Where is the New Jedi Order headquartered at?

After the last NJO novel, where is the New Jedi Order supposed to be headquartered at? Yavin 4?

 

Ossus

 

Are there any satellite bases, like it was in the Old Republic times?

 

Only fifty Jedi in the universe, no need.

 

Any useful things on Yavin 4, like the temples, were destroyed. Hoever, I'm not sure if it was totally Vongformed.

 

Who are the 50 Jedi?

I know:

Luke Skywalker
Jacen Solo
Jaina Solo
Lowbacca
Kyp Durron
Kyle Katarn

And Corran Horn, if he's not dead.

I really need to read the novels again.

 

Answer: Whoever the authors say

Anyone who wasn't killed in the books but is a Jedi is one of them though

 

What about Tahiri, Mara, both of Corran and Mirax's kids as they were among the students training in the NJO, Kam and Tionne Solusar, Cilgahl(spelling please), and Cilgahl's student? I believe they were all still alive at the end of the NJO.