I've been posting this before, and the replies were "don't know, is not possible AFAIK, debris is generated randomly"
Next went to Scale Plate Green, where the largest deposits of Nividium debris should be, according to Bunny's guide and all others. Found 300 units of Nividium - and that's it. Searched all other mapped deposits, wich were mentioned in the guide. There was 100-300 units of Nividium in each of those sectors.
[added spoiler tags--PJK]