Author: AC Coordinator / AIUB/CODE Ultra Rapid IGS Orbit Comparison - Week 1168 Day: 0 Hour: 00 (May 26, 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 1.1168.0 GPS week: 1168 Day: 0 MJD: 52420.0 CENT STA| DX DY DZ RX RY RZ SCL RMS WRMS | TOFT TDRFT RMS --------|------------------------------------------------|--------------------- brd n/a|0.21 0.55 0.32 -1.16 -0.46-13.56 6.5 3.02 3.02 | -0.4 -1.8 6.56 cou n/a|0.02 0.00 0.03 0.37 1.18 2.87 -0.4 0.49 0.41 | -2.5 -8.8 15.19 emu n/a|0.00 0.03 0.01 -0.09 0.18 -0.53 0.2 0.20 0.14 | 0.0 0.0 0.00 esu n/a|-.05-0.05 0.05 -6.96 3.28 3.95 0.8 2.81 0.35 | 290.3 245.7 4.39 gfu n/a|0.00 0.01 0.03 -0.02 0.01 0.38 -0.4 0.18 0.12 | -1.0 -1.6 4.57 jpu n/a|0.02-0.02 0.04 -0.58 0.48 0.45 0.9 0.20 0.16 | 0.0 0.0 0.00 siu n/a|0.00 0.00 0.01 -0.35 0.15 -0.26 -0.2 0.17 0.19 | 0.0 0.0 0.00 usu n/a|-.01 0.04 0.02 -1.06 0.16 -0.62 -0.3 0.32 0.20 | 111.6 -23.6 5.96 igu n/a|-.01 0.02 0.01 -0.28 0.14 -0.20 -0.3 0.17 0.11 | -2.2 -5.3 5.55 igr n/a|0.00 0.00 0.00 0.00 0.00 0.00 0.0 0.00 0.00 | -0.2 -0.7 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 2.1168.0 GPS week: 1168 Day: 0 MJD: 52420.0 Weighted Average PRN | brd cou emu esu gfu jpu siu usu igu igr IGR | ------|----------------------------------------------| 1 | 258 7 5 25 6 20 14 20 6 0 0 | 2 | 362 --- --- --- 16 --- --- --- --- 0 0 | 3E | 122 141 59 195 11 50 47 96 48 0 0 | 4 | 187 7 10 24 9 12 3 10 7 0 0 | 5 | 112 14 12 48 3 12 8 16 9 0 0 | 6E | 424 25 23 220 28 20 28 32 23 0 0 | 7E | 343 19 29 26 39 22 27 47 34 0 0 | 8 | 392 9 7 21 4 18 4 8 3 0 0 | 9 | 374 24 25 38 2 12 7 16 10 0 0 | 10 | 218 10 13 66 12 9 23 14 9 0 0 | 11 | 299 24 23 37 12 17 21 11 17 0 0 | 13 | 190 14 6 41 5 6 6 7 4 0 0 | 14 | 252 9 16 79 6 20 18 15 13 0 0 | 15 | 152 --- --- --- --- 32 --- --- --- 0 0 | 17 | 947 --- --- >>> --- --- --- --- --- 0 0 | 18 | 229 90 57 39 37 22 35 57 29 0 0 | 20 | 117 8 7 114 6 13 9 18 7 0 0 | 21 | 115 --- --- 38 6 --- --- --- --- 0 0 | 22 | 355 10 6 34 4 12 12 25 6 0 0 | 23 | 339 17 14 --- 10 11 17 67 19 0 0 | 24 | 215 17 12 29 9 18 15 11 11 0 0 | 25 | 235 14 5 92 11 18 4 14 6 0 0 | 26 | 112 15 9 53 7 20 9 8 6 0 0 | 27 | 210 12 5 56 6 14 8 20 4 0 0 | 28 | 178 9 6 38 5 26 10 15 4 0 0 | 29 | 132 183 --- --- --- 23 --- --- --- 0 0 | 30 | 67 7 15 50 4 8 4 15 7 0 0 | 31E | 141 12 17 75 61 36 16 70 37 0 0 | ------|----------------------------------------------| RMS | 302 49 20 282 18 20 17 32 17 0 | WRMS | 302 41 14 35 12 16 19 20 11 0 | MEDI | 217 14 12 45 7 18 12 16 9 0 |