Author: AC Coordinator / AIUB/CODE Ultra Rapid IGS Orbit Comparison - Week 1195 Day: 3 Hour: 12 (Dec 04, 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 2. Because of a maneuver, some satellites were excluded from the Prediction combination. The following table lists the maneuvered satellites: PRN | Date | Ref. NANU ----+------------+----------- 23 | 2002_12_04 | 2002146 _______________________________________________________________________________ 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 1.1195.3 GPS week: 1195 Day: 3 MJD: 52612.5 CENT STA| DX DY DZ RX RY RZ SCL RMS WRMS | TOFT TDRFT RMS --------|------------------------------------------------|--------------------- brd |-.40-0.28 0.00 3.12 4.07 0.10 7.674.5774.57 | -0.3 0.1 66.59 cou n/a|0.00-0.02-0.02 -1.65 -0.48 -0.29 -0.4 3.25 0.27 | -3.7 13.0 20.52 emu n/a|0.02-0.01-0.02 -0.48 0.02 0.54 0.0 0.71 0.26 | 1564.5 13.3 5.12 esu n/a|0.00-0.02 0.03 -1.15 -2.59 1.60 0.2 0.27 0.17 | 1553.3 11.1 5.04 gfu n/a|-.03-0.01-0.01 -0.29 -0.16 0.26 -0.1 0.10 0.10 | 0.4 -3.6 6.37 jpu n/a|0.06-0.02-0.01 0.11 0.12 0.67 0.3 0.15 0.15 | 0.0 0.0 0.00 siu n/a|0.04-0.01 0.00 -0.88 0.69 -0.15 -0.1 0.62 0.16 | 0.0 0.0 0.00 usu n/a|-.01 0.01 0.03 -0.99 0.18 -0.27 -0.2 0.71 0.15 | 882.1 -53.4 4.20 igu n/a|0.02-0.01-0.01 -0.43 -0.08 0.42 0.1 0.13 0.08 | -1.6 -1.0 4.48 igr n/a|0.00 0.00 0.00 0.00 0.00 0.00 0.0 0.00 0.00 | 0.3 -3.8 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 2.1195.3 GPS week: 1195 Day: 3 MJD: 52612.5 Weighted Average PRN | brd cou emu esu gfu jpu siu usu igu igr IGR | ------|----------------------------------------------| 1 | 225 6 8 11 3 11 7 2 3 0 0 | 2 | 185 29 11 11 29 14 9 29 16 0 0 | 3E | 113 49 28 22 10 8 11 48 14 0 0 | 4 | 83 13 24 12 12 23 11 8 9 0 0 | 5 | 131 6 8 11 7 11 6 16 3 0 0 | 6E | 380 50 11 28 15 15 11 60 6 0 0 | 7E | 100 9 9 43 12 26 21 13 12 0 0 | 8 | 443 9 16 23 4 10 10 20 10 0 0 | 9E | 144 6 86 23 10 8 79 12 30 0 0 | 10E | 204 12 287 13 10 8 298 24 7 0 0 | 11 | 278 10 7 25 9 10 22 9 6 0 0 | 13 | 228 8 8 15 7 11 19 7 7 0 0 | 14 | 250 7 16 19 4 12 7 4 7 0 0 | 15 | 242 13 11 --- 10 20 --- 21 13 0 0 | 17 | 159 >>> 43 13 --- 21 --- --- 29 0 0 | 18 | 254 7 8 27 3 14 10 4 4 0 0 | 20 | 162 5 5 16 11 13 12 24 4 0 0 | 22E | >>> 4 26 11 9 --- 16 9 10 0 0 | 24 | 102 356 178 98 --- 23 --- 341 --- 0 0 | 25E | 160 7 11 19 5 14 10 10 2 0 0 | 26 | 423 5 44 25 4 17 52 15 15 0 0 | 27 | 92 5 18 16 3 9 5 9 6 0 0 | 28 | 161 4 9 22 5 15 23 8 9 0 0 | 29E | 373 652 48 --- 17 22 --- --- 23 0 0 | 30 | 207 7 7 10 6 6 12 4 3 0 0 | 31E | 165 39 27 21 11 13 9 58 12 0 0 | ------|----------------------------------------------| RMS | >>> 325 71 27 10 15 62 71 13 0 | WRMS | >>> 27 26 17 10 15 16 15 8 0 | MEDI | 195 9 14 19 9 13 11 13 9 0 |