From: Wolfgang Soehne Author : W. Soehne Date: 31 Mar 1999 11:20:53 Subject: [IGEXMail-0273] Wk 0995 GFZ IGEX Analysis Report Subject ****************************************************************************** IGEX Electronic Mail 31-Mar-1999 11:20:53 Message No 0273 ****************************************************************************** Author: Wolfgang Soehne Subject: Wk 0995 GFZ IGEX Analysis Report Author : W. Soehne Subject: Wk 0995 GFZ IGEX Analysis Report ****************************************************************************** GFZ IGEX ANALYSIS REPORT GPS-WEEK 0995 (DAYS 99 031-037, DATES 31-01-99 TO 06-02-99) ****************************************************************************** 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, 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: IRKZ is used as time reference no offset and trend correction is performed The orbit files (gfx09950.sp3 - gfx09956.sp3) and this summary file (gfx09957.sum) are available at CDDIS (directory /products/0995). 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 032 033 034 035 036 037 MEAN ------------------------------------------------------ 3 34 38 29 58 5 144 51 4 13 5 22 6 53 165 44 6 442 55 10 58 32 38 106 7 205 295 6 4 42 19 95 8 26 369 419 82 19 74 165 9 22 155 66 123 117 26 84 10 - - - - - - - 11 18 31 83 195 39 179 91 13 52 14 10 35 16 81 35 16 296 980 986 859 233 61 569 17 89 40 53 30 49 5 44 20 28 155 83 30 34 66 66 22 63 18 35 58 60 63 50 MEAN 176 376 390 313 84 104 MEDI 34 40 35 58 39 63 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: 031 to 037 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 31 UP NORTH EAST UP NORTH EAST | -------------------------------------------------------------------------------- 3SNA 127.7 35.1 86.6 -333.9 24.0 -54.0 9730 NNNNNNN BIPD 27.5 9.8 9.2 -67.3 38.4 -5.8 9990 NNNNNNN BORG 8.9 1.3 10.9 -46.9 -2.6 -.2 9680 UUUUUUU BRUG 11.3 1.8 4.3 -43.4 10.4 15.7 9670 UUUUUUU CRAR 5.6 8.0 8.0 8.7 29.3 9.8 9480 UUUUUUU CSIR 394.0 93.8 156.2 216.9 2.7 -231.4 9700 NNNNNNN DLRA 25.8 6.9 8.9 -185.0 7.6 -6.9 9720 NNNNNNN GATR 21.4 41.9 91.5 67.3 -42.4 638.9 9800 NNNNNNN GODZ 14.1 3.5 4.0 40.8 3.0 22.5 9690 UUUUUUU GRAB 4.3 1.8 3.6 24.4 1.5 -4.9 9570 UUUUUUU HERP 23.0 12.4 6.5 -3.2 54.9 30.3 9790 NNNNNNN IRKZ 3.8 5.7 5.3 -13.9 .7 -24.2 9760 UUUUUUU KHAB 6.7 5.7 3.4 -44.5 6.8 -14.8 9770 UUUUUUU KR0G 5.4 1.1 2.0 9.3 -13.7 1.1 9820 UUUUUUU LDS1 13.6 1.5 4.1 -117.5 7.5 15.2 9880 NNNNNNN LINR 18.3 4.2 38.2 -466.7 209.4 94.3 9740 NNNN..N LRBA 3.3 2.0 3.9 13.7 7.9 15.3 9910 UUUUUUU MDOA 38.9 11.6 38.4 -5.2 20.6 609.1 9530 NNNNNNN MDVZ 2.3 1.5 3.4 26.5 31.8 6.0 9780 UUUUUUU METZ 5.1 1.5 1.5 -10.8 -2.8 -6.8 9830 UUUUUUU NPLC .0 .0 .0 -86.4 60.9 -10.4 9970 N...... OS0G 5.7 .6 1.5 -2.3 2.6 -9.2 9930 UUUUUUU REUN 6.7 3.3 4.0 -17.0 22.5 54.1 9490 UUUUU.. SANG 77.3 27.3 35.0 -78.9 -351.5 241.2 9620 NNNNNN. SL1X 16.0 8.2 2.7 25.8 9.3 .5 9950 UU.UUUU STRR 5.0 3.7 3.2 23.0 -8.8 -49.7 9560 UUUUUUU SUNM 4.1 7.9 7.5 22.2 -2.8 35.5 9460 UUUUUUU SUTG 460.7 120.8 174.8 -566.0 293.7 -246.6 9550 NNNNNNN SVT3 51.5 6.9 13.7 -81.5 -32.1 91.2 9450 NNNNNNN THU2 4.5 1.3 3.7 9.3 -3.1 -34.7 9630 UUUUUUU TSKA 3.7 6.2 6.5 -41.4 11.9 -30.6 9590 UUUUUUU USNX 51.6 5.6 29.8 66.9 101.1 27.8 9960 NNNNNNN VSLD 11.5 2.5 1.9 -2.8 2.4 15.6 9900 UUUUUUU WTZR 493.1 170.2 545.5 438.3 745.6 1725.5 9510 ....NNN WTZZ 2.8 1.0 1.5 -10.1 10.7 -9.7 9512 ....UUU YARR 7.4 2.6 8.0 1.0 -4.5 -14.2 9920 UUUUUUU ZIMZ 10.1 3.8 5.6 21.2 3.0 6.1 9650 UUUUUUU Remarks: 3SNA, CSIR, NPLC, SANG and WTZR are sites with only few useable observations GATR, MDOA and SVT3 are sites with L1/L2 receivers where only the GLONASS observations are used SUTG has single frequency data