They are not tracking.They try to follow the target unsuccessfully !
Normally and if the target is low and manually tracked and range less that 7 km ,the system recognize to be be in Fi mode. No need for precise range.
But how the missile knew when to descent over target if no range data?
In this case the missile flies in a predefined path just 3 meters higher from the crosshair of carat and with the proximity fuse already energized,it is expected the target to be hit by the warhead fragments .
