Pablo Monzón — Del Viso; Province of Buenos Aires

Official source account — 2021 annual report, printed page 29: Pablo Monzón filmed a slowly moving object that appeared highly reflective in sunlight and grey beneath clouds. CIAE found that it followed a straight, constant course consistent with prevailing winds. The brightness changes and wind agreement supported a helium balloon drifting through varying illumination. The agency classified the conventional explanation Type A, rather than treating the changing colour as evidence of unusual material. The summaries distinguish reported observations from the agency’s proposed explanations. Source Type A/B ratings describe explanatory confidence and are not encounter classes. The map uses an approximate GeoNames locality centroid, not the observation point.