From: Heinz Habrich Date: 25 Jan 1999 10:01:04 Subject: [IGEXMail-0169] Wk 0983 BKG IGEX Analysis Report ****************************************************************************** IGEX Electronic Mail 25-Jan-1999 10:01:04 Message No 0169 ****************************************************************************** Author: Heinz Habrich Subject: Wk 0983 BKG IGEX Analysis Report ****************************************************************************** BKG IGEX ANALYSIS REPORT GPS WEEK 0983 (DAYS 312 - 318, 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: 103E104E106E109 110 111 113 115 116 117 118 120 122 ------------------------------------------------------------------------------ 312 14 11 17 22 56 30 17 17 29 14 10 10 8 313 10 15 11 16 23 16 19 13 44 29 7 8 7 314 12 11 9 28 49 7 12 7 46 21 7 10 10 315 21 10 16 6 25 9 14 20 29 12 13 8 9 316 27 16 13 29 19 11 19 29 99 18 8 11 9 317 19 19 18 25 29 19 23 31 37 22 14 13 15 318 18 14 21 24 53 14 20 7 38 13 12 11 17 ------------------------------------------------------------------------------ ALL 18 14 15 23 39 17 18 20 57 19 10 10 11 ------------------------------------------------------------------------------ ------------------------------------------------------------------------------ GLONASS/GPS TIME OFFSET: ------------------------------------------------------------------------------ OFFSET (NS) RMS ERROR (NS) DAY : 312 313 314 315 316 317 318 STATION ------------------------------------------------------------------------------ 3SNA 1031.842 1045.356 1033.086 1035.182 1012.838 1017.394 2.242 1.130 1.056 1.047 1.046 1.008 BIPD 1034.947 1043.103 1035.748 1024.026 1034.483 1033.829 1016.929 1.622 1.345 1.184 1.148 1.150 1.201 1.100 BORG 1028.374 1036.736 1038.598 1022.538 1032.975 1021.115 1011.872 1.408 1.182 1.124 .946 .957 .974 .929 BRUG 1030.471 1048.934 1047.850 1026.532 1035.557 1016.474 1011.996 1.422 .988 2.201 .982 .996 1.004 .964 CSIR 1032.791 1016.998 1034.896 1030.595 1035.391 1016.724 1005.605 1.489 1.303 1.011 1.034 .979 1.060 1.013 GATR 36.824 63.702 53.098 36.114 45.304 25.337 19.622 1.480 1.246 1.067 .962 .991 .985 1.019 GODZ 97.455 85.779 36.484 81.843 62.104 58.783 1.782 2.586 14.655 .978 .954 1.033 HERP 1035.420 1032.554 1050.056 1029.172 1036.928 1026.404 1010.333 1.558 1.371 1.182 1.199 1.132 1.005 1.098 IRKZ 93.769 92.441 87.500 83.668 76.949 76.597 67.857 1.369 1.221 1.039 .928 .963 .939 .941 KHAB 90.060 90.582 83.402 77.018 67.534 69.913 60.005 1.383 1.208 1.042 1.216 .966 .958 .937 KR0G 22.372 32.864 27.251 13.741 20.842 10.514 -1.560 1.299 1.082 1.005 .871 .874 .880 .837 LDS1 -905.784 -932.719 -919.441 -915.199 -910.106 -930.261 -935.417 2.859 2.537 1.543 1.295 1.431 1.317 1.395 LRBA 75.405 90.456 70.343 81.088 65.966 52.704 1.457 1.065 .950 .957 .990 .920 MDVZ 89.904 92.376 98.785 83.641 91.613 79.497 71.167 1.393 1.197 1.053 .925 .938 .936 .905 METZ 66.454 67.732 52.724 68.527 54.504 46.688 3.833 1.245 1.407 .898 .907 .868 MTKA 86.358 86.470 79.903 1.422 1.242 1.037 OS0G 71.217 79.093 79.080 64.965 74.530 60.139 51.376 1.343 1.164 1.076 .906 .916 .920 .876 REYZ 110.090 1.363 SL1X 69.090 91.641 77.860 54.923 65.717 44.694 42.983 1.431 1.213 1.060 .948 .964 .944 .928 USNX 998706.227 1052.860 1058.132999112.023 1033.265 1012.438998937.789 4.587 1.297 2.030 10.530 1.028 1.012 11.825 VSLD 1033.761 1043.098 1041.325 1024.666 1038.255 1026.322 1012.625 1.438 1.198 1.100 1.023 1.204 1.413 1.190 WTZG -714.149 -731.807 -731.668 1.280 1.046 1.081 ZIMZ 65.435 72.313 72.424 53.547 65.509 52.261 39.446 1.572 1.738 1.047 .937 .946 .971 .909 ------------------------------------------------------------------------------ ------------------------------------------------------------------------------ STATISTICS FOR 1 DAY SOLUTIONS: ------------------------------------------------------------------------------ DAY OBSERVATIONS PARAMETERS RMS (M) ------------------------------------------------------------------------------ 312 74318 2252 .0016 313 59164 1612 .0014 314 71247 1901 .0014 315 62606 1993 .0014 316 68835 2032 .0013 317 68481 2232 .0014 318 80452 2541 .0014 ------------------------------------------------------------------------------ ------------------------------------------------------------------------------ COORDINATE COMPARISON FOR 1 DAY SOLUTIONS: GPS WEEK 0983 ------------------------------------------------------------------------------ TOTAL NUMBER OF STATIONS: 21 ------------------------------------------------------------------------------ WEEKDAY RESIDUAL RMS IN MM STATION #DAYS 0123456 N E U ------------------------------------------------------------------------------ 3SNA 4 PP PP 43 12 46 BIPD 4 P PPP 6 17 11 BORG 7 PPPPPPP 4 7 16 BRUG 7 PPPPPPP 5 9 10 GATR 7 PPPPPPP 6 8 16 GODZ 5 PP PPP 8 14 10 HERP 6 PP PPPP 8 21 26 IRKZ 5 PPPP P 5 5 13 KHAB 5 PPPP P 7 7 8 KR0G 7 PPPPPPP 6 5 5 LDS1 7 PPPPPPP 7 6 20 LRBA 6 P PPPPP 2 4 8 METZ 6 PPPPPP 6 7 3 MTKA 3 PPP 1 3 1 OS0G 7 PPPPPPP 3 4 7 REYZ 1 P - - - SL1X 7 PPPPPPP 5 9 12 USNX 4 PPPP 14 10 70 VSLD 6 P PPPPP 12 23 42 WTZG 3 PPP 3 14 33 ZIMZ 7 PPPPPPP 2 1 1 ------------------------------------------------------------------------------ ------------------------------------------------------------------------------ STATISTICS FOR 3 DAY SOLUTIONS: ------------------------------------------------------------------------------ MID-DAY OBSERVATIONS PARAMETERS RMS (M) ------------------------------------------------------------------------------ 312 201093 4860 .0016 313 204729 4827 .0015 314 193017 4525 .0015 315 202688 4803 .0014 316 199922 4993 .0014 317 217768 5463 .0014 318 223399 5548 .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] ------------------------------------------------------------------------------ 312 .281 .430 -.118 28.51 -25.35 -378.01 .0110 5.42 313 -.166 .199 .152 31.92 -29.20 -367.12 .0155 4.82 314 .072 .518 -.827 29.65 -32.76 -374.69 .0123 5.21 315 .315 .662 -1.373 33.11 -26.93 -373.92 .0164 4.81 316 -.102 .121 -1.208 37.85 -33.97 -369.35 .0230 3.83 317 .290 .117 -1.258 32.51 -26.53 -356.42 .0229 4.41 318 .048 -.050 -.226 47.23 -28.57 -352.85 .0207 5.20 ------------------------------------------------------------------------------