Author: AC Coordinator / AIUB/CODE Ultra Rapid IGS Orbit Comparison - Week 1177 Day: 2 Hour: 00 (Jul 30, 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 1.1177.2 GPS week: 1177 Day: 2 MJD: 52485.0 CENT STA| DX DY DZ RX RY RZ SCL RMS WRMS | TOFT TDRFT RMS --------|------------------------------------------------|--------------------- brd n/a|0.12 0.26 0.40 -2.16 -2.51 2.17 8.5 2.08 2.08 | 0.0 -4.0 6.53 cou n/a|-.01-0.01-0.01 0.48 -0.66 -0.32 -0.2 0.25 0.08 | -7.0 -8.3 14.91 emu n/a|0.00-0.01 0.01 0.08 -0.43 0.38 -0.4 0.16 0.08 | 0.0 0.0 0.00 esu n/a|-.02 0.00-0.01 0.07 0.13 0.01 0.0 0.26 0.12 | -161.4 5.9 6.05 gfu n/a|-.02 0.02 0.01 -0.61 -0.20 0.30 -0.3 0.13 0.10 | -4.8 -1.7 5.09 jpu n/a|0.01-0.03 0.01 -1.07 -0.30 0.61 -0.6 0.18 0.19 | 0.0 0.0 0.00 siu n/a|-.02-0.02-0.01 -0.73 -0.20 0.83 0.1 0.14 0.12 | 0.0 0.0 0.00 usu n/a|-.03-0.01 0.00 -0.59 -0.55 1.10 0.4 0.17 0.13 |-1106.1 -27.5 3.51 igu n/a|-.02-0.01 0.00 -0.45 -0.22 0.44 -0.1 0.12 0.08 | -7.1 -1.3 5.03 igr n/a|0.00 0.00 0.00 0.00 0.00 0.00 0.0 0.00 0.00 | -0.3 -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 2.1177.2 GPS week: 1177 Day: 2 MJD: 52485.0 Weighted Average PRN | brd cou emu esu gfu jpu siu usu igu igr IGR | ------|----------------------------------------------| 1 | 208 8 6 16 21 15 9 9 12 0 0 | 2 | 95 --- 15 --- 5 --- 5 32 11 0 0 | 3 | 162 13 9 6 8 27 12 4 4 0 0 | 4E | 260 19 13 75 --- 33 24 28 22 0 0 | 5 | 208 6 10 13 7 11 10 10 8 0 0 | 6 | 266 6 8 14 20 17 17 6 12 0 0 | 7 | 222 10 6 14 7 15 4 6 3 0 0 | 8 | 190 19 10 4 6 10 19 19 9 0 0 | 9 | 207 3 9 9 9 18 8 10 4 0 0 | 10 | 127 4 3 12 5 7 5 10 2 0 0 | 11E | 108 8 13 16 9 9 6 17 8 0 0 | 13 | 113 6 5 18 9 19 9 7 8 0 0 | 14 | 143 7 7 16 8 16 14 15 4 0 0 | 15E | 155 --- 42 --- 50 41 --- --- 43 0 0 | 17E | 319 --- 44 97 --- --- --- --- --- 0 0 | 18 | 100 4 30 17 13 17 6 14 10 0 0 | 20 | 173 15 5 24 9 14 6 6 4 0 0 | 21 | 441 --- --- --- --- 11 --- --- --- 0 0 | 22 | 100 12 17 9 7 7 4 9 3 0 0 | 23 | 362 6 2 --- 3 16 41 58 17 0 0 | 24E | 327 123 24 19 --- 14 --- --- 17 0 0 | 25 | 195 5 4 12 --- 15 15 7 7 0 0 | 26 | 141 4 12 7 3 14 15 4 6 0 0 | 27 | 177 12 6 8 6 11 23 23 9 0 0 | 28 | 99 10 7 11 12 32 23 12 12 0 0 | 29 | 87 5 10 6 4 10 13 5 6 0 0 | 30 | 176 10 6 12 2 23 5 18 3 0 0 | 31 | 142 7 7 11 5 20 5 8 3 0 0 | ------|----------------------------------------------| RMS | 208 25 16 26 13 18 14 17 12 0 | WRMS | 208 8 8 12 10 19 12 13 8 0 | MEDI | 175 8 9 13 7 15 10 10 8 0 |