I still think the image from Frontier should be look into.
The way the ruins is set out looks like a planet with an orbiting moon. Moon is mentioned a few times in the data results. Plus, if you go to 56 -107 on the moon orbiting this planet, you will see what the image from Frontier looks like:
Mountains with planet in backdrop, Galaxy arm visible at certain points, planet and moon same color... all adds up to me. Since the community found this site from the trailer, why can that image not also be a clue?
The image of the original site also looks a 2D pointer, pointing at the orbiting moon, and then from the moon back to the planet.
Might check this out later again, but when i checked the moon yesterday I didn't have the time to have a good look
*Cough*