Welcome to Hutta Here you will find 3 datacrons, Aim +2, Blue Matrix Shard and Precence +2.
At the end of this page you will find a video showing where you find them.
Aim +2
The first datacron is located on a ledge and you need to run up a ramp on a huge pipe. You have a Medical Droid next to it.
Blue Matrix Shard
The second datacron is located inside the Sewer Maintenance Tunnels, this is a heroic area so if you are low lever bring some friends. Just before the datacron you have a Champion Boss and a chest. The entrence is displayed on the map below.
Follow the yellow line.
Precens +2
The last datacron is located on a mound you can get to by either running above a pipe or by being skilled at jumpin up a corner of the mound.