An embodiment of the invention may include a method, computer program product and computer system for managing mobile objects. The embodiment may acquire, by a first acquiring section, measurement data obtained by a first mobile object measuring the first mobile object, using a sensor of the first mobile object. The embodiment may acquire, by a second section, data obtained by a second mobile object detecting the first mobile object in response to a request from outside, using a sensor of the second mobile object. The embodiment may verify, by a verifying section, a validity of the measurement data using the detection data.