Subject: [IGEXMail-0726] Wk 1052 CODE IGEX Analysis Report
From: [email-masked] (D. Ineichen)
Date: 03 Apr 2000 12:59:53

Sender: [email-masked]
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IGEXMail                03-Apr-2000 12:59:53                   Message No 0726
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Author: [email-masked] (D. Ineichen) 
Subject: Wk 1052 CODE IGEX Analysis Report 

Author: CODE AC Team
 
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CODE IGEX REPORT GPS WEEK 1052 (DAYS 065-071, DATES 05-03-00 - 11-03-00)
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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 ITRF97 coordinates:             
                                                                               
      - GODZ 40451M123 (Greenbelt, USA)                                        
      - KR0G 10422M001 (Kiruna, Sweden)                                        
      - 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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COX1052N.EPH   GLONASS/GPS DAILY SATELLITE EPHEMERIDES, SP3 FORMAT (N=0..6)    
COX10527.SUM   THIS TEXT FILE                                                  
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------------------------------------------------------                         
FIVE DAY SOLUTION STATISTICS:                                                  
------------------------------------------------------                         
MIDDLE DAY  FILES  OBSERVATIONS   PARAMETERS  RMS (MM)                         
------------------------------------------------------                         
 65          97    336894          9309        1.1
 66          94    321716          9275        1.1
 67          96    332183          9334        1.1
 68          97    335600          9416        1.1
 69          98    350179          9774        1.2
 70         103    366896          9818        1.2
 71         105    380144          9763        1.1
------------------------------------------------------                         

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 ORBIT REPEATABILITY FROM A 7-DAY FIT THROUGH DAILY ORBIT SOLUTIONS (CM)
 -------------------------------------------------------------------------------
     101 107 108 109E111E113E115E122
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  65   5   6   5   9  12   6   7   6
  66   9   7   7  14   9  --  12   9
  67   7   4   5   5  13   6   5   6
  68   7   7   7   7   5   3   4   6
  69   6   4   3   4   9   2   7   6
  70   5   3   8   6   7   5  10   6
  71   4   5   5   5  11   5  11   8
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 ALL   6   5   6   8  10   5   9   7
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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.                                        

         Modeling problems for satellite 113 (DOY 066). The 7-day arc was 
         splitted at DOY 066.
                                                                                
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 WEEKLY COORDINATE COMPARISON OF 1-DAY (Z1) SOLUTIONS                           
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 TOTAL NUMBER OF STATIONS:    23
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                       WEEKDAY  RESIDUAL RMS IN MM
 STATION        #DAYS  0123456     N     E     U
 -------------------------------------------------------------------------------
 BIPD 10094M001     7  PPPPPPP    20    17    58
 BORG 12205M004     6  PP PPPP     4    12    14
 BRUG 13101M005     5   PPPPP      7    12    13
 CRAR 66001M004     6  P PPPPP    16    16    11
 DLFT 13502M006     5  PP  PPP     2     3     5
 GATR               3  P    PP     1     5     2
 GODZ 40451M123     7  PPPPPPP     -     -     -   CONSTRAINED
 GOPE 11502M002     7  PPPPPPP     2     2     5
 GRAB 11001M004     7  PPPPPPP     2     3     7
 KR0G 10422M001     7  PPPPPPP     -     -     -   CONSTRAINED
 LHAZ 21613M002     3  PP  P      15    39    33
 MTBG 11030M001     7  PPPPPPP     2     4     4
 MTKA 21741S002     5    PPPPP     6    10    12
 NPLC 13234M001     7  PPPPPPP    12    21    34
 OS0G 10402M004     7  PPPPPPP     -     -     -   CONSTRAINED
 REYZ 10202M003     7  PPPPPPP     3     2     5
 THU2 43001M002     7  PPPPPPP     4     5     4
 TSKA 21730M003     6  P PPPPP    11     8    12
 VSLD 13502M008     6  PP PPPP     2     3    19
 WTZZ 14201M014     7  PPPPPPP     2     2     4
 YARR 50107M006     7  PPPPPPP     -     -     -   CONSTRAINED
 ZIMJ 14001M006     7  PPPPPPP     1     1     5
 ZIMZ 14001M005     7  PPPPPPP     -     -     -   CONSTRAINED
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