Author: AC Coordinator / AIUB/CODE Ultra Rapid IGS Orbit Comparison - Week 1151 Day: 4 Hour: 12 (Jan 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 1.1151.4 GPS week: 1151 Day: 4 MJD: 52305.5 CENT STA| DX DY DZ RX RY RZ SCL RMS WRMS | TOFT TDRFT RMS --------|------------------------------------------------|--------------------- brd |0.04-0.21-0.07 1.25 -0.96 -4.24 10.2 2.08 2.08 | -0.3 1.1 6.14 cou n/a|0.03 0.00-0.01 -0.15 -0.77 -1.81 -0.3 0.92 0.18 | 0.6 -1.9 12.84 emu n/a|-.01 0.01-0.01 -0.20 -0.87 0.18 -0.5 0.20 0.13 | 0.0 0.0 0.00 esu n/a|0.00 0.02 0.01 -0.32 0.13 1.43 1.2 0.27 0.19 | -937.1 7.5 11.02 gfu n/a|0.03-0.02-0.02 0.16 -0.90 -0.88 0.0 0.20 0.19 | -1.0 -4.5 3.52 jpu n/a|0.01 0.00-0.01 -0.40 -0.34 0.16 0.7 0.23 0.24 | 0.0 0.0 0.00 siu n/a|0.00 0.00-0.01 -0.75 -1.81 0.83 0.3 0.23 0.25 | 0.0 0.0 0.00 usu n/a|0.02 0.01 0.00 -0.55 -1.32 0.33 0.1 1.51 0.25 |-3905.5 -115.9 6.04 igu n/a|0.02 0.00-0.01 -0.27 -1.10 0.21 0.0 0.19 0.09 | 0.9 -1.2 4.45 igr n/a|0.00 0.00 0.00 0.00 0.00 0.00 0.0 0.00 0.00 | 0.9 -4.7 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 2.1151.4 GPS week: 1151 Day: 4 MJD: 52305.5 Weighted Average PRN | brd cou emu esu gfu jpu siu usu igu igr IGR | ------|----------------------------------------------| 1 | 265 6 6 29 12 16 15 10 5 0 0 | 2 | 180 83 71 --- 75 57 55 95 69 0 0 | 3 | 134 7 8 26 12 12 10 9 7 0 0 | 4E | 186 42 24 60 31 40 21 23 18 0 0 | 5 | 176 8 5 16 4 13 6 10 5 0 0 | 6 | 232 21 6 21 19 13 7 16 9 0 0 | 7 | 169 8 35 14 10 38 11 18 11 0 0 | 8 | 123 39 4 27 6 11 10 32 6 0 0 | 9 | 130 8 6 19 8 13 5 12 5 0 0 | 10 | 191 8 8 10 12 10 3 9 4 0 0 | 11E | 116 31 10 27 25 17 12 19 9 0 0 | 13 | 171 6 11 19 8 40 18 10 11 0 0 | 14 | 205 11 12 25 11 7 7 8 6 0 0 | 15E | 402 11 --- --- 50 --- --- --- --- 0 0 | 17E | 184 191 --- --- --- --- --- --- --- 0 0 | 18 | 160 10 4 10 7 35 18 19 8 0 0 | 20 | 90 10 5 34 7 --- 10 8 5 0 0 | 21 | 303 432 --- --- --- --- --- 786 --- 0 0 | 22 | 138 16 17 18 11 6 19 8 9 0 0 | 23 | 333 13 6 --- 6 7 3 57 9 0 0 | 24E | 182 18 51 92 --- 36 83 --- 56 0 0 | 25 | 226 14 6 22 6 15 6 7 7 0 0 | 26 | 137 10 8 16 9 12 29 14 6 0 0 | 27 | 245 15 11 24 8 18 16 13 8 0 0 | 28 | 88 13 25 12 14 34 34 8 11 0 0 | 29 | 254 20 --- --- 9 23 --- 77 18 0 0 | 30 | 67 8 7 15 6 8 11 10 5 0 0 | 31 | 309 9 14 13 6 12 10 16 7 0 0 | ------|----------------------------------------------| RMS | 208 92 20 27 20 23 23 151 19 0 | WRMS | 208 18 13 19 19 24 25 25 9 0 | MEDI | 181 12 8 20 9 14 11 13 8 0 |