From: Wolfgang Soehne Author : W. Soehne Date: 15 Jan 1999 16:57:39 Subject: [IGEXMail-0153] Wk 0988 GFZ IGEX Analysis Report Subject Precedence: bulk ****************************************************************************** IGEX Electronic Mail 15-Jan-1999 16:57:39 Message No 0153 ****************************************************************************** Author: Wolfgang Soehne Subject: Wk 0988 GFZ IGEX Analysis Report Author : W. Soehne Subject: Wk 0988 GFZ IGEX Analysis Report ****************************************************************************** GFZ IGEX ANALYSIS REPORT GPS-WEEK 0988 (DAYS 347-353, DATES 13-12-98 TO 19-12-98) ****************************************************************************** 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 - 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 (BISZ, RIOZ and SUTG) - elevation mask 15 degree except for single frequency stations (25 degree) - the observations of all stations are equally weighted - 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 FILES sent to global data center CDDIS: gfx0988i.sp3: GLONASS orbit and clock parameter (7 files) gfx09887.sum: this summary file 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 348 349 350 351 352 353 ------------------------------------------- 3 130 101 108 77 53 52 4 103 102 57 123 75 57 6 38 121 161 103 104 61 9 7 6 18 6 65 18 10 - - - - - - 11 24 7 6 23 69 76 12 - - - - - - 13 21 45 59 20 6 4 14 - - - - - - 15 - - - - - - 16 30 46 86 78 71 25 17 109 92 62 92 137 176 18 - - - - - - 20 138 107 81 98 85 89 21 - - - - - - 22 127 165 79 83 102 83 REPEATABILITY OF STATION COORDINATE SOLUTIONS by Residuals of Helmert-transformation (units:mm) YEAR: 98 DAYS: 346 to 354 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 346 353 UP NORTH EAST UP NORTH EAST | | -------------------------------------------------------------------------------- 3SNA 12.7 39.7 12.8 -7.5 1.0 -3.7 9730 UUUUU.U UU BIPD 4.8 7.2 10.0 -2.1 22.1 8.6 9990 UU.UUUU UU BISZ 20.8 44.8 55.9 10.6 -86.8 -5.3 9580 NUUUUNU UU BORG 6.2 3.0 3.5 -3.7 -7.6 -3.3 9680 UUUUUnU UU BRUG 4.0 2.3 4.1 -2.9 -9.4 -1.9 9670 ..UUUUU UU CSIR 149.8 185.1 196.2 -62.2 14.4 -223.5 9700 NNUNN.N UN DLRA .0 .0 .0 -12.4 -7.4 -4.4 9720 U...... .. GODZ 18.5 29.2 7.4 -2.8 -11.2 6.7 9690 .U..U.U UU GRAB 6.9 2.4 5.2 -.8 -1.8 .8 9570 .UUUUUU UU HERP 3.7 4.6 7.3 -.5 21.8 -7.9 9790 ..UUUUU UU IRKZ 9.9 5.7 8.9 3.4 10.3 7.8 9760 UUUUUUU UU KHAB 6.8 4.2 9.2 3.7 7.9 5.4 9770 UUUUUUU UU KR0G 2.8 3.5 3.4 -.7 -.3 -5.1 9820 UUUUUUU UU LDS1 3.6 3.4 3.8 -4.2 -8.4 -1.0 9880 UUUUUU. .. LRBA 4.8 3.3 4.4 -2.7 -6.6 .3 9910 UUUUUUU UU MDOA 9.9 22.3 8.2 -9.9 -25.1 4.4 9530 UUUUU.. .. METZ 4.6 3.3 3.1 -.5 -.3 -4.4 9830 .UUUUUU UU MTKA 5.4 5.1 6.6 1.0 9.4 8.6 9870 U.U.UUU UU NPLC 4.5 5.0 8.5 -3.2 -5.5 -3.7 9970 UU..U.U UU OS0G 4.6 2.1 3.4 -3.0 -5.2 -3.2 9930 UUUU..U .. REUN 29.7 24.0 21.7 13.6 11.0 -.9 9490 ...UUUU UU REYZ 4.6 5.3 4.1 -3.0 -8.1 .0 9710 UUUUUUU UU RIOZ 7.9 158.3 33.1 -63.2 245.8 22.2 9610 .UNUU.. NN SANG 54.8 54.5 81.1 -81.2 -270.8 6.6 9620 .NNNN.. NN SL1X 14.5 18.4 3.0 -.7 -7.8 3.8 9950 ...UUUU UU STRR 18.7 9.0 15.5 27.8 17.2 6.2 9560 UUUUUU. .. SUTG 49.2 63.0 85.7 29.6 46.3 51.2 9550 UUUNU.N UU THU2 3.9 1.7 1.4 -4.3 -12.6 -2.9 9630 ...U... U. TSKA 4.2 6.1 9.7 4.5 6.9 8.4 9590 ..UUUUU .. USNX 52.4 107.2 234.9 84.6 -296.1 156.6 9960 NNN.N.N NU VSLD 4.8 3.0 7.4 5.6 28.9 5.3 9900 UUUUUNU UU YARR 27.6 20.3 12.3 25.9 28.1 -8.3 9920 UUU.... .. ZIMZ 6.2 3.0 5.2 -2.4 -6.0 1.4 9650 UUUUUUU UU Remarks: RIOZ and SANG are isolated sites SUTG and CSIR are isolated sites USNX is a site with only few useable observations