Data Providers: Aircraft: Pointing Covariance (Projection)

Aircraft: Pointing Covariance (Projection)

Projection of the equal probability density ellipsoid defined by the pointing covariance matrix onto the plane perpendicular to the mean pointing direction. The data requires position covariance to be defined for the object and/or its target.

Type: Time-varying data

Availability: Reports | Graphs | Dynamic Displays | Strip Charts

Name	Dimension	Type	Description
Time	DateFormat	Real Number	Time.
Sigma Axis-1	AngleUnit	Real Number	Square root of the first diagonal component of the projected covariance matrix.
Sigma Axis-2	AngleUnit	Real Number	Square root of the second diagonal component of the projected covariance matrix.
1/(Inverted Sigma Axis-1)	AngleUnit	Real Number	Square root of the inverse of the first diagonal element of the inverse of the projected covariance matrix.
1/(Inverted Sigma Axis-2)	AngleUnit	Real Number	Square root of the inverse of the second diagonal element of the inverse of the projected covariance matrix.
Correlation 12	Unitless	Real Number	Correlation coefficient of the projected covariance matrix.
Major Sigma Dir Angle	AngleUnit	Real Number	Angle between the major axis of the equal probability density ellipse and the first axis of the projection plane.
Major Sigma	AngleUnit	Real Number	Square root of the maximum eigenvalue of the projected covariance matrix.
Minor Sigma	AngleUnit	Real Number	Square root of the minimum eigenvalue of the projected covariance matrix.
Area	Angle Squared	Real Number	Area of the equal probability density ellipse defined by the projected covariance matrix.
CEP	AngleUnit	Real Number	"Circular error probable" - statistically equivalent circular representation for the elliptical equal probability density contour defined by the projected covariance matrix.