There are 3 Datacrons available for Empire players on Hutta, the starting planet of Imperial Agents and Bounty Hunters. Read below for detailed explanations, maps and images on how to get them.
Blue Matrix Shard
Codex Entry - Galactic History 3: The Battalions of Zhell
Coordinates: 13, 324
This Datacron is located in the Sewer Maintenance Tunnels. The entrance to the Tunnels can be found at approximately -24, 208. Once, inside you will have to clear the path of mobs and as a low level player you may need some help.
Codex Entry - Galactic History 2: Ancient Civilizations
Coordinates: 649, -108
The Presence Datacron is in the eastern area of The Rust Yards. At 504, -20 you will find a pipe that you need to cross, jump on another pipe and after just a few steps from it's end you'll be able to see the Datacron.
Codex Entry - Galactic History 1: The Architects
Coordinates: -95, 860
The third Datacron is located south of the Evocii Work Camp on a hill. To get there, go around the hill until you find a pipe that allows you to climb. Once you're on top of the hill you should be able to easily spot the Datacron located below at the specified coordinates.