From: Heinz Habrich Date: 07 Oct 1999 10:27:05 Subject: [IGEXMail-0486] Wk 1007 BKG IGEX Analysis Report ****************************************************************************** IGEX Electronic Mail 07-Oct-1999 10:27:05 Message No 0486 ****************************************************************************** Author: Heinz Habrich Subject: Wk 1007 BKG IGEX Analysis Report ****************************************************************************** BKG IGEX ANALYSIS REPORT GPS WEEK 1007 (DAYS 115 - 121, 1999) ****************************************************************************** Submitted by: Bundesamt fuer Kartographie und Geodaesie (BKG) Geodetic Department, G1 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 coordinates of the following stations are contrained to ITRF-96: IRKZ OS0G YARR ZIMZ. 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: 101 103 104 106 107 108 109 110 111 113 116 117 120 122 ------------------------------------------------------------------------------ 115 10 11 7 6 12 14 15 -- 12 18 17 9 9 11 116 8 8 7 5 7 11 10 -- 10 9 22 11 17 9 117 14 8 7 9 6 14 11 33 14 12 37 9 12 6 118 11 9 11 8 10 12 14 21 14 10 21 13 11 6 119 6 13 8 7 5 11 15 25 20 15 16 10 13 8 120 10 11 18 7 7 14 8 21 29 11 31 16 11 16 121 11 11 12 12 11 8 15 17 12 16 27 11 17 13 ------------------------------------------------------------------------------ ALL 10 10 11 8 9 12 13 24 17 13 25 12 13 11 ------------------------------------------------------------------------------ ------------------------------------------------------------------------------ GLONASS/GPS TIME OFFSET: ------------------------------------------------------------------------------ OFFSET (NS) RMS ERROR (NS) DAY : 115 116 117 118 119 120 121 STATION ------------------------------------------------------------------------------ 3SNA 975.246 974.523 996.105 982.696 979.621 988.136 991.623 .899 .913 .920 .869 .912 .894 1.166 BIPD 981.889 993.893 995.632 984.415 1.055 .960 .895 .907 BORG 969.998 975.915 986.407 981.345 986.836 990.380 980.416 .856 .873 .851 .838 .882 .812 .815 BRUG 972.452 978.768 988.767 984.252 990.647 995.720 .874 .873 .858 .881 1.091 1.063 CSIR 972.097 974.583 990.536 980.892 991.281 995.784 985.204 .909 .950 .929 1.272 .936 .925 .876 DLFT -125.524 -113.294 -117.480 -113.318 -111.472 -120.218 .851 .826 .827 .858 .801 .807 GRAB 35.746 43.454 1.013 1.890 GODZ 51.551 37.467 38.648 43.335 41.638 1.356 1.369 .973 1.174 1.223 HERP 974.338 981.891 992.820 986.410 992.978 990.381 983.378 .938 .934 .931 .947 .955 1.504 .924 IRKZ 25.623 28.000 43.708 35.353 28.396 41.479 .848 .887 .942 .871 .920 .877 KR0G -39.633 -37.979 -24.872 -29.684 -30.600 -21.759 -33.810 .785 .981 .811 1.039 .961 .927 .978 LDS1 -984.942 -966.043 -954.339 -956.996 -954.899 -960.723 -956.119 2.059 1.152 1.118 1.069 1.222 1.138 1.109 MDVZ 24.738 30.552 45.834 37.511 41.013 46.538 39.113 1.539 1.060 .927 .916 .841 .857 1.157 METZ 6.818 15.206 30.388 25.095 23.358 32.361 22.851 .865 .888 .871 .930 1.011 1.041 .836 MTKA 25.095 24.009 47.007 31.287 29.979 36.227 34.032 .850 1.013 .953 .901 1.038 .950 .863 NPLC 973.496 979.385 990.362 984.914 990.979 989.807 983.432 .896 .896 .889 .868 .895 .966 .858 OS0G 6.967 11.506 22.795 21.453 21.566 25.586 17.858 1.048 .868 .925 .793 .941 .988 .767 REUN 28.160 2.279 SANG 967.262 969.684 985.791 982.548 976.990 992.467 970.680 .935 .940 .862 .872 .853 1.017 .893 STRR 2.097 10.272 28.139 14.579 9.964 .936 .968 .945 .904 .922 SUNM -101.356 -112.106 .952 1.010 THU2 15.987 18.738 29.246 27.494 23.884999967.920999978.476 .783 .814 .924 .819 .955 .845 .996 TSKA 15.117 27.449 15.911 26.865 23.462 1.636 1.067 1.021 .973 .929 USNX 970.351 974.482 991.526 982.168 983.550 983.694 979.123 .886 .909 .890 .899 .931 .865 .881 VSLD 972.594 979.578 990.864 992.803 990.302 994.928 .878 1.043 1.081 1.801 1.091 1.304 WTZG -781.613 .981 WTZZ 40.051 44.580 48.930 36.947 1.238 1.089 .991 .960 YARR 26.496 36.453 56.496 40.440 .938 .895 .826 .950 ZIMZ 13.385 9.801 14.178 17.404 20.489 9.985 1.299 1.435 1.015 1.002 .920 1.080 ------------------------------------------------------------------------------ ------------------------------------------------------------------------------ STATISTICS FOR 1 DAY SOLUTIONS: ------------------------------------------------------------------------------ DAY OBSERVATIONS PARAMETERS RMS (M) ------------------------------------------------------------------------------ 115 50732 1800 .0013 116 64538 2196 .0013 117 72568 2174 .0013 118 76007 2121 .0013 119 75508 2508 .0013 120 72975 2380 .0013 121 58562 2036 .0012 ------------------------------------------------------------------------------ ------------------------------------------------------------------------------ COORDINATE COMPARISON FOR 1 DAY SOLUTIONS: GPS WEEK 1007 ------------------------------------------------------------------------------ TOTAL NUMBER OF STATIONS: 25 ------------------------------------------------------------------------------ WEEKDAY RESIDUAL RMS IN MM STATION #DAYS 0123456 N E U ------------------------------------------------------------------------------ 3SNA 7 PPPPPPP 52 84 344 BIPD 4 P PPP 3 10 22 BORG 7 PPPPPPP 3 6 16 BRUG 6 PPPPPP 3 6 13 DLFT 6 PPPPPP 2 4 4 GODZ 5 PPPPP 11 12 23 GRAB 2 PP 2 4 3 HERP 6 PPP PPP 20 35 68 IRKZ 6 PPPPPP - - - FIXED KR0G 7 PPPPPPP 3 2 6 LDS1 7 PPPPPPP 3 8 12 MDVZ 7 PPPPPPP 2 5 7 METZ 7 PPPPPPP 3 3 8 MTKA 7 PPPPPPP 22 8 26 NPLC 7 PPPPPPP 12 33 62 OS0G 7 PPPPPPP - - - FIXED REUN 1 P - - - STRR 5 PPPPP 15 61 10 SUNM 2 PP 6 109 50 THU2 7 PPPPPPP 10 9 11 TSKA 5 P PPPP 26 9 33 VSLD 6 PPPPPP 4 11 19 WTZZ 4 P PPP 1 3 4 YARR 4 PPPP - - - FIXED ZIMZ 6 PPPPPP - - - FIXED ------------------------------------------------------------------------------ ------------------------------------------------------------------------------ STATISTICS FOR 3 DAY SOLUTIONS: ------------------------------------------------------------------------------ MID-DAY OBSERVATIONS PARAMETERS RMS (M) ------------------------------------------------------------------------------ 115 189810 5153 .0013 116 187838 4995 .0013 117 213113 5311 .0013 118 224083 5570 .0013 119 224490 5747 .0013 120 207045 5645 .0013 121 178413 4926 .0013 ------------------------------------------------------------------------------ ------------------------------------------------------------------------------ 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] ------------------------------------------------------------------------------ 115 .332 -.423 -.601 45.54 .37 -347.09 .0097 4.32 116 .315 -.036 -.325 43.45 .44 -352.64 .0080 3.75 117 -.354 -.086 -.361 42.92 -.71 -343.79 .0093 3.66 118 -.270 -.478 -.567 42.39 -2.14 -351.95 .0121 4.47 119 -.105 .146 -.354 39.32 -8.93 -358.33 .0108 4.59 120 .095 .394 -.206 36.46 -2.99 -354.76 .0093 3.81 121 .088 -.067 -.222 42.51 -2.44 -341.45 .0097 2.95 ------------------------------------------------------------------------------