[IGSMAIL-4758]: Tables/garphics of the Weekly IGS SINEX Combination

"Ferland, Rémi" RFerland at NRCan.gc.ca
Fri Dec 12 14:00:41 PST 2003


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IGS Electronic Mail      12 Dec 14:01:44 PST 2003      Message Number 4758
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Author: R. Ferland

Dear colleagues,

	Following some requests, the content of the 
weekly SINEX combination summary reports is now available in
a more "user/computer" friendly format.
	The content of the weekly SINEX Combination was reformatted.
All the weekly SINEX Combination reports that were originally sent
to CDDIS have been included, going back to GPS week 0999 (99/02/28),
when the first combination of the "pilot phase" was submitted.
The pilot phase was included for completeness. The tables/graphics
will be updated when weekly combinations become available.
Some processing (e.g.: transformations) may be included later on.
Note that the combinations were not official until GPS week 1050
(00/02/20).  Some plots (*.ps, *.jpg) were also included for
convenience.  Those will be included in WEB pages being prepared
by M. Bourassa and will be available shortly.

	The reformatted files can be found in:

ftp     macs.geod.nrcan.gc.ca
cd      /pub/requests/sinex/sum

The table files name & contents is divided by section #:
	Section   Contents
	=======   ========
        5-1       Variance Factor
        5-2-1     Station coordinates residuals statistics w.r.t.
                  reference frame
        5-2-2     Station coordinates residuals statistics w.r.t.
                  IGS weekly combination
        5-2-3     Station coordinates residuals statistics w.r.t.
                  IGS cumulative combination
        5-3-1     Estimated transformation parameters from each solution
                  to the epoch IGS realization of ITRF.
        5-3-2     Estimated transformation parameters sigmas from each
                  solution to the epoch IGS realization of ITRF.
        5-4       Apparent Geocenter estimate and formal std.
        5-5-1     Earth Rotation Parameters (ERP) weighted average
                  residuals w.r.t. the IGS weekly combination.
        5-5-2     Earth Rotation Parameters (ERP) residuals std.
                  w.r.t. the IGS weekly combination.

and by solution name (when appropriate):
        cod emr esa gfz jpl ngs sio mit ncl igs.

The following naming convention is used for the generated table files:

	Sect_Soln.sum
        Where:
              Sect   = Section/subsection #
              Soln   = AC & GNAAC etc solution name.
The columns in the files are identified along fith the units
(when applicable).

For example, an extract of the table file for section 5-1 and solution
"cod" is:

Beginning-------------------------------------
5-1)      AC (Variance Factor)^0.5 estimates:
==================================================


               Solution       |# sta| #RF |    Apriori(SF)|Aposteriori(SF)|
Final(SF)|
 
---------------|-----|-----|---------------|---------------|---------------|
igs99P0999.sum cod            | 120 |  38 |        27.235 |         0.999 |
27.198 |
igs99P1000.sum cod            | 115 |  36 |        26.223 |         1.002 |
26.277 |
igs99P1001.sum cod            | 120 |  37 |        25.385 |         0.998 |
25.344 |
igs99P1002.sum cod            | 119 |  39 |        24.425 |         1.016 |
24.807 |
igs99P1003.sum cod            | 116 |  38 |        26.442 |         0.999 |
26.413 |
..............
..............
..............
igs03P1242.sum cod            | 167 |  37 |        27.067 |         1.000 |
27.081 |
igs03P1243.sum cod            | 161 |  36 |        26.800 |         1.001 |
26.840 |
igs03P1244.sum cod            | 165 |  38 |        27.325 |         1.001 |
27.345 |
igs03P1245.sum cod            | 161 |  36 |        28.299 |         1.001 |
28.329 |
 
---------------|-----|-----|---------------|---------------|---------------|
End-------------------------------------------

The tabular information is also available in graphical form. 
The graphics are available in postscript (*.ps) and the "jpg" formats.
They are grouped by section# and by column *.
Within each section, a plots is available for the time series for each
column.

