Foone🏳️‍⚧️ (foone@digipres.club)'s status on Tuesday, 05-Nov-2024 13:09:23 JST

The quick explanation: the Vela Hotel Incident (or Vela Incident) was a 1979 event where a single satellite detected the double-flash of a nuclear explosion in the Indian ocean.
No country officially took credit, but the current consensus is that it was a joint South African-Israeli test.