Position data for the area target's
centroid in different element representations computed in the
object's central body fixed coordinate system.
Name |
Dimension |
Type |
Description |
Cartesian-x |
DistanceUnit |
Real Number |
The X component of the center of the ground ellipse
with respect to object's central body fixed coordinate system. |
Cartesian-y |
DistanceUnit |
Real Number |
The Y component of the center of the ground ellipse
with respect to object's central body fixed coordinate system. |
Cartesian-z |
DistanceUnit |
Real Number |
The Z component of the center of the ground ellipse
with respect to object's central body fixed coordinate system. |
Geodetic-Lat |
LatitudeUnit |
Real Number |
The detic latitude of the center of the ground
ellipse. |
Geodetic-Lon |
LongitudeUnit |
Real Number |
The detic longitude of the center of the ground
ellipse. |
Geodetic-Alt |
DistanceUnit |
Real Number |
The detic altitude of the object relative to the
center of the ground ellipse. |
Geocentric-Lat |
LatitudeUnit |
Real Number |
The centric latitude of the detic subpoint (i.e.
angle between the subpoint position vector and the XY plane of the
object's central body fixed axes.) |
Geocentric-Lon |
LongitudeUnit |
Real Number |
The centric longitude of the detic subpoint (i.e.
angle from the X-axis locating the projection of the subpoint
position vector onto the XY plane of the object's central body
fixed axes.) Longitude increases in the direction found using the
right-hand rule about the Z-axis. |
Geocentric-Alt |
DistanceUnit |
Real Number |
The altitude value (i.e., magnitude of the relative
position vector between the object and its detic subpoint). Its
value is the sum of the ground altitude and the height above
ground. |
Spherical-Lat |
LatitudeUnit |
Real Number |
The signed angle measured from the XY plane to the
position vector, where positive angles are used for locations above
the XY plane, and negative for those below. |
Spherical-Lon |
LongitudeUnit |
Real Number |
The signed angle measured from the X axis to the
projection of the position vector into the XY plane. The angle
increases in the direction found by the right hand rule about the Z
axis. |
Spherical-Rad |
DistanceUnit |
Real Number |
The magnitude of the position vector (i.e. the
radius vector). |
Cylindrical-R |
DistanceUnit |
Real Number |
The radius value of the cylindrical coordinate
representation of the position vector, where the cylinder's
symmetry axis is the Z axis. Its value is the magnitude of the
projection of the position vector into the XY plane of the object's
central body fixed axes. |
Cylindrical-Lon |
LongitudeUnit |
Real Number |
The signed angle measured from the X axis to the
projection of the position vector into the XY plane. The angle
increases in the direction found by the right hand rule about the Z
axis. |
Cylindrical-Z |
DistanceUnit |
Real Number |
The Z component of the position vector. |
Alt AGL |
DistanceUnit |
Real Number |
The altitude above ground level. The difference
between the altitude and the terrain altitude. If no terrain is
found at the detic subpoint, then the string "No Terrain" is
returned. |
Ground Alt |
DistanceUnit |
Real Number |
The altitude of the ground. |
Terrain Alt |
DistanceUnit |
Real Number or Text |
The terrain altitude. The altitude of the terrain
located at the detic subpoint's latitude and longitude, measured
from the object's central body surface along the surface normal
through the detic subpoint. If no terrain is found at the detic
subpoint, then the string "No Terrain" is returned. |
Alt MSL |
DistanceUnit |
Real Number |
The altitude above mean sea level. The difference
between the altitude and the height of mean sea level, measured
from the object's central body surface along the surface normal
through the detic subpoint. |
Ground Alt MSL |
DistanceUnit |
Real Number |
The altitude of the ground, expressed with respect
to mean sea level. |
UTM Zone |
Unitless |
Text |
The UTM Zone character indicator for the detic
subpoint. Available only when the central body is Earth. |
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 Northing |
DistanceUnit |
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. |