This Datacron unlocks the codex entry - Galactic History 72: The Fall of the Covenant
This datacron holds unheard of power and knowledge collected by an ancient race. You access its power and discover writings which are clearly only one small piece of a massive galactic history:
The Jedi Covenant's attempts to prevent another Sith war had led its members to horrific acts, culminating in the murder of their Padawans. It was too much for the seer Xamar, who left the Covenant to aid Zayne Carrick, the Padawan framed for the crime.
Together they went to confront Krynda Draay, the founder of the Jedi Covenant, and her son Lucien, Carrick's former Master. At the Draay mansion, Carrick discovered the real culprit: Krynda's aide Haazen, a fallen Jedi who had been manipulating the Covenant. As Lucien and Carrick dueled, Haazen used an override in the Republic Navy's weapon systems, intending to destroy the Jedi Temple and the Council.
At the last minute, Lucien overcame his anger, helped Carrick escape, then used Haazen's override to bombard Haazen's position instead. Haazen was killed; Lucien survived, suffering serious injuries. Zayne Carrick's name was cleared, and the Jedi Covenant was finished.
This Datacron is located in the High Secruity Section of Belsavis. To reach this Datacron you will need to follow a path that starts around X -841 , Y -791 (Screenshot 1 & 2). Once you find the path it's a simple just follow it until you reach the Datacron. Nothing tricky about it. The Coordinates for the Datacron are X -502 , Y 767.