From: dineiche@ubeclu.unibe.ch (D. Ineichen) Author: M. Rothacher Date: 13 Apr 1999 12:53:02 Subject: [IGEXMail-0286] Wk 0995 CODE IGEX Analysis Report Precedence: bulk ****************************************************************************** IGEX Electronic Mail 13-Apr-1999 12:53:02 Message No 0286 ****************************************************************************** Author: dineiche@ubeclu.unibe.ch (D. Ineichen) Subject: Wk 0995 CODE IGEX Analysis Report Author: M. Rothacher ******************************************************************************* CODE IGEX REPORT GPS WEEK 0995 (DAYS 031-037, DATES 31-01-99 - 06-02-99) ******************************************************************************* 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 5-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. - For the computation of the final orbits site ZIMZ (Zimmerwald, Switzerland), site OS0G (Onsala, Sweden), and site YARR (Yaragadee, Australia) were fixed to their ITRF96 coordinates. ------------------------------------------------------------------------------- FILES SENT TO GLOBAL DATA CENTERS: ------------------------------------------------------------------------------- COX0995N.EPH GLONASS/GPS DAILY SATELLITE EPHEMERIDES, SP3 FORMAT (N=0..6) COX09957.SUM THIS TEXT FILE ------------------------------------------------------------------------------- ------------------------------------------------------ FIVE DAY SOLUTION STATISTICS: ------------------------------------------------------ MIDDLE DAY FILES OBSERVATIONS PARAMETERS RMS (MM) ------------------------------------------------------ 31 122 490680 12854 1.4 32 118 476819 12714 1.4 33 113 453649 12182 1.4 34 110 436975 11819 1.4 35 106 432756 11284 1.4 36 103 416986 10975 1.4 37 102 410151 10642 1.4 ------------------------------------------------------ ------------------------------------------------------------------------------- ORBIT REPEATABILITY FROM A 7-DAY FIT THROUGH DAILY ORBIT SOLUTIONS (CM) ------------------------------------------------------------------------------- 103 104 106 107 108 109 110 111 113 116 117 118 120 122 ------------------------------------------------------------------------------- 31 6 5 9 7 5 7 24 43 5 7 7 -- 5 19 32 6 9 11 9 7 6 11 41 9 7 8 -- 8 8 33 3 5 5 3 7 3 6 41 5 8 3 -- 6 4 34 7 9 9 9 9 6 6 9 6 6 5 -- 8 10 35 4 4 5 4 6 4 5 40 6 5 5 4 6 6 36 9 8 8 7 8 13 10 33 8 10 5 6 9 8 37 4 6 5 5 6 6 12 47 7 6 8 4 5 5 ------------------------------------------------------------------------------- ALL 6 7 8 7 7 7 12 38 7 7 6 5 7 10 ------------------------------------------------------------------------------- Remark: These RMS values may be too optimistic, because we fit the middle days of 5-day arcs with a 7-day arc. ------------------------------------------------------------------------------- WEEKLY COORDINATE COMPARISON OF 1-DAY (Z1) SOLUTIONS ------------------------------------------------------------------------------- TOTAL NUMBER OF STATIONS: 25 ------------------------------------------------------------------------------- WEEKDAY RESIDUAL RMS IN MM STATION #DAYS 0123456 N E U ------------------------------------------------------------------------------- 3SNA 49918S001 5 PPP PP 28 84 48 BIPD 10094M001 7 PPPPPPP 15 9 37 BORG 12205M004 6 PP PPPP 13 8 37 BRUG 13101M005 7 PPPPPPP 13 8 32 CRAR 66001M004 7 PPPPPPP 10 7 20 DLRA 14208M002 5 PPPPP 6 7 36 HERP 13212M009 7 PPPPPPP 24 24 32 IRKZ 7 PPPPPPP 10 16 12 KHAB 7 PPPPPPP 16 14 10 KR0G 10422M001 7 PPPPPPP 9 7 20 LDS1 13215M001 7 PPPPPPP 15 10 21 LINR 3 PPP 6 22 38 LRBA 10093M001 7 PPPPPPP 13 8 23 MDVZ 7 PPPPPPP 9 11 26 METZ 10503M005 4 PP PP 10 8 30 NPLC 13234M001 6 PPPPPP 81 82 138 OS0G 10402M004 6 P PPPPP 10 6 23 REUN 97401M003 4 PPPP 12 35 20 STRR 50119M002 7 PPPPPPP 7 8 7 SUNM 50143M001 7 PPPPPPP 7 9 25 THU2 43001M002 7 PPPPPPP 11 11 14 TSKA 21730M003 7 PPPPPPP 17 15 6 VSLD 13502M008 6 PPP PPP 13 5 30 YARR 50107M006 7 PPPPPPP - - - FIXED ZIMZ 14001M005 5 PPPP P - - - FIXED -------------------------------------------------------------------------------