From: dineiche@ubeclu.unibe.ch (D. Ineichen) Author: M. Rothacher Date: 22 Apr 1999 19:11:29 Subject: [IGEXMail-0305] Wk 0997 CODE IGEX Analysis Report Sender: owner-igexmail@ensg.ign.fr Precedence: bulk ****************************************************************************** IGEX Electronic Mail 22-Apr-1999 19:11:29 Message No 0305 ****************************************************************************** Author: dineiche@ubeclu.unibe.ch (D. Ineichen) Subject: Wk 0997 CODE IGEX Analysis Report Author: M. Rothacher ******************************************************************************* CODE IGEX REPORT GPS WEEK 0997 (DAYS 045-051, DATES 14-02-99 - 20-02-99) ******************************************************************************* 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. - The following sites are constrained to their ITRF96 coordinates: - KR0G 10422M001 (Kiruna, Sweden) - METZ 10503M005 (Metsahovi, Finland) - OS0G 10402M004 (Onsala, Sweden) - YARR 50107M006 (Yaragadee, Australia) - ZIMZ 14001M005 (Zimmerwald, Switzerland) ------------------------------------------------------------------------------- FILES SENT TO GLOBAL DATA CENTERS: ------------------------------------------------------------------------------- COX0997N.EPH GLONASS/GPS DAILY SATELLITE EPHEMERIDES, SP3 FORMAT (N=0..6) COX09977.SUM THIS TEXT FILE ------------------------------------------------------------------------------- ------------------------------------------------------ FIVE DAY SOLUTION STATISTICS: ------------------------------------------------------ MIDDLE DAY FILES OBSERVATIONS PARAMETERS RMS (MM) ------------------------------------------------------ 45 124 588936 12922 1.2 46 125 609041 13222 1.3 47 128 633756 13811 1.3 48 129 636240 14025 1.3 49 131 641272 14080 1.2 50 133 682365 14398 1.2 51 134 670689 14706 1.2 ------------------------------------------------------ ------------------------------------------------------------------------------- ORBIT REPEATABILITY FROM A 7-DAY FIT THROUGH DAILY ORBIT SOLUTIONS (CM) ------------------------------------------------------------------------------- 101 103 104 106 107 108 109 110 111 113 116 117 118 120 122 ------------------------------------------------------------------------------- 45 -- 3 5 10 58 8 10 10 5 4 6 20 7 4 50 46 -- 2 4 10 97 6 5 6 3 5 7 24 6 3 83 47 -- 3 4 7 81 5 7 10 5 4 6 13 8 3 75 48 -- 5 6 8 59 6 6 10 10 4 6 19 9 4 50 49 12 2 5 7 31 3 6 11 4 3 6 16 10 3 30 50 6 4 4 9 39 6 9 13 12 3 10 10 10 4 34 51 8 3 6 11 40 5 10 6 9 2 8 9 11 6 37 ------------------------------------------------------------------------------- ALL 9 3 5 9 62 6 8 10 8 4 7 17 9 4 55 ------------------------------------------------------------------------------- Remarks: - These RMS values may be too optimistic, because we fit the middle days of 5-day arcs with a 7-day arc. - Starting from DOY 049 the orbit for the newly launched GLONASS satellite with slot number 1 were determined. - The 5-day arcs of GLONASS satellites no. 107 and no. 122 were split up between DOY 046 and DOY 047 due to satellite modeling problems. ------------------------------------------------------------------------------- WEEKLY COORDINATE COMPARISON OF 1-DAY (Z1) SOLUTIONS ------------------------------------------------------------------------------- TOTAL NUMBER OF STATIONS: 29 ------------------------------------------------------------------------------- WEEKDAY RESIDUAL RMS IN MM STATION #DAYS 0123456 N E U ------------------------------------------------------------------------------- 3SNA 49918S001 7 PPPPPPP 52 42 120 BIPD 10094M001 4 P PPP 7 5 6 BORG 12205M004 7 PPPPPPP 4 7 21 BRUG 13101M005 4 PP PP 6 8 7 DLRA 14208M002 7 PPPPPPP 4 5 21 HERP 13212M009 7 PPPPPPP 12 37 56 IRKZ 5 PP PP P 3 9 12 KHAB 7 PPPPPPP 6 11 8 KR0G 10422M001 7 PPPPPPP - - - CONSTRAINED LDS1 13215M001 7 PPPPPPP 4 9 21 LINR 7 PPPPPPP 24 85 41 LRBA 10093M001 7 PPPPPPP 4 2 4 MAGD 7 PPPPPPP 8 8 9 MDVZ 7 PPPPPPP 3 3 6 METZ 10503M005 6 PP PPPP - - - CONSTRAINED MTKA 21741S002 4 PPPP 8 9 12 NPLC 13234M001 6 PPP PPP 22 37 67 OS0G 10402M004 7 PPPPPPP - - - CONSTRAINED REUN 97401M003 6 P PPPPP 26 68 32 STRR 50119M002 7 PPPPPPP 26 71 32 SUNM 50143M001 7 PPPPPPP 24 81 60 THU2 43001M002 6 PPPPPP 5 5 8 TSKA 21730M003 7 PPPPPPP 9 11 9 VSLD 13502M008 7 PPPPPPP 4 9 16 WTZZ 14201M014 7 PPPPPPP 4 3 3 YAKT 6 PP PPPP 3 9 7 YARR 50107M006 4 PPPP - - - CONSTRAINED ZIMJ 14001M006 7 PPPPPPP 4 5 6 ZIMZ 14001M005 7 PPPPPPP - - - CONSTRAINED -------------------------------------------------------------------------------