Pretty sure this is SeaCat miisle (its so slow and the optical flares are visible) self detonation at the end of its time of flight.
Hi IvanK! Long time no talk to you
yes, I think that its a SeaCat too! On the other forum, people suggested that its a Dagger or Skyhawk kill. I think the detonation is too deprived of fuel-fireball to be a plane kill IMO
Btw, IvanK did you watched the History Channel's "Dogfights" episodes about Mirage action in the middle east? Worth a look for all Mirage fans out there!