Data Providers: Sensor: Pattern Intersection Corners

Sensor: Pattern Intersection Corners

Provides central body intersection information about the corner points on the sensor pattern (currently limited to use with rectangular sensors). If one or more corner points do not project to the surface of the central body, the intersection locations will be reported as having geodetic coordinates of 999 degrees longitude, 99 degrees latitude, and Cartesian coordinates of all zeros.

Type: Fixed data given specified evaluation intervals and step sizes.

Availability: Reports | Graphs | Dynamic Displays | Strip Charts

Name	Dimension	Type	Description
Distance PerpToGroundTrack	DistanceUnit	Real Number	A measure of distance to the intersection point perpendicular to the ground track direction. Points left of the sensor's detic subpoint are considered to have positive distances while points right of the detic subpoint will have negative distances. The distance is computed from the detic subpoint to the projection of the intersection point to a plane through the detic subpoint perpendicular to the ground track at that point.
Altitude	DistanceUnit	Real Number	The altitude value (i.e., magnitude of the relative position vector between the object and its detic subpoint).
CBF X	DistanceUnit	Real Number	The X component of the position vector of the intersection point, expressed in the sensor's central body fixed system.
CBF Y	DistanceUnit	Real Number	The Y component of the position vector of the intersection point, expressed in the sensor's central body fixed system.
Range	DistanceUnit	Real Number	The range (i.e., distance between the primary and secondary object) at the given time.
CBF Z	DistanceUnit	Real Number	The Z component of the position vector of the intersection point, expressed in the sensor's central body fixed system.
Point Index	Unitless	Integer	Integer index of corner point which can be used to correlate corner points at different times.
Distance AlongGroundTrack	DistanceUnit	Real Number	A measure of distance to the intersection point along the ground track direction. Points forward of the sensor's detic subpoint are considered to have positive distances while points behind the detic subpoint will have negative distances. The distance is computed from the detic subpoint to the projection of the intersection point to a plane through the detic subpoint aligned with the ground track at that point.
Point Name	Unitless	Text	Textual name of corner point which is intended to provide a description of the location of the corner point in the sensor pattern. For rectangular sensors, the corner point names are MinusXMinusY, PlusXMinusy, PlusXPlusY and MinusXPlusY where the names indicate the locations of the corner points as viewed in the sensor body frame.
Latitude	LatitudeUnit	Real Number	The detic latitude (i.e., angle between the detic subpoint's surface normal vector and the XY plane.)
Longitude	LongitudeUnit	Real Number	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.
UTM Easting	DistanceUnit	Real Number	The easting value within the UTM zone for the detic subpoint. Available only when the central body is Earth.
UTM Zone	Unitless	Text	The easting 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.
UTM Northing	DistanceUnit	Real Number	The northing value within the UTM zone for the detic subpoint. Available only when the central body is Earth.