Subject: [IGEXMail-0514] Wk 1021 CODE IGEX Analysis Report
From: [email-masked] (D. Ineichen)
Date: 26 Oct 1999 15:31:00

Sender: [email-masked]
Precedence: bulk

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IGEX Electronic Mail    26-Oct-1999 15:31:00                   Message No 0514
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Author: [email-masked] (D. Ineichen)
Subject: Wk 1021 CODE IGEX Analysis Report

Author: CODE AC Team
 
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CODE IGEX REPORT GPS WEEK 1021 (DAYS 213-219, DATES 01-08-99 - 07-08-99)
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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)                                        
      - 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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COX1021N.EPH   GLONASS/GPS DAILY SATELLITE EPHEMERIDES, SP3 FORMAT (N=0..6)    
COX10217.SUM   THIS TEXT FILE                                                  
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------------------------------------------------------                         
FIVE DAY SOLUTION STATISTICS:                                                  
------------------------------------------------------                         
MIDDLE DAY  FILES  OBSERVATIONS   PARAMETERS  RMS (MM)                         
------------------------------------------------------                         
213          96    347661         10434        1.4
214          92    338375         10045        1.4
215          89    327700          9479        1.4
216          89    320118          9439        1.4
217          90    323291          9420        1.4
218          90    323617          9387        1.4
219          94    336121          9810        1.4
------------------------------------------------------                         

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 ORBIT REPEATABILITY FROM A 7-DAY FIT THROUGH DAILY ORBIT SOLUTIONS (CM)
 -------------------------------------------------------------------------------
     101 104 106 107 108 109 110 111 113 115 116 120 122
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 213   4   3  --   4   4   6   9   9   8  13  12   5   6
 214   5   5  --   4   4   7  14   9   4  12  11   4   6
 215   4   4  --   4   3   8   7   7   4   6   8   5   4
 216   9   4  --   6   4   4  14  10   4   7   7   5   3
 217   5   5  --   7   5   5   9   6   3   7   9   3   2
 218   5   2  42   3   5   3   8   7   6   5   6   2   3
 219   5   3  45   5   3   4   6   6   3   6   6   2   2
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 ALL   5   4  43   5   4   5  10   8   5   9   9   4   4
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 Remark: These RMS values may be too optimistic, because we fit the middle days 
         of 5-day arcs with a 7-day arc.                                        

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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
 -------------------------------------------------------------------------------
 3SNA 49918S001     6  PPPP PP    26    35    53
 BIPD 10094M001     5  PPP  PP     3    14    83
 BRUG 13101M005     7  PPPPPPP     8    10    14
 DLFT 13502M006     7  PPPPPPP     3     3     3
 GATR               3  P    PP     4     5     5
 GODZ               7  PPPPPPP     -     -     -   FIXED
 HERP 13212M009     7  PPPPPPP    19    32    64
 IRKZ               7  PPPPPPP     6    10     7
 KHAB               4    PPPP      3     8     7
 KR0G 10422M001     7  PPPPPPP     -     -     -   FIXED
 LDS1 13215M001     7  PPPPPPP     3     6    19
 MDVZ               7  PPPPPPP     3     4     5
 MTBG 11030M001     1  P           -     -     -
 MTKA 21741S002     7  PPPPPPP     7    13    15
 OS0G 10402M004     7  PPPPPPP     -     -     -   FIXED
 REYZ 10202M003     6  PPPPPP      4     5     8
 SUNM 50143M001     1        P     -     -     -   FIXED
 THU2 43001M002     7  PPPPPPP     3     2     8
 VSLD 13502M008     7  PPPPPPP     6     9    22
 WTZZ 14201M014     7  PPPPPPP     2     1     5
 ZIMJ 14001M006     4  P   PPP     2     3     6
 ZIMZ 14001M005     7  PPPPPPP     -     -     -   FIXED
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