Go to (718, 1860). There is a large rock with a dirt path just to the right of it. Run around the rock and follow the path past the back through the rocks, past the "Aging Bormu", to the Datacron.

Follow the road south out of Sundari Imperial Outpost to Gorinth Canyon. Head to the secret path at 690, 149 (see map). Follow path to datacron. You may like Covering over 100,000 light years, ...

This one is locked inside of a space chest. First, go under the platforms to the water below Bug Town and find the vendor across the pond at 672, 38 (see map). Buy a Lost Code Cylinder from him, then ...