Subject: [IGEXMail-0103] Wk 0983 CODE IGEX Analysis Report
From: [email-masked] (D. Ineichen)
Date: 04 Dec 1998 18:19:11

Precedence: bulk

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IGEX Electronic Mail    04-Dec-1998 18:19:11                   Message No 0103
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Author: [email-masked] (D. Ineichen)
Subject: Wk 0983 CODE IGEX Analysis Report

Author: M. Rothacher
 
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CODE IGEX REPORT GPS WEEK 0983 (DAYS 312-318, DATES 08-11-98 - 14-11-98)
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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
 
Remarks: - Starting this week the orbit results stem from the middle days of
           5-day arcs. The internal consistency tests and the comparison with 
           SLR show better RMS values for this solution type compared to the
           results from 3-day arcs submitted in previous weeks.

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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.                               
                                                                               
- At present only the site ZIMZ (Zimmerwald, Switzerland) was constrained to   
  its ITRF96 coordinates.                                                      

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FILES SENT TO GLOBAL DATA CENTERS:                                             
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COX0983N.EPH   GLONASS/GPS DAILY SATELLITE EPHEMERIDES, SP3 FORMAT (N=0..6)    
COX09837.SUM   THIS TEXT FILE                                                  
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------------------------------------------------------                         
THREE DAY SOLUTION STATISTICS:                                                 
------------------------------------------------------                         
MIDDLE DAY  FILES  OBSERVATIONS   PARAMETERS  RMS (MM)                         
------------------------------------------------------                         
312          71    314168          7237        1.4
313          72    292564          7034        1.3
314          75    288600          7051        1.3
315          79    288156          7185        1.3
316          83    308732          7709        1.3
317          81    311903          7646        1.2
318          78    308212          7493        1.2
------------------------------------------------------                         

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 ORBIT REPEATABILITY FROM A 7-DAY FIT THROUGH DAILY ORBIT SOLUTIONS (CM)        
 -------------------------------------------------------------------------------
     103E104E106E109 110 111 113 115 116 117 118 120 122
 -------------------------------------------------------------------------------
 312  33  39  37  56  64  92  56  87  88  19  26  22  23
 313  26  27  40  45  54  71  42  66  65  21  21  18  20
 314  26  31  32  49  68  61  45  60  53  19  23  19  20
 315  35  30  42  49  64  46  50  55  50  20  23  22  24
 316  37  34  38  44  56  70  51  73  79  22  24  19  24
 317  30  26  32  24  63  66  48  63  81  18  21  18  21
 318  50  40  45  42  67  89  57  81  83  23  30  24  29
 -------------------------------------------------------------------------------
 ALL  35  33  38  45  62  73  50  70  73  20  24  20  23
 -------------------------------------------------------------------------------

 -------------------------------------------------------------------------------
 WEEKLY COORDINATE COMPARISON OF 1-DAY (Z1) SOLUTIONS                           
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 TOTAL NUMBER OF STATIONS:    19
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                       WEEKDAY  RESIDUAL RMS IN MM
 STATION        #DAYS  0123456     N     E     U
 -------------------------------------------------------------------------------
 3SNA 49918S001     6   PPP PP    36   117   113
 BIPD 10094M001     5    PPPPP     4    11    11
 BORG 12205M004     6   PPPPPP     5     8    15
 BRUG 13101M005     7  PPPPPPP     6    11    17
 DLRA 14208M002     7  PPPPPPP     6    12    13
 GODZ               5   PP PPP     8    11     8
 HERP 13212M009     5    PPPPP     8    17    37
 IRKZ               5  PPPP  P     5     9    12
 KHAB               7  PPPP  P     7     7    10
 KR0G 10422M001     7  PPPPPPP     3     5     5
 LDS1 13215M001     7  PPPPPPP     5     8    14
 LRBA 10093M001     6  P PPPPP     3     4     5
 METZ 10503M005     5    PPPPP     2     5     3
 MTKA 21741S002     3  PPP         6    12     2
 OS0G 10402M004     6  PP PPPP     2     5     8
 REYZ 10202M003     1  P           -     -     -
 SL1X 40446S001     7  PPPPPPP     7     7    10
 VSLD 13502M008     7  PPPPP P     7    14    29
 ZIMZ 14001M005     7  PPPPPPP     1     1     1
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