From: Heinz Habrich Date: 21 Jan 1999 13:17:11 Subject: [IGEXMail-0163] Wk 0982 BKG IGEX Analysis Report ****************************************************************************** IGEX Electronic Mail 21-Jan-1999 13:17:11 Message No 0163 ****************************************************************************** Author: Heinz Habrich Subject: Wk 0982 BKG IGEX Analysis Report ****************************************************************************** BKG IGEX ANALYSIS REPORT GPS WEEK 0982 (DAYS 305 - 311, 1998) ****************************************************************************** Submitted by: Bundesamt fuer Kartographie und Geodaesie (BKG) Richard-Strauss-Allee 11, D-60598 Frankfurt Main, Germany Phone : +49-69-63331 Fax : +49-69-6333425 E-Mail: habrich@ifag.de Product access: anonymous ftp to igs.ifag.de (141.74.240.26) subdirectory IGEX/products/wwww ------------------------------------------------------------------------------ PROCESSING SCHEME: ------------------------------------------------------------------------------ SOFTWARE: Bernese GPS Software ORBIT COMPUTATION: Double difference phase observations of GLONASS and GPS satellites are processed in ionosphere free linear combination. IGS orbits and Earth rotation parameters are fixed. Six initial conditions and nine radiation preassure parameters per satellite are determined for GLONASS satellites. The middle day of a 3-day-arc is used for the daily orbit results. The daily orbit files include GPS satellite clock values from IGS estimates and broadcasted values for GLONASS satellite clocks. The station Zimmerwald in Switzerland (ZIMZ) is constrained to the ITRF96 coordinates. GLONASS/GPS TIME OFFSET: Code observations of combined GLONASS/GPS receivers are used to determine the GLONASS/GPS time offset. This offset includes the modulo 1 sec system time scale difference of GLONASS and GPS and an additional offset between the receiver's 'GPS clock' and 'GLONASS clock'. The additional offset is receiver dependent. TRANSFORMATION PARAMETERS BETWEEN ITRF AND PZ90: The transformation parameters are derived from GLONASS precise orbits (given in ITRF) and GLONASS broadcast orbits (given in PZ90). ------------------------------------------------------------------------------ ------------------------------------------------------------------------------ ORBIT REPEATABILITY, DAILY SOLUTIONS COMPARED TO 7-DAY-ARC (CM): ------------------------------------------------------------------------------ GLONASS Satellites: 103 104 106 109 110 111 112 113 115 116 117 118 120 122 ------------------------------------------------------------------------------ 305 8 15 21 24 34 14 56 30 18 46 15 10 11 10 306 11 9 18 19 11 16 56 32 13 21 17 13 8 13 307 22 14 12 21 25 14 53 0 13 19 14 21 9 8 308 20 18 21 19 28 14 87 0 13 46 19 24 19 15 309 15 15 14 30 67 14 99 62 22 16 11 11 13 12 310 12 12 22 14 53 11 0 56 27 16 9 14 17 26 311 18 20 33 19 34 25 0 32 22 24 13 11 16 18 ------------------------------------------------------------------------------ ALL 16 15 21 21 40 16 82 45 19 30 14 16 14 15 ------------------------------------------------------------------------------ ------------------------------------------------------------------------------ GLONASS/GPS TIME OFFSET: ------------------------------------------------------------------------------ OFFSET (NS) RMS ERROR (NS) DAY : 305 306 307 308 309 310 311 STATION ------------------------------------------------------------------------------ 3SNA 1072.141 1052.352 1053.980 1046.984 1048.863 1039.616 1.057 .880 1.012 .931 .965 .922 BIPD 1063.354 1064.733 1057.699 1006.350 1061.015 1049.690 1053.575 1.082 .971 1.108 10.529 1.194 1.048 1.082 BORG 1059.163 1056.459 1042.515 1048.615 1052.347 1042.477 1046.978 1.616 .868 .951 .865 .918 .894 .876 BRUG 1061.172 1059.152 1050.295 1050.886 1053.982 1045.686 1050.342 .933 .888 1.005 .922 .961 .956 .900 CSIR 1058.975 1050.953 1057.545 .922 .923 1.001 GATR 80.976 69.594 31.177 1.043 3.129 1.622 GODZ 113.394 96.819 88.719 93.077 99.327 88.986 95.508 .966 .839 1.040 2.405 .903 .941 1.137 HERP 1062.485 1054.132 1057.490 1056.546 1049.144 1057.329 .913 1.025 .979 1.267 .981 1.177 IRKZ 109.124 111.178 90.747 111.527 93.851 103.600 .863 .832 1.015 .872 .851 .836 KHAB 101.969 102.145 86.434 92.231 99.249 84.608 .883 .845 .990 .860 .867 .860 KR0G 46.187 44.395 30.343 35.491 40.617 30.368 36.813 .832 .774 .864 .794 .806 .801 .793 LDS1 -883.829 -883.486 -895.956 -894.409 -892.212 -905.975 -904.181 1.282 1.087 1.514 1.256 1.406 1.601 1.583 LRBA 106.641 105.730 91.821 96.293 101.531 90.159 95.003 .884 .836 .961 .866 .919 .934 .871 MDVZ 113.252 113.714 96.120 104.729 109.939 99.386 102.951 .856 .819 1.010 .834 .865 .858 .840 METZ 87.444 94.211 80.458 84.892 88.302 78.550 1.324 .788 .890 .815 .829 1.218 MTKA 96.809 82.478 97.083 .873 .849 .897 OS0G 98.803 83.914 89.263 91.602 81.541 86.307 .840 .910 .823 .853 .844 .815 REYZ 138.187 129.929 131.569 137.714 124.357 119.768 .773 .908 .821 .830 .831 .800 SL1X 101.408 87.170 78.244 83.072 88.324 76.807 85.415 .943 .822 1.022 .863 .888 .859 .848 USNX 999090.092 1044.554 1037.613 1043.688 1047.677998928.225999177.654 10.685 1.273 1.111 .920 1.009 11.437 11.469 VSLD 1056.472 1056.897 1046.565 1048.882 1049.528 1043.901 1045.914 .901 .872 .977 .894 .946 .948 .899 WTZG -699.004 1.008 ZIMZ 90.332 89.039 75.050 80.547 84.035 75.099 78.726 .874 .828 .958 .859 .900 .897 .858 ------------------------------------------------------------------------------ ------------------------------------------------------------------------------ STATISTICS FOR 1 DAY SOLUTIONS: ------------------------------------------------------------------------------ DAY OBSERVATIONS PARAMETERS RMS (M) ------------------------------------------------------------------------------ 305 76251 2025 .0014 306 78814 2469 .0016 307 78274 2365 .0014 308 65919 1959 .0014 309 88677 2462 .0014 310 81209 2315 .0015 311 67611 1968 .0016 ------------------------------------------------------------------------------ ------------------------------------------------------------------------------ COORDINATE COMPARISON FOR 1 DAY SOLUTIONS: GPS WEEK 0982 ------------------------------------------------------------------------------ TOTAL NUMBER OF STATIONS: 21 ------------------------------------------------------------------------------ WEEKDAY RESIDUAL RMS IN MM STATION #DAYS 0123456 N E U ------------------------------------------------------------------------------ 3SNA 6 PPPPPP 49 51 66 BIPD 6 PPP PPP 5 5 18 BORG 7 PPPPPPP 6 11 17 BRUG 7 PPPPPPP 4 6 12 CSIR 1 P - - - GATR 3 PPP 6 16 27 GODZ 7 PPPPPPP 5 9 14 HERP 5 PPPP P 29 28 24 IRKZ 6 PPP PPP 5 8 10 KHAB 5 PP PPP 5 9 24 KR0G 7 PPPPPPP 5 5 7 LDS1 7 PPPPPPP 5 11 16 LRBA 7 PPPPPPP 4 7 6 METZ 6 PPPPPP 4 4 7 MTKA 3 PPP 3 12 8 OS0G 6 P PPPPP 4 5 7 REYZ 6 PPPPPP 4 10 6 SL1X 7 PPPPPPP 7 8 10 VSLD 6 PPPPPP 11 20 28 WTZG 4 P PPP 15 16 43 ZIMZ 7 PPPPPPP 2 1 1 ------------------------------------------------------------------------------ ------------------------------------------------------------------------------ STATISTICS FOR 3 DAY SOLUTIONS: ------------------------------------------------------------------------------ MID-DAY OBSERVATIONS PARAMETERS RMS (M) ------------------------------------------------------------------------------ 305 230430 5463 .0015 306 233339 5645 .0015 307 223007 5562 .0015 308 232870 5569 .0014 309 235805 5548 .0015 310 237497 5567 .0016 311 223138 5429 .0016 ------------------------------------------------------------------------------ ------------------------------------------------------------------------------ TRANSFORMATION PARAMETERS BETWEEN ITRF AND PZ90: ------------------------------------------------------------------------------ USAGE: | X | | X | | DX | | SCALE RZ -RY | | X | | Y | = | Y | + | DY | + | -RZ SCALE RX | * | Y | | Z | | Z | | DZ | | RY -RX SCALE | | Z | ITRF PZ90 PZ90 ------------------------------------------------------------------------------ RMS = RMS of transformed coordinates DX DY DZ RX RY RZ SCALE RMS DAY [m] [m] [m] [mas] [mas] [mas] [10E6] [m] ------------------------------------------------------------------------------ 305 .138 .298 .594 27.05 -37.22 -387.48 .0040 4.23 306 -.117 -.041 .248 30.43 -42.48 -378.51 .0031 4.99 307 -.590 -.035 -.537 33.23 -39.40 -360.87 .0147 7.12 308 .095 -.207 -.963 35.13 -27.13 -350.83 .0172 4.50 309 .306 -.123 -.984 32.20 -27.20 -346.53 .0224 3.79 310 .500 -.305 -1.409 30.69 -30.40 -341.56 .0166 4.87 311 .847 -.261 -.989 37.96 -14.36 -368.67 .0115 6.62 ------------------------------------------------------------------------------