Subject: [IGEXMail-0434] Wk 1015 CODE IGEX Analysis Report
From: [email-masked] (D. Ineichen)
Date: 09 Aug 1999 14:38:56

Sender: [email-masked]
Precedence: bulk

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IGEX Electronic Mail    09-Aug-1999 14:38:56                   Message No 0434
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Author: [email-masked] (D. Ineichen)
Subject: Wk 1015 CODE IGEX Analysis Report

Author: M. Rothacher
 
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CODE IGEX REPORT GPS WEEK 1015 (DAYS 171-177, DATES 20-06-99 - 26-06-99)
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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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COX1015N.EPH   GLONASS/GPS DAILY SATELLITE EPHEMERIDES, SP3 FORMAT (N=0..6)    
COX10157.SUM   THIS TEXT FILE                                                  
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------------------------------------------------------                         
FIVE DAY SOLUTION STATISTICS:                                                  
------------------------------------------------------                         
MIDDLE DAY  FILES  OBSERVATIONS   PARAMETERS  RMS (MM)                         
------------------------------------------------------                         
171          96    257069          9289        1.3
172          96    252045          9234        1.4
173          95    247623          9172        1.3
174          93    254534          9337        1.3
175          89    246163          9178        1.3
176          86    234051          8750        1.3
177          84    229813          8370        1.3
------------------------------------------------------                         

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 ORBIT REPEATABILITY FROM A 7-DAY FIT THROUGH DAILY ORBIT SOLUTIONS (CM)
 -------------------------------------------------------------------------------
     101 103 104 106 107 108 109 110 111 113 115 116 117E120E122E
 -------------------------------------------------------------------------------
 171   9   5   8  17   6  11  26  17  13  14  --  18  11   6  10
 172   8   5   6   8   8  11  17  17   7   8  --  24   6   4  11
 173   7   6   7  17   7  19   8  16   9   9  --  18   8   5   8
 174   8   4   6   7   6  13  15  11   6  12  --  22   5   7  10
 175   8   3   7   8   4  12  12  13   6  17  --  20   6   8   9
 176   8   8   5   7   3   5  14  14   7  18  16  18   7  10  13
 177   8   6   4  10   7  10  15  27   8   7  16  24   9  11   5
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 ALL   8   6   6  12   6  12  16  17   8  13  16  21   8   8  10
 -------------------------------------------------------------------------------
 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  PPP PPP    69    67    86
 BIPD 10094M001     4  PPPP        5    10    26
 BORG 12205M004     7  PPPPPPP     2     6    24
 BRUG 13101M005     7  PPPPPPP     3     2    13
 DLFT 13502M006     7  PPPPPPP     1     1     5
 GODZ               7  PPPPPPP     -     -     -   FIXED
 HERP 13212M009     7  PPPPPPP    13    27    54
 KHAB               7  PPPPPPP     3    12    10
 KR0G 10422M001     7  PPPPPPP     -     -     -   FIXED
 LDS1 13215M001     5  PPPPP       2     6    18
 LINR 50124M001     6  PPPPPP     22    39    42
 MDVZ               2       PP     0     1     4
 MTKA 21741S002     7  PPPPPPP     5    18     9
 NPLC 13234M001     7  PPPPPPP    12    21    54
 OS0G 10402M004     7  PPPPPPP     -     -     -   FIXED
 REYZ 10202M003     7  PPPPPPP     3     4    10
 SUNM 50143M001     7  PPPPPPP     -     -     -   FIXED
 THU2 43001M002     6  PPPPPP      4     3     7
 VSLD 13502M008     7  PPPPPPP     3     3    15
 WTZZ 14201M014     2  PP          0     2     3
 ZIMJ 14001M006     7  PPPPPPP     2     2     5
 ZIMZ 14001M005     7  PPPPPPP     -     -     -   FIXED
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