Nobody knows for sure except the US gvmt at the moment - but from what can be seen, radar sites containing equipment for two separate THAAD systems were damaged, with one having a THAAD radar unit that was confirmed to have been damaged - we don't know the extent however, beyond that it's mostly intact in the few images. Likely this means one battery has been knocked out for the foreseeable future, but the second one may still be fully operational or it may be reliant on supplemental radar or it might have been denied the supplemental radar.

We just don't know any details beyond that at most two systems may have been damaged, one of them badly.