1. A method of determining sensor detection probabilities of a system of platforms each having one or more respective sensors, the method comprising: determining a set of detection parameters of one or more combinations of platforms and respective sensors of the system of platforms based on a target object, environmental conditions affecting detection of the target object during a first point in time of a timeline of the target object, and capabilities of each of the one or more combinations; deriving a time limit to detect the target object, the time limit being at a second point in time after the first point in time, and based on a threat level of the target object; updating the set of detection parameters based on the second point in time; deriving a time to process a detection of the target object by each of the one or more combinations; deriving an accuracy of the of each of the one or more combinations based on the target object, environmental conditions affecting detection of the target object during the first point in time, and capabilities of each of the one or more combinations; and determining sensor detection probabilities of each sensor of the one or more combinations based on the second point in time, the time to process the detection of the target object, and the accuracy of each of the one or more combinations.