From: dineiche@ubeclu.unibe.ch (D. Ineichen) Author: M. Rothacher Date: 03 Mar 1999 15:10:17 Subject: [IGEXMail-0230] Wk 0991 CODE IGEX Analysis Report Precedence: bulk ****************************************************************************** IGEX Electronic Mail 03-Mar-1999 15:10:17 Message No 0230 ****************************************************************************** Author: dineiche@ubeclu.unibe.ch (D. Ineichen) Subject: Wk 0991 CODE IGEX Analysis Report Author: M. Rothacher ******************************************************************************* CODE IGEX REPORT GPS WEEK 0991 (DAYS 003-009, DATES 03-01-99 - 09-01-99) ******************************************************************************* 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. - At present only the site ZIMZ (Zimmerwald, Switzerland) was constrained to its ITRF96 coordinates. ------------------------------------------------------------------------------- FILES SENT TO GLOBAL DATA CENTERS: ------------------------------------------------------------------------------- COX0991N.EPH GLONASS/GPS DAILY SATELLITE EPHEMERIDES, SP3 FORMAT (N=0..6) COX09917.SUM THIS TEXT FILE ------------------------------------------------------------------------------- ------------------------------------------------------ FIVE DAY SOLUTION STATISTICS: ------------------------------------------------------ MIDDLE DAY FILES OBSERVATIONS PARAMETERS RMS (MM) ------------------------------------------------------ 3 106 454225 10813 1.4 4 108 463152 11269 1.4 5 110 466982 11242 1.4 6 109 484036 11176 1.4 7 110 501334 11438 1.4 8 109 482137 11116 1.4 9 106 457357 10483 1.4 ------------------------------------------------------ ------------------------------------------------------------------------------- ORBIT REPEATABILITY FROM A 7-DAY FIT THROUGH DAILY ORBIT SOLUTIONS (CM) ------------------------------------------------------------------------------- 103 104 106 109 110 111 113 116 117E120E122E ------------------------------------------------------------------------------- 3 6 6 7 6 44 5 13 6 7 6 6 4 3 4 9 8 22 5 11 7 3 6 7 5 5 3 8 5 21 4 9 6 4 5 3 6 6 5 6 9 17 5 10 7 6 6 7 7 4 4 7 6 17 4 6 8 5 6 6 8 8 7 7 8 20 8 8 9 7 10 7 9 4 4 12 10 20 5 9 12 8 5 5 ------------------------------------------------------------------------------- ALL 5 5 8 7 25 5 10 8 6 7 6 ------------------------------------------------------------------------------- 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: 24 ------------------------------------------------------------------------------- WEEKDAY RESIDUAL RMS IN MM STATION #DAYS 0123456 N E U ------------------------------------------------------------------------------- 3SNA 49918S001 7 PPPPPPP 85 122 238 BIPD 10094M001 5 PPPPP 14 6 38 BORG 12205M004 6 P PPPPP 6 8 19 BRUG 13101M005 6 PP PPPP 3 10 13 GODZ 5 PPPPP 8 27 37 HERP 13212M009 7 PPPPPPP 19 17 55 IRKZ 6 PPPPPP 9 7 6 KHAB 7 PPPPPPP 9 7 8 KR0G 10422M001 7 PPPPPPP 3 4 7 LDS1 13215M001 6 PPPPP P 6 9 23 LRBA 10093M001 7 PPPPPPP 2 5 4 MDVZ 7 PPPPPPP 4 6 14 METZ 10503M005 7 PPPPPPP 4 7 5 MTKA 21741S002 6 P PPPPP 7 6 12 NPLC 13234M001 7 PPPPPPP 19 39 124 OS0G 10402M004 7 PPPPPPP 4 4 3 REUN 97401M003 6 PP PPPP 32 23 49 *) REYZ 10202M003 7 PPPPPPP 2 4 11 STRR 50119M002 7 PPPPPPP 25 110 21 *) THU2 43001M002 7 PPPPPPP 3 6 8 TSKA 21730M003 7 PPPPPPP 8 8 11 VSLD 13502M008 7 PPPPPPP 3 8 10 YARR 50107M006 7 PPPPPPP 34 49 18 *) ZIMZ 14001M005 7 PPPPPPP - - - FIXED ------------------------------------------------------------------------------- *) Very isolated sites -------------------------------------------------------------------------------