From: dineiche@ubeclu.unibe.ch (D. Ineichen) Author: M. Rothacher Date: 21 Jan 1999 17:08:30 Subject: [IGEXMail-0164] Wk 0988 CODE IGEX Analysis Report Precedence: bulk ****************************************************************************** IGEX Electronic Mail 21-Jan-1999 17:08:30 Message No 0164 ****************************************************************************** Author: dineiche@ubeclu.unibe.ch (D. Ineichen) Subject: Wk 0988 CODE IGEX Analysis Report Author: M. Rothacher ******************************************************************************* CODE IGEX REPORT GPS WEEK 0988 (DAYS 347-353, DATES 13-12-98 - 19-12-98) ******************************************************************************* 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: ------------------------------------------------------------------------------- COX0988N.EPH GLONASS/GPS DAILY SATELLITE EPHEMERIDES, SP3 FORMAT (N=0..6) COX09887.SUM THIS TEXT FILE ------------------------------------------------------------------------------- ------------------------------------------------------ FIVE DAY SOLUTION STATISTICS: ------------------------------------------------------ MIDDLE DAY FILES OBSERVATIONS PARAMETERS RMS (MM) ------------------------------------------------------ 347 100 414570 9849 1.4 348 99 431620 10140 1.4 349 101 450175 10381 1.3 350 102 467526 10217 1.3 351 100 459955 9953 1.3 352 97 459285 9791 1.3 353 95 453096 9409 1.3 ------------------------------------------------------ ------------------------------------------------------------------------------- ORBIT REPEATABILITY FROM A 7-DAY FIT THROUGH DAILY ORBIT SOLUTIONS (CM) ------------------------------------------------------------------------------- 103E104E106E109 110 111 113 116 117E120E122E --------------------------------------------------------------------------- 347 12 12 6 44 34 22 35 27 13 10 7 348 12 8 13 34 46 15 49 30 8 3 7 349 7 13 5 38 41 8 32 48 9 6 5 350 8 9 5 10 34 8 31 29 10 5 5 351 9 9 6 27 52 12 39 19 6 5 4 352 5 10 5 32 43 9 28 49 5 5 5 353 7 8 7 35 32 29 20 54 7 5 9 --------------------------------------------------------------------------- ALL 9 10 7 33 41 16 35 39 9 6 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: 23 ------------------------------------------------------------------------------- WEEKDAY RESIDUAL RMS IN MM STATION #DAYS 0123456 N E U ------------------------------------------------------------------------------- 3SNA 49918S001 7 PPPPPPP 34 25 47 BIPD 10094M001 6 P PPPPP 3 6 26 BORG 12205M004 7 PPPPPPP 5 4 17 BRUG 13101M005 6 PPPPPP 3 6 16 GODZ 7 PPPPPPP 7 10 9 HERP 13212M009 7 PPPPPPP 9 37 66 IRKZ 7 PPPPPPP 7 5 6 KHAB 7 PPPPPPP 8 4 13 KR0G 10422M001 7 PPPPPPP 4 5 8 LDS1 13215M001 6 PPPPP P 5 10 26 LRBA 10093M001 7 PPPPPPP 2 9 7 METZ 10503M005 7 PPPPPPP 4 4 9 MTKA 21741S002 6 PPPPPP 9 4 9 NPLC 13234M001 7 PPPPPPP 51 49 44 OS0G 10402M004 7 PPPPPPP 3 5 6 REYZ 10202M003 7 PPPPPPP 4 3 9 SL1X 40446S001 5 PPPPP 8 12 12 STRR 50119M002 5 PPPPP 36 257 91 *) THU2 43001M002 6 PPPPPP 4 4 13 TSKA 21730M003 5 PPPPP 8 5 5 VSLD 13502M008 7 PPPPPPP 4 5 8 YARR 50107M006 2 PP 64 92 18 *) ZIMZ 14001M005 7 PPPPPPP - - - FIXED ------------------------------------------------------------------------------- *) Very isolated sites -------------------------------------------------------------------------------