hasRadialVelocityMeasurement

Given a predicate that represents a relationship or action between entities, generate a one-sentence description explaining its meaning.  
# Instructions
Focus on describing the relationship, not the entities themselves. 
# Response Format
Begin the description with \' Indicates...\'

Predicate: hasRadialVelocityMeasurement

Indicates that a radial velocity value has been measured for an entity, typically quantifying its motion along the line of sight relative to an observer.