Solar Specular Point

The solar specular reflection point is the point on the object's central body surface where the reflected light of the Sun about the surface normal reaches the object.

Light time delay effects are considered on both legs:

From the Sun to the point on the surface.
From the surface to the object itself.

There may be times where the specular point does not exist.

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

Type: Time-varying data.

Availability: Reports | Graphs | Dynamic Displays | Strip Charts

Data Provider Elements

Name	Dimension	Type	Description
Time	Date	Real Number or Text	Time.
Lat	Latitude	Real Number or Text	The detic latitude (i.e., angle between the detic subpoint's surface normal vector and the XY plane.).
Lon	Longitude	Real Number or Text	The detic longitude (i.e., angle from the X-axis locating the projection of the detic subpoint's surface normal vector onto the XY plane.) Longitude increases in the direction found using the right-hand rule about the Z-axis.
X-Fixed	Distance	Real Number	The X component of the position vector of the solar specular point using the object's central body fixed coordinate system.
Y-Fixed	Distance	Real Number	The X component of the position vector of the solar specular point using the object's central body fixed coordinate system.
Z-Fixed	Distance	Real Number	The X component of the position vector of the solar specular point using the object's central body fixed coordinate system.
UTM Zone	Unitless	Text	The UTM Zone character indicator for the detic subpoint. Available only when the central body is Earth.
UTM Easting	Distance	Real Number	The easting value within the UTM zone for the detic subpoint. Available only when the central body is Earth.
UTM Northing	Distance	Real Number	The northing value within the UTM zone for the detic subpoint. Available only when the central body is Earth.
MGRS Cell	Unitless	Text	The MGRS (Military Grid Reference System) code for the cell area containing the detic subpoint. Available only when the central body is Earth.