From: Wolfgang Soehne Date: 07 Apr 1999 11:36:30 Subject: [IGEXMail-0276] Wk 0996 GFZ IGEX Analysis Report ****************************************************************************** IGEX Electronic Mail 07-Apr-1999 11:36:30 Message No 0276 ****************************************************************************** Author: Wolfgang Soehne Subject: Wk 0996 GFZ IGEX Analysis Report ****************************************************************************** GFZ IGEX ANALYSIS REPORT GPS-WEEK 0996 (DAYS 99 038-044, DATES 07-02-99 TO 13-02-99) ****************************************************************************** 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, 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 (corrected for ionosphere), with lower weighting - Earth rotation parameters are fixed to the estimated values of IGS - 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 - nine radiation pressure parameters per satellite - The orbit parameter stem from the middle day of a 3-day-solution CLOCK ESTIMATION: OS0G is used as time reference no offset and trend correction is performed The orbit files (gfx09960.sp3 - gfx09966.sp3) and this summary file (gfx09967.sum) are available at CDDIS (directory /products/0996). 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 039 040 041 042 043 044 MEAN ------------------------------------------------------ 3 40 14 4 73 47 38 36 4 29 56 11 9 92 68 44 6 55 15 99 55 22 42 48 7 8 57 46 31 91 53 48 8 73 72 60 13 44 63 54 9 19 17 119 176 29 86 74 10 - - - - - - - 11 22 30 35 43 169 281 97 13 82 118 16 27 97 62 67 16 292 141 177 363 230 135 223 17 75 28 47 43 6 17 36 20 63 21 65 37 124 95 68 22 56 79 29 16 18 7 34 MEAN 98 67 76 122 104 105 MEDI 55 30 46 37 47 62 Remark: For satellite 16 only 10-25 % of observations remaining in the adjustment REPEATABILITY OF STATION COORDINATE SOLUTIONS by Residuals of Helmert-transformation (units:mm) YEAR: 99 DAYS: 038 to 044 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 38 UP NORTH EAST UP NORTH EAST | -------------------------------------------------------------------------------- 3SNA 44.8 14.6 25.3 -172.6 32.5 -125.2 9730 NNNNNNN BIPD 31.9 8.0 29.2 -34.0 27.7 22.6 9990 NNNN.NN BORG 13.9 3.5 2.4 -33.4 -1.8 1.1 9680 UUUUUUN BRUG 4.3 3.3 10.0 -22.7 .2 21.5 9670 UUUUUUU CRAR .0 .0 .0 -16.2 15.8 .4 9480 U...... DLRA 27.2 2.2 6.0 -139.8 .0 -11.1 9720 NNNNNNN GATR 56.1 30.2 38.8 35.5 2.5 595.4 9800 NNNNN.. GRAB 5.2 3.2 1.5 21.5 -3.6 -1.8 9570 UUUUUUU HERP 33.3 10.2 10.6 30.4 65.6 7.7 9790 NNNNNNN IRKZ 12.1 3.8 3.7 -18.7 -6.2 5.4 9760 UUUUUUU KHAB 7.3 5.6 6.0 -33.2 -2.0 .9 9770 UUUUUUU KR0G 4.6 2.3 2.7 11.4 -7.9 5.8 9820 UUUUUUU LDS1 5.8 3.5 5.4 -108.5 3.1 9.8 9880 .NNNNNN LINR 43.5 11.3 145.9 -419.6 227.8 188.1 9740 NNNNNNN LRBA 3.8 4.8 5.1 14.2 5.4 11.6 9910 UUUUUUU MAGD 4.8 5.9 2.6 -.4 27.1 -16.9 9430 UUUUUUU MDOA 158.0 18.8 64.1 57.2 52.2 600.0 9530 NNNNNNN MDVZ 4.6 4.5 3.4 5.4 35.7 8.3 9780 UUUUUUU METZ 3.8 2.9 2.4 -15.8 3.1 -6.5 9830 UUUUUUU OS0G 3.8 1.6 1.9 -7.5 1.5 -8.8 9930 UUUUUUU PKST 6.4 7.4 4.5 20.6 14.0 .1 9420 UUUUUUU REUN 18.9 43.0 22.4 -15.6 -26.1 71.6 9490 ..NNNNN SL1X 11.0 15.9 3.4 3.9 .3 -5.9 9950 UUUUUUU STRR 34.6 16.5 133.5 46.9 -7.5 52.1 9560 UUUUUNN SUNM 34.5 10.6 124.8 79.7 2.1 139.0 9460 UUNNNNN SUTG .0 .0 .0 1116.4 515.5 -838.3 9550 N...... SVT3 50.2 1.4 12.3 -238.4 -16.0 73.5 9450 NN..... THU2 10.9 6.3 3.3 20.8 -5.4 -41.9 9630 UUUUUU. TSKA 8.8 6.9 11.4 -27.8 5.3 -9.3 9590 UUUUUUU USNX 3.9 6.1 6.1 55.7 91.6 39.3 9960 ....NNN VSLD 6.8 3.3 4.0 25.9 -2.7 20.4 9900 UUUUUUU WTZZ 4.4 2.7 1.6 -13.8 4.7 -9.9 9512 UUUUUUU YAKT 6.7 3.0 3.0 -6.9 19.1 -16.2 9440 UUUUUUU YARR 14.3 4.6 18.8 22.3 -11.8 3.5 9920 UUUUU.. ZIMJ 4.3 2.9 1.3 87.4 30.1 35.1 9652 NNNNNNN ZIMZ 3.7 4.0 5.5 9.9 .7 14.0 9650 .UUUUUU Remarks: GATR, MDOA and SVT3 are sites with L1/L2 receivers where only the GLONASS observations are used SUTG has single frequency data BIAS means the deviation from our initial coordinates used in the adjustment