Author: AC Coordinator / AIUB/CODE Ultra Rapid IGS Orbit Comparison - Week 1177 Day: 3 Hour: 00 (Jul 31, 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 1.1177.3 GPS week: 1177 Day: 3 MJD: 52486.0 CENT STA| DX DY DZ RX RY RZ SCL RMS WRMS | TOFT TDRFT RMS --------|------------------------------------------------|--------------------- brd n/a|0.32 0.22 0.39 -4.47 -2.49 6.39 17.0 2.13 2.13 | -0.3 0.4 5.71 cou n/a|0.01-0.01-0.02 0.17 -1.69 1.06 -0.3 0.24 0.10 | -3.1 -11.4 23.32 emu n/a|0.03 0.01 0.00 -0.60 -0.52 0.14 0.2 6.68 0.59 | 0.0 0.0 0.00 esu n/a|0.04-0.03-0.01 0.03 0.43 -0.12 0.0 0.21 0.16 | 31.7 7.8 6.18 gfu n/a|0.04 0.01 0.02 0.07 0.32 -0.23 -0.5 0.48 0.52 | -2.6 -7.4 6.83 jpu n/a|0.00-0.05 0.01 -0.83 -0.20 0.29 -0.9 3.12 1.21 | 0.0 0.0 0.00 siu n/a|0.09-0.03 0.01 -2.66 2.26 3.44 1.5 3.11 0.82 | 0.0 0.0 0.00 usu n/a|0.02-0.01-0.02 -0.96 -0.72 0.49 0.3 0.49 0.55 |-1136.0 -32.5 2.79 igu n/a|0.03 0.00 0.00 -0.36 -0.18 0.11 -0.3 0.48 0.49 | -1.6 -2.7 6.28 igr n/a|0.00 0.00 0.00 0.00 0.00 0.00 0.0 0.00 0.00 | -0.4 -0.1 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 2.1177.3 GPS week: 1177 Day: 3 MJD: 52486.0 Weighted Average PRN | brd cou emu esu gfu jpu siu usu igu igr IGR | ------|----------------------------------------------| 1 | 274 5 4 11 6 18 122 7 4 0 0 | 2 | 141 --- 238 --- 243 --- 265 239 240 0 0 | 3 | 143 10 23 15 5 10 --- 12 11 0 0 | 4E | 298 43 14 13 31 40 50 49 27 0 0 | 5 | 203 3 4 4 8 11 41 16 7 0 0 | 6 | 281 16 19 19 14 56 --- 15 20 0 0 | 7 | 78 6 6 14 9 12 70 10 7 0 0 | 8 | 186 11 3 12 5 13 --- 10 4 0 0 | 9 | 218 5 7 15 10 15 69 6 3 0 0 | 10 | 103 6 6 9 6 18 35 6 2 0 0 | 11E | 166 18 16 28 14 14 33 7 7 0 0 | 13 | 90 6 5 17 13 16 115 5 6 0 0 | 14 | 125 7 12 21 12 16 --- 8 8 0 0 | 15E | 608 --- >>> --- --- >>> >>> --- --- 0 0 | 17E | 125 --- 73 47 56 --- --- --- 51 0 0 | 18 | 101 7 15 17 13 44 --- 19 5 0 0 | 20 | 120 7 7 31 5 14 76 7 5 0 0 | 21 | 120 --- 16 16 11 33 --- --- 10 0 0 | 22 | 149 4 10 22 8 19 31 12 5 0 0 | 23 | 295 17 13 --- 4 19 --- 60 18 0 0 | 24E | 279 109 37 32 --- 24 46 --- 25 0 0 | 25E | 144 8 8 9 7 10 33 13 8 0 0 | 26 | 226 3 5 35 8 31 --- 10 14 0 0 | 27 | 196 18 7 11 16 17 --- 23 11 0 0 | 28 | 93 9 10 36 12 14 79 15 15 0 0 | 29 | 102 6 4 32 8 27 91 9 13 0 0 | 30 | 212 13 8 14 9 13 41 11 8 0 0 | 31 | 91 6 8 10 17 20 138 9 11 0 0 | ------|----------------------------------------------| RMS | 213 24 668 21 48 312 311 49 48 0 | WRMS | 213 10 59 16 52 120 82 55 49 0 | MEDI | 147 7 9 16 10 18 70 11 8 0 |