STAR*NET V6 - Circe
STAR*NET V6 - Circe
STAR*NET V6 - Circe
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
Chapter 8 ANALYSIS OF ADJUSTMENT OUTPUT<br />
8.1 Overview<br />
Your objectives in performing a Least Squares Survey Adjustment are to eliminate<br />
blunders from your data, compute the best fit adjustment for all survey observations<br />
simultaneously, and to evaluate the accuracies of the adjusted survey points.<br />
This chapter is designed to help you interpret a <strong>STAR*NET</strong> adjustment output listing.<br />
You can use the output listing to :<br />
Review all of your input field observations<br />
Locate and correct gross blunders in your input data<br />
Analyze the strength of your survey observations<br />
Determine the positional accuracies of computed points<br />
<strong>STAR*NET</strong> stores the output from an adjustment in a file called “PROJECT.LST”,<br />
where “PROJECT” is the name of your current project. You can view this file within the<br />
program by choosing Output>Listing, or by pressing the Listing tool button.<br />
You control the sections that <strong>STAR*NET</strong> places in the output listing file by settings in<br />
the Project Options/Listing dialog. During the data checking phase, you may want to<br />
produce a minimally detailed listing, and then later, turn on additional sections of the<br />
report you now want included.<br />
8.2 Sections of the Output Listing<br />
Summary of Files Used and Options Settings<br />
Listing of Input Data Files (optional)<br />
Adjustment Solution Iterations (optional)<br />
Summary of Unadjusted Input Observations (optional)<br />
Adjustment Statistical Summary<br />
Adjusted Station Information (optional)<br />
Coordinate Changes from Entered Provisionals (optional)<br />
Adjusted Observations and Residuals (optional)<br />
Adjusted Bearings and Horizontal Distances (optional)<br />
Convergence & Grid Factors at each Station (for grid jobs, optional)<br />
Traverse Closures of Unadjusted Observations (optional)<br />
Sideshot Coordinates Computed After Adjustment (optional)<br />
Error Propagation Results (optional)<br />
The remainder of this chapter discusses each section of the output listing file, providing<br />
hints on adjustment analysis. It concludes with a section of procedures that you can<br />
follow to locate and correct errors in your survey data.<br />
117