Author: AC Coordinator / AIUB/CODE Ultra Rapid IGS Orbit Comparison - Week 1177 Day: 5 Hour: 00 (Aug 02, 2002) Contacts: R. Weber (rweber@luna.tuwien.ac.at), H. Bock (bock@aiub.unibe.ch), R. Dach (dach@aiub.unibe.ch) 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 JPU 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 1.1177.5 GPS week: 1177 Day: 5 MJD: 52488.0 CENT STA| DX DY DZ RX RY RZ SCL RMS WRMS | TOFT TDRFT RMS --------|------------------------------------------------|--------------------- brd n/a|0.49 0.45 0.25 -5.27 -1.35 4.47 8.3 1.98 1.98 | 0.1 -3.2 6.32 cou n/a|0.05 0.01-0.01 -1.53 -0.62 1.28 -0.3 0.87 0.13 | -3.9 2.1 23.82 emu n/a|0.01 0.01 0.01 -0.06 0.08 -0.15 -0.2 1.21 0.13 | 0.0 0.0 0.00 esu n/a|0.02-0.03 0.01 0.58 0.63 -0.11 -0.1 1.10 0.21 | 49.7 10.8 8.02 gfu n/a|0.03-0.02 0.02 -0.19 1.33 0.59 -0.2 0.16 0.13 | -1.7 -2.2 5.56 jpu n/a|-.03-0.06 0.00 -1.98 -0.46 1.24 -0.5 0.94 0.89 | 0.0 0.0 0.00 siu n/a|0.00-0.01 0.02 -0.99 0.65 0.31 -0.1 0.91 0.48 | 0.0 0.0 0.00 usu n/a|0.05-0.03 0.00 -0.81 0.59 -0.03 0.1 0.29 0.16 |-1199.9 -33.4 4.03 igu n/a|0.02-0.03 0.01 -0.41 0.68 0.15 -0.2 0.96 0.27 | -5.6 0.0 7.60 igr n/a|0.00 0.00 0.00 0.00 0.00 0.00 0.0 0.00 0.00 | -0.9 3.4 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 2.1177.5 GPS week: 1177 Day: 5 MJD: 52488.0 Weighted Average PRN | brd cou emu esu gfu jpu siu usu igu igr IGR | ------|----------------------------------------------| 1 | 203 17 5 15 11 18 4 7 4 0 0 | 2 | 118 --- 17 --- 11 --- --- --- --- 0 0 | 3 | 121 9 10 13 14 22 17 10 4 0 0 | 4E | 188 21 17 31 23 37 29 23 19 0 0 | 5 | 200 5 5 7 6 11 5 9 2 0 0 | 6 | 357 9 9 9 11 8 9 10 7 0 0 | 7 | 99 16 8 8 10 28 28 9 6 0 0 | 8 | 111 15 11 20 10 7 6 28 11 0 0 | 9E | 126 21 8 12 8 7 6 11 6 0 0 | 10 | 126 14 12 23 8 37 5 9 9 0 0 | 11E | 117 30 26 43 16 19 14 15 19 0 0 | 13 | 129 7 4 18 9 22 8 9 6 0 0 | 14 | 138 7 19 26 5 42 24 6 4 0 0 | 15E | 254 --- 50 --- --- 15 --- --- --- 0 0 | 17E | 242 --- 97 42 53 --- 43 67 48 0 0 | 18 | 155 13 28 28 8 43 14 31 19 0 0 | 20 | 141 11 11 22 7 33 10 12 8 0 0 | 21 | 187 --- 386 --- --- 13 --- --- --- 0 0 | 22 | 153 3 6 18 8 11 5 12 5 0 0 | 23 | 291 13 17 --- 8 9 59 63 15 0 0 | 24E | 470 451 494 572 --- 470 470 --- 501 0 0 | 25E | 201 72 28 8 40 73 9 105 26 0 0 | 26 | 97 7 8 33 7 44 6 20 5 0 0 | 27E | 112 10 3 14 16 11 5 14 8 0 0 | 28 | 110 10 4 23 15 56 27 6 15 0 0 | 29 | 57 14 6 35 9 55 7 20 7 0 0 | 30 | 317 9 6 8 8 16 10 9 4 0 0 | 31 | 112 12 6 6 9 13 6 6 3 0 0 | ------|----------------------------------------------| RMS | 198 87 121 110 16 94 91 29 96 0 | WRMS | 198 13 13 21 13 89 48 16 27 0 | MEDI | 140 13 11 19 9 21 9 12 7 0 |