There's also no possibility that a Geran would be able to engage an A-10. It doesn't have a RADAR, it is much slower and less manoeuvrable.

radar is not required for A2A missiles with infrared seekers, like the R60

Well, bijowo1676, you need a RADAR to find the target before you shoot at it. An IRST can be used, or an off board track, but that is a an expensive and limited capability technique, and usually used to augment a RADAR, not replace it. The missile IR seeker has a narrow FOV.