Generally discussed herein are systems and apparatuses that are configured to and techniques for associating a SIGINT signal with an object ortracklet. According to an example, a technique can include (1) estimating a first set of times, each time of the first set of times can indicate how much time it would take for a respective SIGINT signal of a set of SIGINT signals to travel from a point on a tracklet extracted from video data to a respective collector, (2) estimating a second set of times corresponding to times at which the video data corresponding to the point on the tracklet was gathered, or (3) associating the set of SIGINT signals with a tracklet of the plurality of tracklets based on the first set of times, the second set of times, and a set of ToAs of SIGINT signals at the plurality of collectors.