I've always been amused when I see an Asatru decide to take a fake viking-esque sounding name.
First off; Asatru is not 'The viking religion', it's been around for thousands of years and the viking age was a thousand years ago.
Second off; Part of this idea comes from Wicca, where it's long been a standing tradition to create a "craft-name" for oneself.
Without veering too far off-topic, I'd like to say this:
We have plenty or rituals of our own, there is no need to "borrow" parts of someone elses religion.
Some religions borrow things from other religions on an almost daily basis, but Asatru is not one of those religions.
Back on topic.
Asatru is a living religion, stop trying to live in the past, live our values in the modern world and help make it a better place.