A set of parameters describing the size and shape of the earth and the origin and orientation of the coordinate systems used to map the earth. The measurement is correct to within this maximum expected error. North, and a vertical element expressed by the angle between the horizontal plane and the main axis of the object. Location Representation A location representation is an instantiation of the location of a target. For example, location is expressed with latitude, longitude, and altitude using WGS-84 as reference system.
Velocity is expressed as horizontal and vertical elements.
For example, a location determined by longitude, latitude, and altitude can be represented by degrees, minutes, and seconds with arbitrary decimal fractions. The velocity can be represented in meters per second with arbitrary decimal fractions. Define one default location representation that must be supported by all SLO entities. The format for the default location representation must specify the location in longitude, latitude, and altitude parameters. Support other location representations than the default, including existing schemes and formats widely used in other contexts.