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[IGEXMail-0531] Wk 1024 CODE IGEX Analysis Report



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IGEX Electronic Mail    05-Nov-1999 12:53:32                   Message No 0531
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Author: dineiche @ ubeclu.unibe.ch (D. Ineichen)
Subject: Wk 1024 CODE IGEX Analysis Report


Author: CODE AC Team
 
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CODE IGEX REPORT GPS WEEK 1024 (DAYS 234-240, DATES 22-08-99 - 28-08-99)
*******************************************************************************
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
 
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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:             
                                                                               
      - GODZ 40451M123 (Greenbelt, USA)                                        
      - KR0G 10422M001 (Kiruna, Sweden)                                        
      - METZ 10503M005 (Metsahovi, Finland)
      - OS0G 10402M004 (Onsala, Sweden)                                        
      - SUNM 50143M001 (Brisbane, Australia)                                   
      - YARR 50107M006 (Yaragadee, Australia)                                  
      - ZIMZ 14001M005 (Zimmerwald, Switzerland)                               
                                                                               
                                                                               
-------------------------------------------------------------------------------
FILES SENT TO GLOBAL DATA CENTERS:                                             
-------------------------------------------------------------------------------
COX1024N.EPH   GLONASS/GPS DAILY SATELLITE EPHEMERIDES, SP3 FORMAT (N=0..6)    
COX10247.SUM   THIS TEXT FILE                                                  
-------------------------------------------------------------------------------
                                                                               
                                                                               
------------------------------------------------------                         
FIVE DAY SOLUTION STATISTICS:                                                  
------------------------------------------------------                         
MIDDLE DAY  FILES  OBSERVATIONS   PARAMETERS  RMS (MM)                         
------------------------------------------------------                         
234          74    294107          7991        1.3
235          74    289124          8003        1.2
236          74    287877          7969        1.3
237          78    308300          8232        1.3
238          80    320120          8667        1.3
239          80    325669          9183        1.3
240          81    325737          9208        1.3
------------------------------------------------------                         


 -------------------------------------------------------------------------------
 ORBIT REPEATABILITY FROM A 7-DAY FIT THROUGH DAILY ORBIT SOLUTIONS (CM)
 -------------------------------------------------------------------------------
     101 104 106 107 108 109E110E111E113E115E116E120 122
 -------------------------------------------------------------------------------
 234   7   6  16   6  16  12  11   9  19   7  15   8   5
 235   5   5  10   6  19  15   9   6  14   8   5  11   4
 236   6   5  17   3  --  12  10   7  11   8   9   6   2
 237   7   6  12   6  --  17   4   7  13   8   6   6   4
 238   7   4  31   5  --  12   9   9  17   8  10   6   5
 239   8   6  34   5  --  14  14   6  12   6   6   5   4
 240  10   6  46   8   8  20  12  10  20  13  12  10   7
 -------------------------------------------------------------------------------
 ALL   7   6  27   6  15  15  11   8  16   9  10   8   5
 -------------------------------------------------------------------------------
 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:    21
 -------------------------------------------------------------------------------
                       WEEKDAY  RESIDUAL RMS IN MM
 STATION        #DAYS  0123456     N     E     U
 -------------------------------------------------------------------------------
 BIPD 10094M001     1        P     -     -     -
 BRUG 13101M005     6  PPPPPP      5     2    20
 DLFT 13502M006     7  PPPPPPP     3     4     6
 GATR               2     PP      18     4     5
 GODZ               2       PP     -     -     -   FIXED
 HERP 13212M009     3    PPP       7    21    58
 IRKZ               5    PPPPP     3    15     7
 KHAB               7  PPPPPPP     7    15    11
 KR0G 10422M001     6   PPPPPP     -     -     -   FIXED
 LINR 50124M001     6  PPPPPP     11    88    26
 MDVZ               7  PPPPPPP     2     3     8
 METZ 10503M005     5    PPPPP     -     -     -   FIXED
 MTBG 11030M001     7  PPPPPPP     2     7    13
 OS0G 10402M004     7  PPPPPPP     -     -     -   FIXED
 SUNM 50143M001     7  PPPPPPP     -     -     -   FIXED
 THU2 43001M002     7  PPPPPPP     7     3     5
 VSLD 13502M008     7  PPPPPPP     4     7    10
 WTZZ 14201M014     3  PP    P     3     6     5
 YARR 50107M006     3    PP P      -     -     -   FIXED
 ZIMJ 14001M006     7  PPPPPPP     3     5     7
 ZIMZ 14001M005     7  PPPPPPP     -     -     -   FIXED
 -------------------------------------------------------------------------------