READCC: input the adjustment options

This program shows the default options for the adjustment and the user may change options as presented

These are the options and the ties to the adjsutment summary file

Adjustment options

• Enter title for adjustment
  Adjustment title is stored in the adjustment summary file and printed at the top of each page of output

 
---List options---
 
[1] Input image                   no       
[2] Station interconnection list  no       
[3] Observation equation report   no       
[4] Adjusted parameter report     no       
[5] Maximum page length                    58
   Accept default [C/R]

1. Input image
   Print each input record to the listing file eg. GHOST.LIS
2. Station interconnection list
   Summarize the direct connectections to each station
3. Observation equation report
   Itemize each observation equation to the listing file
4. Adjusted parameter report
   Itemize each parameter and its correction to the listinf file
5. Maximum page length
   used to determine the numbe of lines to print per page

The user can accept the options as shown or change options 1-4 by entering the number opposite. For number 5 enter a new number of lines

 
--- List differences greater than --
 
[1] Max. expected direction difference     10.00 Secs
[2] Max. expected distance  difference     10.00 PPM
[3] Max. expected azimuth   difference     10.00 Secs
[4] Max. expected elev.dif. difference      1.00 Meters
[5] Max. expected position  difference     10.00 Meters
[6] Max. expected pos.diff. difference     10.00 Meters
    Accept defaults    [c/r]

These options can be used to alter the size of the difference between the observations as input and as computed from the input coordinates. If the coordinates and observations are very accurate you may wish to lowerthe values, however if the observations are not as accurate or the coordinates are no too accurate you may wish to make the defaults higher.

 Select ellipsoid    [S]  [NAD27  s 1]
 Default (NAPD80)   [CR]  [NAD83]
 Define ellipsoid    [D]
 List ellipsoids     [L]
 Help                [H]
 Quit                [Q]
 
   14 NAD83 (WGS84)        6378137.0000 6356752.3142

• Select ellipsoid
  There are 14 ellipsoids defined in the program.
• Default (NAPD80)
  The default chosen is number 14 WGS84
• Define ellipsoid
  The user can define another ellipsoid
• List Ellipsoids
  Lists the 14 defined ellipsoids
• Help
  A help menu is included

 
---Adjustment options ---
 
[1] No of iterations      1
[2] Minimization option Bankers   
[3] Adjustment option   Standard  
[4] Use input elevation Adjusted  
[5] Convergence limit      0.00000
[6] RHS limit            600.00000
[7] Non Centrality         4.51000
 
  Accept options   [C/R]
  

1. No of iterations
   The maximum number of times the coordinate reduction will be repeated
2. Minimization option
   Bankers - minimum profile
   Cuthill - Minimum band
   None - Full matrix
3. Adjustment option
   Standard - Reduction, back susbstitution and inverse
   design - reduction and inversion
   Partial - reduction to a predefined unknown
4. Use input elevation
   The distance reductions require an elevation at each end. If they are all adjusted or none adjusted then there is not a problem, however if some are adjusted and some not there may be significant differences to cause problems in the adjustment of distances
5. Convergence limit
   The adjustment can be stopped when the maximum correction is less than this value
6. RHS limit
   The observation equations will be listed to the listing file if the Right Hand Side exceeds this limit
7. NonCentrality
   Used in the computation of the reliabiltiy terms