Position Covariance Projection Choose Plane

Projection of the equal probability density ellipsoid defined by the position covariance matrix onto the specified plane. Any plane defined in the Vector Geometry Tool is available for use, including user defined planes. The data requires position covariance to be defined for the object.

Available for these objects: Aircraft, GroundVehicle, LaunchVehicle, Missile, Satellite, Ship

Type: Time-varying data.

Availability: Reports | Graphs | Dynamic Displays | Strip Charts

Pre-data required: '{Scale} {SEPProb} {PlanePath} {PlaneName}' where {PlanePath} is the truncated path of the plane parent.

Data Provider Elements

Name	Dimension	Type	Description
Time	DateFormat	Real Number	Time.
Sigma Axis-1	DistanceUnit	Real Number	Square root of the first diagonal component of the projected covariance matrix.
Sigma Axis-2	DistanceUnit	Real Number	Square root of the second diagonal component of the projected covariance matrix.
Correlation 12	Unitless	Real Number	Correlation coefficient of the projected covariance matrix.
1/(Inverted Sigma Axis-1)	DistanceUnit	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)	DistanceUnit	Real Number	Square root of the inverse of the second diagonal element of the inverse 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	DistanceUnit	Real Number	Square root of the maximum eigenvalue of the projected covariance matrix.
Minor Sigma	DistanceUnit	Real Number	Square root of the minimum eigenvalue of the projected covariance matrix.
Area	Area	Real Number	Model area.
CEP	DistanceUnit	Real Number	"Circular error probable" - statistically equivalent circular representation for the elliptical equal probability density contour defined by the projected covariance matrix.