From: dineiche@ubeclu.unibe.ch (D. Ineichen) Author: M. Rothacher Date: 20 Nov 1998 16:47:14 Subject: [IGEXMail-0084] Wk 0981 CODE IGEX Analysis Report Precedence: bulk ****************************************************************************** IGEX Electronic Mail 20-Nov-1998 16:47:14 Message No 0084 ****************************************************************************** Author: dineiche@ubeclu.unibe.ch (D. Ineichen) Subject: Wk 0981 CODE IGEX Analysis Report Author: M. Rothacher Dear Colleagues, since our IGEXMAIL No.75 from Nov. 16, 1998 was not distributed - at least not to all members of the IGEXMAIL distribution list - we resend the corre- sponding e-mail. We apologize to all who already received this analysis report. ******************************************************************************* CODE IGEX REPORT GPS WEEK 0981 (DAYS 298-304, DATES 25-10-98 - 31-10-98) ******************************************************************************* Submitted by: Astronomical Institute, University of Berne, Switzerland Products available through anonymous ftp using: ftp ubeclu.unibe.ch -or- ftp 130.92.6.17 after login: cd aiub$ftp; cd code ------------------------------------------------------------------------------- PROCESSING STRATEGY: ------------------------------------------------------------------------------- - The analysis was done by fixing the GPS orbits and Earth rotation parameters to the CODE final GPS solution. - The orbital parameters for the GLONASS satellites were estimated using double difference phase observations (including double differences between GLONASS and GPS satellites). Six initial conditions and nine radiation pressure para- meters per satellite were determined. No pseudo-stochastic pulses have been introduced up to now. - So far only receivers providing dual frequency GPS and GLONASS or dual fre- quency GLONASS measurements were included in the solution. - The daily orbit results stem from the middle day of a 3-day arc. - The satellite clock values included in the precise orbit files are broadcast clock values for the GLONASS satellites (no improvement done so far) and precise CODE estimates for the GPS satellites. - At present only the site ZIMZ (Zimmerwald, Switzerland) was constrained to its ITRF96 coordinates. ------------------------------------------------------------------------------- FILES SENT TO GLOBAL DATA CENTERS: ------------------------------------------------------------------------------- COX0981N.EPH GLONASS/GPS DAILY SATELLITE EPHEMERIDES, SP3 FORMAT (N=0..6) COX09817.SUM THIS TEXT FILE ------------------------------------------------------------------------------- The orbit files sent to the Global Data Centers are named as follows: COXwwwwN.EPH, where 'CO' stands for CODE, 'X' for IGEX, 'wwww' for GPS week, and 'N' for day of week. The naming was changed from 'CORwwwwN.EPH' to 'COXwwwwN.EPH' in order to allow a generic naming convention of the IGEX products with an 'X' for all ACs (an 'R' is already used for the EMR GPS product names). ------------------------------------------------------------------------------- ------------------------------------------------------ THREE DAY SOLUTION STATISTICS: ------------------------------------------------------ MIDDLE DAY FILES OBSERVATIONS PARAMETERS RMS (MM) ------------------------------------------------------ 298 20 88408 1993 1.4 299 23 101420 2206 1.4 300 23 109462 2119 1.4 301 29 143204 2876 1.4 302 31 145859 3054 1.4 303 35 164017 3693 1.3 304 32 170195 3597 1.3 ------------------------------------------------------ ------------------------------------------------------------------------------- ORBIT REPEATABILITY FROM A 7-DAY FIT THROUGH DAILY ORBIT SOLUTIONS (CM) ------------------------------------------------------------------------------- 103 104 106 109 110 111 112 113 115 116 117 118 120 122 ------------------------------------------------------------------------------- 298 22 19 19 63 144 64 93 71 46 106 42 23 35 24 299 27 27 26 55 106 62 66 59 48 93 33 19 20 19 300 48 39 25 78 96 51 64 49 52 86 33 16 20 19 301 34 39 40 48 76 54 38 33 55 38 49 15 17 21 302 25 37 44 47 119 41 68 36 53 77 26 20 16 19 303 23 22 55 48 111 48 106 53 67 79 58 16 18 19 304 31 22 42 65 155 64 122 76 75 111 19 18 19 25 ------------------------------------------------------------------------------- ALL 31 31 38 59 118 56 84 56 57 87 39 18 22 21 ------------------------------------------------------------------------------- ------------------------------------------------------------------------------- WEEKLY COORDINATE COMPARISON OF 1-DAY (Z1) SOLUTIONS ------------------------------------------------------------------------------- TOTAL NUMBER OF STATIONS: 17 ------------------------------------------------------------------------------- WEEKDAY RESIDUAL RMS IN MM STATION #DAYS 0123456 N E U ------------------------------------------------------------------------------- 3SNA 49918S001 4 P PPP 33 155 456 BORG 12205M004 3 P PP 3 13 29 BRUG 13101M005 3 PPP 4 1 10 DLRA 14208M002 5 P PPP P 4 9 9 GODZ 7 PPPPPPP 4 21 22 IRKZ 7 PPPPPPP 6 9 15 KHAB 5 P PPPP 6 13 13 KR0G 10422M001 6 P PPPPP 2 9 5 LDS1 13215M001 1 P - - - LRBA 10093M001 1 P - - - METZ 10503M005 4 P P PP 1 8 11 MTKA 21741S002 1 P - - - OS0G 10402M004 1 P - - - REYZ 10202M003 6 PPPPP P 3 4 8 SL1X 40446S001 6 PPPPPP 10 5 10 VSLD 13502M008 1 P - - - ZIMZ 14001M005 7 PPPPPPP - - - FIXED -------------------------------------------------------------------------------