Datacron Coordinates X -31 Y -102
Upon arriving at Tython, unless you are a new player and have just started the game. Travel to the Jedi Temple, located at X -133 Y -450. From the speeder spawn in location, travel left, with the Temple on your ride side. Across the bridge and up the path. Atop of a mountain will be an opening in a cave, with a glowing Datacron sitting at the entrance.
Jedi Temple, Coordinates X -136 Y -452
Elarian Trail, Coordinates X -54 Y -167
From the location below the cave, head towards it until you see a pile of rocks mounted up on the right side, just underneath the cave entrance, and off to the right. Mount up, use rocket boots or speed run and manoeuvre up the rocks. Collect the green Endurance Datacron +2
Ruins of Kaleth, Coordinates X -355 Y -28
Start the journey to the Mastery Datacron by the big archway, leading into the Ruins of Kaleth. Travel through the archway and up the staircase at X -502 Y 2. There will be another small archway just up from where the staircase ends. Head through here and up the small ramp to the left. Just off to the right will be another ramp, leading up the side of a small mountain. Travel up this ramp and follow the raised ground along to the right. You will spot a glowing Datacron just off to the far right side.
The Ruins of Kaleth
X -502 Y -28
X -649 Y 52
Mastery Datacron +2
X -642 Y -70
Forge Remnants, Coordinates X -87 Y 802
After entering the Forge Remnants, travel up the giant staircase off to the right. This will take you to the upper level of the Remnants. Sticking to the right side of the map you will see a broken down wall, travel through here and across to the far back right side of the area. There will be a small opening in between two rocks, head through here and follow the path up until you reach another area. The Datacron is found in the far right corner of this next section. Just on the grounds next to a pile of skulls will be a glowing white Datacron. This contains a Blue Matrix Shard, this will not give you a stat bonus.
X -87 Y 802
Blue Matrix Shard
X -93 Y 896