Summary

Drone Iteration Depot sites can be found in HS, LS, NS and WH space. LS, NS and WH space have the better loot.
The sites have to be scanned down. In HS, it's a level 2 datasite, in LS, NS and WH space it's a level 3 datasite. It appears that the level 2 sites can also spawn in LS, maybe other space too.

The site contains one hackable container.