Korriban, originally known as Pesegam during the reign of Xim, was the sole planet in the Horuset system, located across the galaxy from Koros Major. It was the original homeworld of the Sith species and a sacred planet for the Sith Order, housing the tombs for many ancient and powerful Dark Lords of the Sith, and containing tremendous dark side power.
Read all about Korriban here, and check out the datacron locations below:
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15 – [Endurance +2] X: 153 Y: 81 Right next to the shuttle that takes you off world, on a metal platform.
16 – [Willpower +2] X:529 Y:65 You’ll see this one from the air if you take the taxi from the Academy. Simply follow the path around the Wilds area and you’ll eventually get to it.
17 – [Red Matrix Shard] X: -54 Y:378 From the shuttle, head West towards the temple. Hang a left (south) into the Tomb area on the way, and exit to the SE. Head right (SW) once you get outside, it’s behind a wall. In an Elite area.