SCU Pattern Recognition Study (Hancock et al. 2023, 590 UAP reports) reaches a finding with extraordinary implications: UAP activity peaked at atomic facilities DURING THEIR CONSTRUCTION PHASE and escalated when each site became OPERATIONAL — but only at the FIRST facilities of each type. Hanford, Oak Ridge, Los Alamos, Sandia, Killeen (the earliest radioactive materials production, weapons assembly, and stockpile sites) all showed elevated UAP activity in a window of 1948-1951. The LATER facilities built after 1952 — Savannah River and Pantex — showed NO comparable elevated activity despite being higher-security. All sites show the same pattern: a dramatic decrease after the 1952 national UAP surge, never repeating those activity levels for the remainder of the 30-year study period. Conclusion: “The initial UAP activity appears time delimited, suggestive of an intelligence-driven survey of atomic weapons development capability.” One technique for identifying atomic facilities from aerial surveys is profiling high power requirements, water supplies, and special construction characteristics — exactly what was visible at Hanford on the Columbia River. The implication: something surveyed each new type of US nuclear facility when it first appeared, catalogued it, then moved on — already having what it needed from the first-generation sites.