A form of continuous differential carrier phase surveying. Operational constraints include starting from a known baseline and tracking a minimum of four satellites at all times when moving between each survey position. One receiver is located at a control point, while another or others are moved between points to be measured. If positions for all epochs during measurement are required, it is known as a continuous kinematic survey. If positions are required only at those points where the movement has stopped is called a Stop and Go kinematic survey. The latter is commonly used for detail or topographic survey.