Subject: [IGEXMail-0546] Wk 1026 CODE IGEX Analysis Report
From: [email-masked] (D. Ineichen)
Date: 18 Nov 1999 20:54:56

Sender: [email-masked]
Precedence: bulk

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IGEX Electronic Mail    18-Nov-1999 20:54:56                   Message No 0546
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Author: [email-masked] (D. Ineichen)
Subject: Wk 1026 CODE IGEX Analysis Report

Author: CODE AC Team
 
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CODE IGEX REPORT GPS WEEK 1026 (DAYS 248-254, DATES 05-09-99 - 11-09-99)
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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:                                                           
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- 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)                                   
      - ZIMZ 14001M005 (Zimmerwald, Switzerland)                               

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FILES SENT TO GLOBAL DATA CENTERS:                                             
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COX1026N.EPH   GLONASS/GPS DAILY SATELLITE EPHEMERIDES, SP3 FORMAT (N=0..6)    
COX10267.SUM   THIS TEXT FILE                                                  
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------------------------------------------------------                         
FIVE DAY SOLUTION STATISTICS:                                                  
------------------------------------------------------                         
MIDDLE DAY  FILES  OBSERVATIONS   PARAMETERS  RMS (MM)                         
------------------------------------------------------                         
248          98    415034         10397        1.3
249          98    415993         10321        1.3
250          96    407666         10127        1.3
251          95    397303          9927        1.3
252          93    380866          9597        1.4
253          92    370231          9436        1.3
254          91    360219          9407        1.3
------------------------------------------------------                         

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 ORBIT REPEATABILITY FROM A 7-DAY FIT THROUGH DAILY ORBIT SOLUTIONS (CM)
 -------------------------------------------------------------------------------
     101 106 107 108 109E111E113E115E116E120 122
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 248   4  38  20   8   6   5   9   8  68   5   9
 249   4  45  17   5   7   4   9   4  46   8   7
 250   5  59  28   8   7   5   7   4  55   7  16
 251   6  63  28  11   5   6   9   5  79   8  19
 252   6 194  41  11   5   3   8   8 184   8  17
 253   7 175  50  13   9   5   8  10  --  --  30
 254   8 195  47  15   9   9  13  10 135  --  22
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 ALL   6 129  35  11   7   6   9   7 107   8  19
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 Remarks: - These RMS values may be too optimistic, because we fit the middle 
            days of 5-day arcs with a 7-day arc.
          - The 5-day arcs of GLONASS satellite no. 106 were split up between 
            DOY 251/252 and DOY 252/253 due to satellite modeling problems.
                                                                                
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 WEEKLY COORDINATE COMPARISON OF 1-DAY (Z1) SOLUTIONS                           
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 TOTAL NUMBER OF STATIONS:    22
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                       WEEKDAY  RESIDUAL RMS IN MM
 STATION        #DAYS  0123456     N     E     U
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 BIPD 10094M001     5    PPPPP     4    10    52
 BRUG 13101M005     7  PPPPPPP     2     5    14
 DLFT 13502M006     7  PPPPPPP     1     2     5
 GATR               4  PPPP        2     7    10
 GODZ               6  PPPPP P     -     -     -   FIXED
 HERP 13212M009     2  PP          4    10    25
 IRKZ               7  PPPPPPP     6     6     6
 KHAB               7  PPPPPPP     9     6     5
 KR0G 10422M001     7  PPPPPPP     -     -     -   FIXED
 LINR 50124M001     5  PP  PPP    10    31    13
 MDVZ               7  PPPPPPP     1     2     4
 METZ 10503M005     7  PPPPPPP     -     -     -   FIXED
 MTBG 11030M001     7  PPPPPPP     2     1     5
 MTKA 21741S002     7  PPPPPPP    10     6     3
 OS0G 10402M004     7  PPPPPPP     -     -     -   FIXED
 REYZ 10202M003     6   PPPPPP     4     2     7
 SUNM 50143M001     7  PPPPPPP     -     -     -   FIXED
 THU2 43001M002     7  PPPPPPP     4     6     7
 VSLD 13502M008     7  PPPPPPP     5     8    14
 WTZZ 14201M014     7  PPPPPPP     2     2     4
 ZIMJ 14001M006     7  PPPPPPP     2     3     6
 ZIMZ 14001M005     6  PPPPPP      -     -     -   FIXED
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