 12 8 5 0 0 | 13 | 104 5 4 25 8 10 9 4 0 0 | 14 | 329 4 9 23 13 20 7 7 0 0 | 15 | 157 2 32 13 9 27 15 16 0 0 | 16E | 133 5 8 17 10 12 9 7 0 0 | 17 | 67 5 6 9 6 17 9 3 0 0 | 18E | 97 9 10 52 25 4 16 13 0 0 | 20E | 141 3 7 28 6 27 19 7 0 0 | 21 | 124 6 5 20 16 8 9 7 0 0 | 23E | 257 63 47 23 35 33 139 30 0 0 | 24 | 100 5 21 9 10 7 6 10 0 0 | 25 | 165 3 3 15 6 11 8 3 0 0 | 26 | 46 6 14 9 6 19 22 6 0 0 | 27 | 141 3 3 8 7 12 6 4 0 0 | 28E | 82 6 6 19 7 20 12 6 0 0 | 29 | 74 4 38 9 9 15 20 16 0 0 | 30E | 142 7 24 12 14 10 86 19 0 0 | 31 | 71 5 3 8 3 7 9 2 0 0 | ------|------------------------------------------| RMS | 153 13 17 20 14 17 38 12 0 | WRMS | 153 4 9 18 11 15 11 7 0 | MEDI | 141 5 8 15 10 13 11 6 0 |