Chañar — Tabossi; Province of Entre Ríos

Official source account — 2021 annual report, printed page 5: A luminous oval in a Tabossi night photograph was noticed only during later review. Additional frames showed many similar orbs. CIAE found their brightness and defocus consistent with flash light reflected by nearby dust or insects, rather than distant objects. It classified the explanation Type B because the accidental positions could not be reproduced, while the recurring photographic pattern supported the interpretation. 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.