Of these, I do not know what is TY-1, XX-11, XX-12, LD-3 and LD-2.
LD could refer to Leidian (雷电) . Because SJ-6B was called LD-1 during design phase LD-2 and LD-3 could be follow-on versions.
It was my idea too, but where are they? Of course we can suppose different versions between the four launched SJ-6Bs...
Can XX-11 and XX-12 be Jianbings? Probably yes but I'd like to find confirmations and to re-match Yaogans to Jiangbins...