The following naming convention is used for the generated graphics files:

	Sect_Coln.sum
        Where:
              Sect   = Section/subsection # (See above)
              Coln   = column name as identified below.
For each section in the "Coln" extension for the plotted column


5) Results:
===========

5-1)      AC (Variance Factor)^0.5 estimates:
=============================================
Solution       |# sta| #RF |    Apriori(SF)|Aposteriori(SF)|      Final(SF)|
---------------|-----|-----|---------------|---------------|---------------|
Coln            Nsta  N_RF       I_sf            __sf            O_sf
                ====  ====       ====            ====            ====

5-2)      Solution Residuals weighted Average & STD :
=====================================================

5-2-1)    With respect to the IGS00 stations:
=============================================

Solution       |  Weighted Average (mm)    |          STD (mm)         |
               |      N        E        U  |      N        E        U  |
---------------|---------------------------|---------------------------|
Coln       N_RF     NWAv     EWAv      UWAv     NWSt      EWSt    UWSt
           ====     ====     ====      ====     ====      ====    ====

5-2-2)    With respect to the Weekly Combination:
=================================================

Solution       |  Weighted Average (mm)    |          STD (mm)         |
               |      N        E        U  |      N        E        U  |
---------------|---------------------------|---------------------------|
Coln       Nsta     NWAv     EWAv      UWAv     NWSt      EWSt    UWSt
           ====     ====     ====      ====     ====      ====    ====

5-2-3)    With respect to the Cumulative Combination:
=====================================================

Solution       |  Weighted Average (mm)    |          STD (mm)         |
               |      N        E        U  |      N        E        U  |
---------------|---------------------------|---------------------------|
Coln       Nsta     NWAv     EWAv      UWAv     NWSt      EWSt    UWSt
           ====     ====     ====      ====     ====      ====    ====

5-3)      7-Parameters Transformation: AC ----> IGS01P37_RS54.snx
=================================================================

5-3-1)    Estimates : 
=====================

Solution       |    R X      R Y      R Z      T X      T Y      T Z
SCL  |
               |   (mas)    (mas)    (mas)     (mm)     (mm)     (mm)
(ppb) |
---------------|------------------------------------------------------------
---|
Coln               RXes     RYes     RZes      TXes     TYes     TZes
SCes
                   ====     ====     ====      ====     ====     ====
====

5-3-2)    STD : 
===============

Solution       |    R X      R Y      R Z      T X      T Y      T Z
SCL  |
               |   (mas)    (mas)    (mas)     (mm)     (mm)     (mm)
(ppb) |
---------------|------------------------------------------------------------
---|
Coln               RXst     RYst     RZst      TXst     TYst     TZst
SCst
                   ====     ====     ====      ====     ====     ====
====

5-4)      Geocenter:
====================

               |      X        Y        Z  |    s X      s Y      s Z  |
               |    (mm)     (mm)     (mm) |    (mm)     (mm)     (mm) |
---------------|---------------------------|---------------------------|
Coln                GXes     GYes     GZes      GXst     GYst     GZst
                    ====     ====     ====      ====     ====     ====

5-5)      ERP Residuals Weighted Average & STD :
================================================

5-5-1)    Weighted Average :
============================

Solution       |      UT       LOD       XPO      XPOR       YPO      YPOR
|
               |      us        us    .01mas    .01ma/d   .01mas    .01ma/d
|
---------------|------------------------------------------------------------
|
Coln                          LOav     XPav      XRav      YPav      YRav
                              ====     ====      ====      ====      ====

5-5-2)    STD :
===============

Solution       |      UT       LOD       XPO      XPOR       YPO      YPOR
|
               |      us        us    .01mas    .01ma/d   .01mas    .01ma/d
|
---------------|------------------------------------------------------------
|
Coln                          LOst     XPst      XRst      YPst      YRst
                              ====     ====      ====      ====      ====


If you have any questions/comments/concerns,
do not hesitate to contact me.

Season's Greetings,
Remi,


Rémi Ferland
rferland at NRCan.gc.ca, 613-995-4002,  fascimile/télécopieur 613-995-3215
Natural Resources Canada, 456-615 Booth Street, Ottawa, Ontario K1A 0E9
Ressources naturelles Canada, 456-615 rue Booth, Ottawa, Ontario K1A 0E9
Government of Canada / Gouvernement du Canada



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