From: dineiche@ubeclu.unibe.ch (D. Ineichen) Author: M. Rothacher Date: 24 Dec 1998 13:22:47 Subject: [IGEXMail-0132] Wk 0984 CODE IGEX Analysis Report Precedence: bulk ****************************************************************************** IGEX Electronic Mail 24-Dec-1998 13:22:47 Message No 0132 ****************************************************************************** Author: dineiche@ubeclu.unibe.ch (D. Ineichen) Subject: Wk 0984 CODE IGEX Analysis Report Author: M. Rothacher ******************************************************************************* CODE IGEX REPORT GPS WEEK 0984 (DAYS 319-325, DATES 15-11-98 - 21-11-98) ******************************************************************************* 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 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: ------------------------------------------------------------------------------- COX0984N.EPH GLONASS/GPS DAILY SATELLITE EPHEMERIDES, SP3 FORMAT (N=0..6) COX09847.SUM THIS TEXT FILE ------------------------------------------------------------------------------- ------------------------------------------------------ THREE DAY SOLUTION STATISTICS: ------------------------------------------------------ MIDDLE DAY FILES OBSERVATIONS PARAMETERS RMS (MM) ------------------------------------------------------ 319 73 305184 7415 1.2 320 73 298068 7118 1.2 321 72 291446 6968 1.2 322 73 288921 7151 1.2 323 77 308353 7588 1.2 324 78 320760 7665 1.2 325 79 337087 8127 1.3 ------------------------------------------------------ ------------------------------------------------------------------------------- ORBIT REPEATABILITY FROM A 7-DAY FIT THROUGH DAILY ORBIT SOLUTIONS (CM) ------------------------------------------------------------------------------- 103E104E106E109 110 111 113 115 116 117 118 120 122 ------------------------------------------------------------------------------- 319 13 6 9 17 13 18 8 11 22 6 7 5 7 320 12 7 6 15 17 13 4 7 7 4 4 8 4 321 8 4 3 8 15 12 18 5 9 4 4 4 6 322 10 8 11 8 8 14 13 10 9 9 9 8 9 323 10 9 6 7 15 7 6 9 13 6 7 6 5 324 10 7 8 10 12 9 19 6 11 6 10 8 4 325 13 11 10 9 10 9 7 12 13 5 5 6 7 ------------------------------------------------------------------------------- ALL 11 8 8 11 13 12 12 9 13 6 7 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. SLR residuals show an RMS of 17 cm. ------------------------------------------------------------------------------- WEEKLY COORDINATE COMPARISON OF 1-DAY (Z1) SOLUTIONS ------------------------------------------------------------------------------- TOTAL NUMBER OF STATIONS: 20 ------------------------------------------------------------------------------- WEEKDAY RESIDUAL RMS IN MM STATION #DAYS 0123456 N E U ------------------------------------------------------------------------------- 3SNA 49918S001 7 PPPPPPP 26 40 61 BIPD 10094M001 7 PPPPPPP 7 6 29 BORG 12205M004 6 P PPPPP 7 7 17 BRUG 13101M005 7 PPPPPPP 6 6 12 DLRA 14208M002 6 PPPP PP 7 7 11 GODZ 7 PPPPPPP 2 6 6 HERP 13212M009 5 PPPPP 14 35 57 IRKZ 7 PPPPPPP 6 7 9 KHAB 1 P - - - KR0G 10422M001 7 PPPPPPP 3 4 5 LDS1 13215M001 7 PPPPPPP 6 5 21 LRBA 10093M001 4 P P PP 3 1 6 METZ 10503M005 2 PP 4 4 6 MTKA 21741S002 4 PPPP 9 3 10 OS0G 10402M004 7 PPPPPPP 4 2 4 REYZ 10202M003 2 PP 1 1 5 SL1X 40446S001 7 PPPPPPP 2 6 6 VSLD 13502M008 7 PPPPPPP 6 7 27 YARR 50107M006 5 PPPPP 66 38 71 ZIMZ 14001M005 7 PPPPPPP - - - FIXED ------------------------------------------------------------------------------- # Coordinate Estimates: 104 15 15 27 -------------------------------------------------------------------------------