Identify Target Location Error Terms Flashcards
_____ is the closeness with which repeated measurements made under similar conditions are grouped together.
Precision
Error expressed with 90% confidence is known as _____.
Absolute Error
The mathematical model of the earth that helps account for earth’s irregular shape is known as the ______.
Ellipsoid
_____ is divided into 60, 6° longitudinal sections numbered east from the International Date Line and covers from latitude 84° North to latitude 80° South.
Universal Transverse Mercator (UTM)
_____ is the closeness of the best estimated value obtained by measurements to the “True” value of the quantity measured.
Accuracy
The horizontal accuracy of a derived geospatial location with an unstated confidence level of 50% is _____.
Circular Error
The difference between the perceived target coordinate and the true target location is known as _____.
Target Location Error (TLE)
An error caused by the measuring device, operation, or environment is known as a _____.
Systematic Error
A Category two (CAT II) is _____ meters.
7-15
The vertical accuracy of a derived location is known as _____.
Linear Error
The two datums required for every precision coordinate are _____ and _____.
Horizontal, Vertical
The usable (measurable) portion of an ellipsoid that is used as a start point to measure a specific ellipsoid is known as a _____.
Horizontal Datum
_____ measure from the equator (0°) to the North Pole (90° N) and the South Pole (90° S).
Latitude Zones
_____ is the radius of a circle within which half of the rounds fired at a target will impact.
Circular Error Probable
_____ is described by significant digits in the grid coordinate itself.
Precision
Target Location Error Categories must meet the category requirement of _____, _____, and _____.
CE90, LE90, SE90
_____ describes error inherent to the source and weapon system.
Accuracy
Target Location Error is composed of _____ categories used to facilitate communication of targeting accuracy.
Six
_____ is an indicator of the delivery accuracy of a weapon system used as a factor in determining probable damage to a target.
Circular Error Probable
The combined horizontal and vertical accuracies make up _____.
Target Location Error (TLE)
Errors whose degree or significance increase in the course of a series of measurements or connected calculations is known as _____.
Cumulative Error
_____ measure from the Prime Meridian (0°) East and West to 180° near the International Dateline.
Longitude Sections
The two Ellipsoid models are _____ and _____.
Non-earth Centered, Earth Centered
_____ ellipsoid models are created by shaping the ellipsoid to better fit the area being mapped. They are developed by using land-based survey techniques.
Non-Earth Centered
_____ and _____ are the two primary vertical datums used to measure elevation.
Mean Sea Level (MSL), Height Above Ellipsoid (HAE)
_____ ellipsoid models are used to map the entire globe and are developed using space-based satellite systems.
Earth Centered
Gravity variations across the Earths surface are modeled using the _____.
Earth Gravitational Model
