Author: AC Coordinator / AIUB/CODE Ultra Rapid IGS Orbit Comparison - Week 1177 Day: 1 Hour: 00 (Jul 29, 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 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 1.1177.1 GPS week: 1177 Day: 1 MJD: 52484.0 CENT STA| DX DY DZ RX RY RZ SCL RMS WRMS | TOFT TDRFT RMS --------|------------------------------------------------|--------------------- brd n/a|0.12 0.43 0.31 -2.32 -0.47 1.59 11.4 2.34 2.34 | 0.7 -9.8 5.71 cou n/a|-.01 0.00-0.01 0.91 -0.13 0.47 -0.2 2.30 0.13 | -2.3 -17.4 19.04 emu n/a|-.02 0.00 0.01 0.17 -0.67 -0.02 -0.2 1.47 0.24 | 0.0 0.0 0.00 gfu n/a|0.00 0.02 0.01 -0.12 -0.59 0.27 0.0 0.12 0.08 | -0.2 -9.3 6.53 jpu n/a|-.01 0.04 0.03 -0.91 -0.14 1.01 0.1 0.52 0.25 | 0.0 0.0 0.00 siu n/a|-.01-0.02 0.01 -0.38 -0.18 0.84 -0.3 1.00 0.25 | 0.0 0.0 0.00 usu n/a|-.01 0.00 0.00 -0.14 -0.40 -0.20 0.2 0.15 0.11 |-1074.1 -31.3 0.35 igu n/a|-.01 0.00 0.02 -0.15 -0.48 0.23 -0.1 0.07 0.07 | -2.7 -12.2 6.47 igr n/a|0.00 0.00 0.00 0.00 0.00 0.00 0.0 0.00 0.00 | -0.6 -5.6 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 2.1177.1 GPS week: 1177 Day: 1 MJD: 52484.0 Weighted Average PRN | brd cou emu gfu jpu siu usu igu igr IGR | ------|------------------------------------------| 1 | 274 4 8 10 9 3 6 6 0 0 | 2 | 93 --- 4 14 --- 61 16 9 0 0 | 3 | 138 16 4 3 13 64 6 7 0 0 | 4E | 199 13 7 6 40 13 17 8 0 0 | 5 | 127 14 5 3 14 8 15 4 0 0 | 6 | 292 11 8 8 29 9 10 7 0 0 | 7 | 162 24 9 10 12 52 6 11 0 0 | 8 | 166 47 6 5 11 5 27 9 0 0 | 9 | 95 9 9 8 20 6 3 6 0 0 | 10 | 112 27 9 6 29 16 5 3 0 0 | 11E | 125 8 8 19 23 9 11 10 0 0 | 13 | 108 13 4 6 16 6 6 4 0 0 | 14 | 167 8 22 5 47 11 10 12 0 0 | 15E | 219 --- 22 --- 16 --- --- --- 0 0 | 17E | 538 --- 33 47 --- 190 --- --- 0 0 | 18 | 106 19 7 9 36 40 7 5 0 0 | 20 | 149 6 6 5 29 14 4 2 0 0 | 21 | 651 --- 773 --- 241 473 --- --- 0 0 | 22 | 112 15 14 7 7 37 3 5 0 0 | 23 | 260 9 12 11 57 37 56 16 0 0 | 24E | 229 >>> 8 --- 10 --- --- --- 0 0 | 25 | 163 7 4 3 34 11 4 3 0 0 | 26 | 182 22 6 5 11 6 4 4 0 0 | 27 | 149 3 6 5 9 19 10 7 0 0 | 28 | 141 17 12 8 28 24 20 14 0 0 | 29 | 113 15 6 5 16 9 7 5 0 0 | 30 | 326 14 14 3 23 4 16 8 0 0 | 31 | 121 12 4 12 22 41 7 4 0 0 | ------|------------------------------------------| RMS | 234 230 147 12 52 100 15 7 0 | WRMS | 234 13 24 8 25 25 11 7 0 | MEDI | 156 14 8 6 21 14 7 7 0 |