From: Heinz Habrich Date: 12 Mar 1999 10:19:12 Subject: [IGEXMail-0241] Wk 0988 BKG IGEX Analysis Report ****************************************************************************** IGEX Electronic Mail 12-Mar-1999 10:19:12 Message No 0241 ****************************************************************************** Author: Heinz Habrich Subject: Wk 0988 BKG IGEX Analysis Report ****************************************************************************** BKG IGEX ANALYSIS REPORT GPS WEEK 0988 (DAYS 347 - 353, 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 pressure 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: 103E104E106E109 110 111 113 116 117E118E120E122E ------------------------------------------------------------------------------ 347 11 17 24 53 77 33 30 34 20 0 8 12 348 12 17 15 39 91 34 28 57 16 99 5 18 349 20 15 11 27 57 15 40 97 17 99 8 10 350 23 20 19 25 48 28 27 36 21 99 9 13 351 14 12 23 47 95 34 31 37 17 99 4 9 352 12 6 14 22 99 39 54 83 10 99 4 9 353 7 15 16 32 61 30 42 55 21 99 6 12 ------------------------------------------------------------------------------ ALL 15 15 18 37 78 31 37 61 18 0 7 12 ------------------------------------------------------------------------------ ------------------------------------------------------------------------------ GLONASS/GPS TIME OFFSET: ------------------------------------------------------------------------------ OFFSET (NS) RMS ERROR (NS) DAY : 347 348 349 350 351 352 353 STATION ------------------------------------------------------------------------------ 3SNA 1063.415 1058.495 1057.515 1062.005 1061.280 1069.919 1058.923 .986 .983 1.011 .972 1.033 1.001 .975 BIPD 1066.536 1065.267 1066.746 1063.563 1069.560 1066.912 1.015 1.051 1.061 1.044 1.049 .988 BORG 1059.435 1052.960 1059.793 1060.521 1056.170 1066.259 1059.668 .942 .964 .981 .967 .970 .946 .924 BRUG 1048.977 1062.336 1063.366 1058.134 1067.366 1061.964 1.256 .983 .984 .935 .954 .919 CSIR 1061.594 1056.590 1063.808 1061.072 1052.081 1069.917 1060.729 .944 .957 1.020 1.361 1.004 1.040 1.030 GRAB 112.446 106.658 112.830 114.128 106.100 116.231 110.490 .970 .980 .983 .981 .969 .928 .948 GODZ 109.677 101.681 101.751 110.648 102.335 117.311 103.023 .974 .983 .943 .938 .937 .958 .925 HERP 1063.594 1059.680 1063.996 1066.662 1060.326 1070.046 1062.731 1.011 .995 .988 1.018 .969 .989 .978 IRKZ 113.072 108.547 111.441 113.415 112.506 117.735 113.785 .922 .925 .936 .919 .925 .886 .916 KHAB 105.660 103.023 104.516 105.510 101.587 112.021 104.927 .930 .945 .928 .936 .949 .917 .929 KR0G 46.968 42.158 44.568 47.549 44.301 53.418 47.753 .875 .872 .856 .860 .851 .850 .845 LDS1 -876.947 -886.670 -885.862 -888.990 -886.254 -878.416 1.420 1.500 1.306 1.208 1.217 1.318 LRBA 111.013 98.285 108.318 109.283 104.297 111.515 107.029 .948 .967 .979 .963 1.780 .934 .941 MDVZ 117.427 111.114 118.489 116.788 114.957 122.590 115.640 .962 .927 .923 .922 .916 .887 .921 METZ 92.045 90.039 97.783 99.348 96.290 104.682 96.947 1.122 .903 .895 .897 .878 .874 .879 MTKA 109.401 97.991 112.598 109.028 116.871 113.127 .963 2.768 .941 .976 .943 .958 NPLC 1058.477 1053.900 1063.436 1063.872 1038.632 1068.875 1062.296 .950 1.241 1.455 .967 1.867 .954 .927 OS0G 94.084 91.790 95.864 97.732 92.885 102.627 96.083 .902 .928 .918 .907 .893 .897 .888 REYZ 142.540 135.267 140.759 140.820 134.053 140.189 143.448 .902 .925 .891 .899 .872 .889 .879 SANG 1050.961 1050.086 1053.437 1054.194 1046.747 1054.893 .988 .975 .978 .981 1.041 .949 SL1X 80.163 93.138 85.238 100.497 87.099 1.799 .939 .909 .922 .907 STRR 91.841 87.772 96.041 95.115 93.384 .943 .977 1.021 1.042 .989 THU2 103.665 97.063 98.827 103.994 100.599 120.279113836.421 .848 .876 .840 .842 .840 1.538 16254.471 TSKA 97.068 97.752 103.983 98.257 107.443 .972 .937 .949 .977 .962 USNX 1059.564 1056.554 1052.848 1058.892 1053.011 1067.173 1053.773 1.033 1.050 .983 .987 .959 1.020 .978 VSLD 1080.137 1076.885 1073.378 1058.915 1054.968 1065.628 1058.291 .944 .986 1.005 1.026 .997 .979 .951 WTZG -693.909 -693.634999308.743 1.334 1.673 1.148 YARR 124.168 110.484 1.330 1.539 ZIMZ 90.619 86.237 90.659 94.364 86.537 97.785 88.395 .931 .967 .967 .967 .942 .952 .928 ------------------------------------------------------------------------------ ------------------------------------------------------------------------------ STATISTICS FOR 1 DAY SOLUTIONS: ------------------------------------------------------------------------------ DAY OBSERVATIONS PARAMETERS RMS (M) ------------------------------------------------------------------------------ 347 83210 2642 .0014 348 102664 2967 .0014 349 93927 2917 .0014 350 109968 3068 .0014 351 107696 3098 .0014 352 99766 2403 .0014 353 93848 2371 .0014 ------------------------------------------------------------------------------ ------------------------------------------------------------------------------ COORDINATE COMPARISON FOR 1 DAY SOLUTIONS: GPS WEEK 0988 ------------------------------------------------------------------------------ TOTAL NUMBER OF STATIONS: 26 ------------------------------------------------------------------------------ WEEKDAY RESIDUAL RMS IN MM STATION #DAYS 0123456 N E U ------------------------------------------------------------------------------ 3SNA 7 PPPPPPP 46 41 47 BIPD 6 P PPPPP 3 9 26 BORG 7 PPPPPPP 4 6 12 BRUG 6 PPPPPP 3 6 13 GODZ 7 PPPPPPP 7 9 7 GRAB 7 PPPPPPP 3 5 8 HERP 4 PP PP 12 10 12 IRKZ 7 PPPPPPP 7 8 7 KHAB 7 PPPPPPP 9 4 16 KR0G 7 PPPPPPP 5 3 8 LDS1 6 PPPPP P 4 7 23 LRBA 7 PPPPPPP 2 9 7 METZ 7 PPPPPPP 4 3 10 MTKA 6 PPPPPP 9 3 10 NPLC 5 PPPP P 123 27 128 OS0G 7 PPPPPPP 3 5 6 REYZ 7 PPPPPPP 4 4 5 SL1X 5 PPPPP 7 11 7 STRR 5 PPPPP 73 319 174 THU2 6 PPPPPP 4 4 10 TSKA 5 PPPPP 8 4 10 USNX 6 PPPPP P 17 49 82 VSLD 7 PPPPPPP 3 4 6 WTZG 2 PP 13 36 40 YARR 2 PP 107 211 72 ZIMZ 7 PPPPPPP 2 2 1 ------------------------------------------------------------------------------ ------------------------------------------------------------------------------ STATISTICS FOR 3 DAY SOLUTIONS: ------------------------------------------------------------------------------ MID-DAY OBSERVATIONS PARAMETERS RMS (M) ------------------------------------------------------------------------------ 347 274742 6882 .0015 348 279801 7134 .0015 349 306559 7481 .0014 350 311591 7549 .0014 351 317430 7172 .0014 352 301310 6558 .0014 353 285250 6138 .0014 ------------------------------------------------------------------------------ ------------------------------------------------------------------------------ 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] ------------------------------------------------------------------------------ 347 -.023 -.021 .595 46.38 5.63 -323.87 .0174 5.00 348 -.389 -.311 -.517 42.99 9.22 -310.47 .0147 4.46 349 .055 .131 -.356 44.75 -2.26 -311.05 .0186 3.51 350 -.373 .110 -.393 46.95 -1.70 -312.52 .0146 3.36 351 -.040 .205 -.164 42.17 1.03 -326.85 .0122 4.83 352 -.505 .271 -.580 44.54 -1.35 -313.52 .0070 3.32 353 .098 .638 -.479 28.50 7.17 -329.50 .0046 4.32 ------------------------------------------------------------------------------