Also a concern during the cold war - one (likely) comet/meteor impact over South Africa was found by satellites searching for nuclear blasts in the mid-80’s.
People still aren’t really sure if it was a South African nuke blast, an Israeli nuke blast supported by SA, or just an impact event.
Didn’t the former white South African government insiders later admit that the 1977 double-flash WAS one of their atomic tests?
I had always read that the flash you referenced in your post that is speculated to be a possible Israeli nuke test was captured by satellite imagery over the South Indian Ocean, due south of SA?