This actually helps me with my current path working. I had not heard of Namma and am wondering if there is a connection between her and Naamah, as both seem connected to the earth. Only way to find out would be to evoke both. But I digress.
As far as Satalos and Tiamat, I am not entirely sure. I have worked with both but have yet to ask them about a relationship between the two, so I can only speculate. They have a similiar vibe yet very different. Yet another thing to add on my never ending list of exploration.
Is satalos a meta god? In my experience, yes and no. On one hand, he does embody the energy of the gate keepers but he also seems to have an underlining current all of his own. They definitely are connected and have a similiar agenda but I will have to dive deeper into his current to come up with better conclusions by working with him more.
That’s my two cents on everything discussed so far. To summarize, there is a lot that I still need to discover on my own, as I certainly do not have all the answers, but I have picked up my own Gnosis on this very interesting journey so far.