From: Wolfgang Soehne Author : W. Soehne Date: 10 Feb 1999 14:10:19 Subject: [IGEXMail-0197] Wk 0991 GFZ IGEX Analysis Report Subject ****************************************************************************** IGEX Electronic Mail 10-Feb-1999 14:10:19 Message No 0197 ****************************************************************************** Author: Wolfgang Soehne Subject: Wk 0991 GFZ IGEX Analysis Report Author : W. Soehne Subject: Wk 0991 GFZ IGEX Analysis Report ****************************************************************************** GFZ IGEX ANALYSIS REPORT GPS-WEEK 0991 (DAYS 99 003-009, DATES 03-01-99 TO 09-01-99) ****************************************************************************** Submitted by: GeoForschungsZentrum Potsdam (GFZ) Telegrafenberg A17, D-14473 Potsdam, Germany e-mail:gend@gfz-potsdam.de fax: (0331) 288 1111 tel: (0331) 288 1114 SOLUTION CHARACTERISTICS - Software used : EPOS.P.V2 - Data used: - undifferenced carrier phases - the following observations are used: - stations with GPS and GLONASS dual frequency measurements: all observations are used except for SVT3, SUNM, CRAR, MDOA and GATR: only GLONASS observations are used - stations with GPS single frequency and GLONASS dual frequency measurements: only GLONASS observations are used - stations with GPS and GLONASS single frequency measurements: only GLONASS observations are used, with lower weighting - Earth rotation parameters are fixed to their initial values - GPS orbits from the IGS final solution are introduced and fixed (except eclipsing GPS satellites) - Coordinates of only one station (ZIMZ) are fixed to their initials in the determination of ORBITS - Adjusted parameters: - state vector of GLONASS satellites (and eclipsing GPS satellites) - coordinate corrections - tropospheric zenith path delay (4 h) - y-bias, solar radiation scaling factor - ambiguities - STA and SV clock parameters of each observation epoch - one clock bias per station and day - The orbit parameter stem from the middle day of a 3-day-solution CLOCK ESTIMATION: IRKZ is used as time reference no offset and trend correction is performed ORBITS REPEATABILITY (cm): (mean component error rms =sqrt((xrms**2 + yrms**2 + zrms**2)/3) ) DAY 1 (24 h) pred. DAY 2 (24 h) |------------------------|--------| |------------------------| 7.75-hour overlap: |xxxxxxxx| -------------------------------------------------- RMS for DAY PRN 004 005 006 007 008 009 -------------------------------------------------- 3 77 40 59 103 35 28 4 16 61 131 129 76 25 6 34 32 15 105 115 94 9 55 22 17 22 26 110 10 - - - - - - 11 40 79 113 33 14 39 13 26 112 90 47 64 37 16 85 41 48 15 22 67 17 166 51 69 56 95 120 20 101 120 59 91 60 66 22 48 69 137 146 94 163 REPEATABILITY OF STATION COORDINATE SOLUTIONS by Residuals of Helmert-transformation (units:mm) YEAR: 99 DAYS: 3 to 9 U,u: used for parameter determination in Helmert-transformation N,n: not used [ u,n: deleted for repeatability computation (2.5*sigma) ] SITE _____REPEATABILITY_____ __________BIAS__________ NUMB 3 UP NORTH EAST UP NORTH EAST | -------------------------------------------------------------------------------- 3SNA 107.9 23.7 99.8 -436.0 -21.1 -158.2 9730 NNNNNNN BIPD 50.2 6.4 4.8 -28.9 29.8 -20.5 9990 ..UUUUU BORG 19.6 5.9 7.8 -52.7 -14.1 -4.0 9680 UUUUUUU BRUG 14.1 4.3 5.9 -30.2 2.3 7.8 9670 UUUUUUU CRAR 51.9 36.2 28.1 81.4 -1.1 29.3 9480 UUUUUUU CSIR 273.6 120.5 341.1 -167.9 -25.3 -199.9 9700 NNNUNUU GATR 75.2 14.3 34.5 13.9 -35.8 108.6 9800 UUUUUNU GODZ 12.8 13.2 19.5 22.9 -24.3 -21.3 9690 UUUUUU. GRAB 7.9 5.3 7.1 10.3 10.5 3.3 9570 UUUUUUU HERP 24.7 7.5 7.2 2.1 54.0 14.7 9790 UUUUUUU IRKZ 11.0 5.4 8.5 -2.4 5.2 -10.0 9760 UUUUUUU KHAB 17.9 7.3 10.8 -15.5 6.6 -71.5 9770 UUUUUUU KR0G 11.1 3.5 2.9 3.2 -2.9 .2 9820 UUUUUUU LDS1 11.4 3.3 5.5 -92.1 .8 -2.9 9880 UUUUUUU LRBA 8.2 6.3 6.4 21.6 -.6 .6 9910 UUUUUUU MDOA 57.0 15.6 41.2 -8.8 -44.8 572.8 9530 NNNNNNN MDVZ 8.6 2.0 3.4 37.0 32.3 -9.8 9780 UUUUUUU METZ 6.3 2.6 3.0 7.0 -5.6 -20.7 9830 UUUUUUU MTKA 18.1 8.6 13.0 3.4 14.2 -52.5 9870 UUUUUUU NPLC 18.3 20.6 25.9 -8.7 44.3 -40.7 9970 UUUUUUU OS0G 6.0 2.6 4.9 15.1 -7.3 -8.1 9930 UUUUUUU REUN 22.2 19.1 28.0 -69.8 25.8 104.6 9490 UUUNUUU REYZ 11.6 4.6 8.0 4.8 -1.3 20.2 9710 UUUUUUU SANG 180.0 107.6 71.3 -252.9 -485.5 375.2 9620 NNNNNNN STRR 22.1 13.8 28.2 -12.4 -9.1 45.6 9560 UUUUUUU SUNM 41.9 29.3 100.8 13.0 16.5 631.3 9460 NNN.NNN SUTG 1044.0 70.7 299.6 -662.2 393.4 45.8 9550 NNNNNNN SVT3 20.2 8.9 25.1 -81.4 -34.5 77.0 9450 .NNNNNN THU2 22.9 15.6 18.7 22.2 -25.0 -41.3 9630 UUUUUUU TSKA 21.8 8.1 11.8 -31.5 3.7 -28.1 9590 UUUUUUU USNX 86.1 23.4 34.8 -37.2 80.4 25.8 9960 UUUUUUN VSLD 11.8 6.1 5.0 15.9 -5.2 8.2 9900 UUUUUUU YARR 19.2 22.0 19.3 36.9 .8 -56.1 9920 UUUUUUU ZIMZ 4.3 6.8 8.3 21.0 -.4 8.7 9650 UUUUUUU Remarks: CSIR, SANG and 3SNA are sites with only few useable observations SUTG has single frequency data