Lighting AER Variants | Data Provider Groups | Data Provider Elements

Lighting AER

Angle and range data describing the apparent relative position vector of the Sun.

Data Provider Variant: Low Altitude Vehicle

Available for these objects: Aircraft, GroundVehicle, Ship

Type: Time-varying data.

Availability: Reports | Graphs | Dynamic Displays | Strip Charts

Data Provider Groups

Name	Description
ECIVVLH	Earth centered inertial vehicle velocity local horizontal frame. This frame has the Z axis aligned with the anti-radial direction and the X axis constrained toward the inertial velocity direction. This frame is not restricted to Earth oriented vehicles despite its name.
ECFVVLH	Earth centered fixed vehicle velocity local horizontal frame. This frame has the Z axis aligned with the anti-radial direction and the X axis constrained toward the central body fixed velocity direction. This frame is not restricted to Earth oriented vehicles despite its name.
BodyFixed	Body fixed frame. This frame moves with the vehicle attitude.
LH	Local horizontal frame. This frame has the Z axis aligned with the inward surface normal direction (minus Z is up) and the X axis constrained toward the local north direction.

Data Provider Elements

Name	Dimension	Type	Description
Time	Date	Real Number or Text	Time.
Azimuth	Longitude	Real Number or Text	The angle measured to the projection of the apparent position vector into the X-Y plane from +X in a right handed sense about +Z. The +X direction has an azimuth of zero and +Y has an azimuth of 90 degrees.
Elevation	Angle	Real Number or Text	The angle from the X-Y plane to the apparent position vector, measured positive in the -Z direction except for the BodyFixed frame where it is measured positive in the +Z direction. Values range from -90 degrees at the nadir to +90 degrees at the zenith.
Range	Distance	Real Number	The magnitude of the apparent position of the Sun from the object.
To Nadir Angle	Angle	Real Number or Text	Angle between the apparent sun direction and the nadir direction where nadir is defined as the direction to the center of the central body.