Case file · Government program
SIOANI (Brazilian Air Force)
The Unidentified Aerial Object Investigation System, set up by the Brazilian Air Force's Fourth Air Zone in São Paulo in 1969 to study UFO reports scientifically.
1969 CE · -23.55, -46.63 · status: official
The account
Its existence became public only when Brazil transferred its military UFO documents to the National Archives in Brasília, a collection that also holds the 1977 Operação Prato files and the 1986 'Official UFO Night' records. According to an academic history it closed in 1972, but Air Force interest continued through later registries.
The sceptical view
Its case bulletins mostly record witness reports and don't establish any anomaly beyond those reports.
Connections in the atlas
- Pirassununga landings
- Air Force receives ufologists, Brasília
- Colares (Operação Prato)
- Varginha 'creature'
- Antônio Vilas-Boas