Anybody else still not got them? I'm stuck without those ones (and a few that I missed along the way). Has the site for them been found yet?
In theory, if you can assemble a team of 4 or more, in either open or Private Group, at certain known sites, and take turns scanning all the active obelisks in any given cluster, log off and log back on, one at a time, it may just come to pass that Obelisks that were previously inactive will become active and yield the data you are missing.
I can confirm, beyond doubt, that logging off and logging back on WILL cause Obelisks that were not active to become active at some sites. But I've yet to break the 95 scan mark in two runs.
Of course, I also don't know that many people to assemble a group of 4 or more AND get them to go ruins-hopping either.
I'm also in EST, in the US, and play mostly in the evenings, so most of the player base has gone to bed by the time I get on to play.
But if you happen to be available after 6:00pm EST at some point and want to go ruins-hopping, let me know - I'm always glad to team up and go looking for those elusive 7.