BBC reports:
Three missiles hit north-west of Irbil - Iraqi TV
Two Iranian missiles landed in the village of Sidan, in Irbil province, and a third hit the Bardah Rashsh district in neighbouring Dohuk province, Iraqi state TV reported.
Sidan is about 16km (10 miles) north-west of the city of Irbil, while Bardah Rashsh is 47km (29 miles) to the north-west.
Iraq's military said five missiles were fired towards the Irbil base, where US-led coalition forces are deployed
If Irbil was the airfield targetted, how come the missiles missed by 10 and 29 miles? That would explain why they weren't intercepted. It will be interesting to see the impact points at Al-Asad and may give a better clue as to Iranian capability/intel/intent.