Ah, in any case, I'd suggest looking for Xor on Manaan cause that's where I found him.
At least it's a guarantee he'll be there if you go outside and come back. Well, sort of...
Ok, I'll stop spamming now.
And, BTW, I believe the trigger hotspots are outside the Ebon Hawk in the Jedi Enclave, on Korriban, and on Tatooine, a little way down the path on Manaan (next to the Merchant Selkath), and I'm not sure where it is on Kashyyyk since I've never met anyone there.