STAR*NET V6 - Circe

Appendix A STAR*NET Tutorial
Take a look at the “Traverse Closures of Unadjusted Observations” section. This
project had data entered in traverse form, and in the Project Options, this report was
selected as one of the sections to include in the listing. For each traverse, courses are
listed with unadjusted bearings (or azimuths) and horizontal distances. When
possible, angular misclosures are shown along with the amount of error per angle.
Linear misclosures are shown based on unadjusted angles “corrected” by the perangle
error. Many governmental agencies want to see this kind of closure analysis.
But it is important to note, however, that these corrections are only for the benefit of
this traverse closure listing. Actual corrections to angles are determined during the
least squares adjustment, and are shown as residuals.
At the end of the listing, review the Error Propagation listing section. You will find
the standard deviation values and the propagated error ellipse information for all
adjusted stations. Also present are relative error ellipses between all station pairs
connected by an observation.
This concludes the quick review of the listing. You’ll note that much information is
shown in this file – it contains just about everything you might want to know about
the results of an adjustment. In some cases, you may only wish to see a subset of this
information, so remember that you can tailor the contents of this file by selecting
which sections to include in the Project Options/Listing File dialog.
14. In the “Project Options/Other Files” dialog reviewed in step 7, an option was set to
create an adjusted coordinates file. Choose Output>Coordinates to view this file.
Any additional files created can also be viewed from this menu.
15. This completes the review of the “Trav2D” example project. We have toured the
main options dialogs, the input data dialog, performed an adjustment, reviewed the
output listing contents in some detail and viewed network plots.
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