Subject: [IGEXMail-0374] Wk 1001 CODE IGEX Analysis Report
From: [email-masked] (D. Ineichen)
Date: 15 Jun 1999 20:06:23

Sender: [email-masked]
Precedence: bulk

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IGEX Electronic Mail    15-Jun-1999 20:06:23                   Message No 0374
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Author: [email-masked] (D. Ineichen)
Subject: Wk 1001 CODE IGEX Analysis Report

Author: M. Rothacher
 
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CODE IGEX REPORT GPS WEEK 1001 (DAYS 073-079, DATES 14-03-99 - 20-03-99)
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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)                                        
      - YARR 50107M006 (Yaragadee, Australia)                                  
      - ZIMZ 14001M005 (Zimmerwald, Switzerland)                               

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FILES SENT TO GLOBAL DATA CENTERS:                                             
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COX1001N.EPH   GLONASS/GPS DAILY SATELLITE EPHEMERIDES, SP3 FORMAT (N=0..6)    
COX10017.SUM   THIS TEXT FILE                                                  
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------------------------------------------------------                         
FIVE DAY SOLUTION STATISTICS:                                                  
------------------------------------------------------                         
MIDDLE DAY  FILES  OBSERVATIONS   PARAMETERS  RMS (MM)                         
------------------------------------------------------                         
 73         129    473773         14022        1.3
 74         130    479022         14125        1.4
 75         129    477215         14239        1.5
 76         129    479882         14103        1.7
 77         132    497666         14304        1.6
 78         129    490554         13861        1.5
 79         126    470305         13136        1.3
------------------------------------------------------                         

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 ORBIT REPEATABILITY FROM A 7-DAY FIT THROUGH DAILY ORBIT SOLUTIONS (CM)
 -------------------------------------------------------------------------------
     101 103 104 106 107 108 109E110E111E113E116E117 120 122
 -------------------------------------------------------------------------------
  73  27   6   7  66  73  32  24  18  48   5  13   5   6  17
  74  36   7   4  82  94  48  25  20  58   7  10   6   7  23
  75  24   6   3  62  70  34  15  16  40   8  13   6   6  18
  76  36   6   4  88  81  37  21  15  53   8  11   6   7  20
  77  19   2   4  67  76  30  30  12  64   5  10   5   6  15
  78  35   7   3  84  96  41  38  21  76   6  11   6   8  20
  79  31   7   5  75  86  42  36  16  74   9  20   7   6  19
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 ALL  30   6   4  75  83  38  28  17  60   7  13   6   6  19
 -------------------------------------------------------------------------------
 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:    30
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                       WEEKDAY  RESIDUAL RMS IN MM
 STATION        #DAYS  0123456     N     E     U
 -------------------------------------------------------------------------------
 3SNA 49918S001     7  PPPPPPP    17    31    56
 BIPD 10094M001     7  PPPPPPP    10     7    19
 BORG 12205M004     7  PPPPPPP     3     6     9
 BRUG 13101M005     7  PPPPPPP     5     7    11
 DLRA 14208M002     7  PPPPPPP     4     3    11
 GATR               7  PPPPPPP    11     5    12
 GODZ               1        P     -     -     -   FIXED
 HERP 13212M009     7  PPPPPPP    18    22    66
 IRKZ               6  PP PPPP     7    10    14
 KHAB               7  PPPPPPP    11    12     9
 KR0G 10422M001     7  PPPPPPP     -     -     -   FIXED
 LDS1 13215M001     7  PPPPPPP     3     5    25
 LINR 50124M001     7  PPPPPPP     6    16    40
 LRBA 10093M001     7  PPPPPPP     5     2     6
 MDOA 40442M008     7  PPPPPPP    11     9    12
 MDVZ               7  PPPPPPP     1     5     5
 METZ 10503M005     7  PPPPPPP     -     -     -   FIXED
 MTKA 21741S002     7  PPPPPPP    12    13    11
 NPLC 13234M001     7  PPPPPPP    34    56    34
 OS0G 10402M004     5  P PPP P     -     -     -   FIXED
 SL1X 40446S001     6  PPPP PP     7     4    11
 STRR 50119M002     5  PPPPP       7    10    22
 SUNM 50143M001     4    PP PP     9     6    28
 THU2 43001M002     2       PP     7     2     5
 TSKA 21730M003     7  PPPPPPP    12    13     9
 VSLD 13502M008     7  PPPPPPP     4     4    11
 WTZZ 14201M014     7  PPPPPPP     4     2     5
 YARR 50107M006     7  PPPPPPP     -     -     -   FIXED
 ZIMJ 14001M006     7  PPPPPPP     6     3     4
 ZIMZ 14001M005     7  PPPPPPP     -     -     -   FIXED
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