Follow Brazil's 1986 radar and fighter encounters through the original report, the intelligence assessment, competing explanations, and the evidence needed to resolve the case.
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Analysis report summary
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Working Assessment
Brazil's 19–20 May 1986 encounters deserve serious investigation. The surviving record documents a military response to unidentified observations. It supports careful study of what crews and controllers reported; it does not independently establish the identity or origin of the phenomena. The historical name is Noite Oficial dos OVNIs, the Official Night of UFOs. Brazil's National Archives confirms that aircraft launched from Santa Cruz and Anápolis with orders to identify the objects. The distinction between an operational event and a resolved scientific explanation is central to this guide. National Archives overview Read the case in three layers: reported observations, the command's interpretation, and...
Source Basis
The principal source is the eight-page Relatório de Ocorrência, dated 2 June 1986, reference BR DFANBSB ARX.0.0.249. Open the original report in the viewer. This Portuguese PDF was obtained directly from the Brazilian National Archives digital repository, with a SIAN catalog entry. It is a supplemental Brazilian archival source stored alongside the guide for reader access; it is not a document from the US Release 2 publication. Page references below count PDF pages, beginning with the covering letter. Additional reading: - Brazilian government retrospective, 2022: public account and disclosure chronology. - COMDABRA's 2004 correspondence and attached report summary: third-party access copy with...
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