Tag Archives: ALTA/NSPS Standards

Equations 1-5, Charles Ghiliani, Error Ellipses, xyHt July 2017

Error Ellipses

Part 2: Components and Increasing Probability In the previous article (April 2017) I discuss the correlation of the coordinate values for a station and how an error ellipse is used to determine the direction of the largest error at a station. In this article I review the components of an error ellipse, the process that...