Parameter Name

Description

ORG_LNG

The longitude, in degrees, of the origin of the projection.

ORG_LAT

The latitude, in degrees, of the origin of the projection.

MAP_SCL

Used only when defining a coordinate system that is to produce measurements on a scaled paper map. This value is the scale of the map, e.g., 100,000. Normally, this value is set to 1.0.

X_OFF

The false easting to be applied to all X coordinates, usually se­lected to cause all X coordinates within the coordinate system to be positive values of reasonable size. This is the X coordinate of the coordinate system origin.

Y_OFF

The false northing to be applied to all Y coordinates. This is the Y coordinate of the coordinate system origin.