I presume “SECTORS” is the newer (T4) version and FS_SECTORS is the sunbane version? Do you have a description of which .dat/.ddl files are from which source? 

I do filter out my dataset for Milleu=M1105 and either OTU, Official, Reserve or InReview tags, which should limit the amount of non-canon data in there (aside from Reserve, I suppose). I have to leave InReview in as there is quite a lot InReview. 



On May 24, 2019, at 8:39 AM, Bruce Johnson <xxxxxx@Pharmacy.Arizona.EDU> wrote:

There are two datasets in the file: one is the ancient “Genie” DGP dataset, I believe it’s a copy-ish of the MegaT atlas of the Imperium. I believe I downloaded that from the old Sunbane FTP site back in the day. http://wiki.travellerrpg.com/Sunbane has info.

Those original sector files are also available here: http://dbdev2.pharmacy.arizona.edu/tprogs.html


 The other is the data from the T4 rules set, Marc put that up for downloading.  I’m confident that what I have is correct as to the content of those originals, but I”m not sure about the accuracy of the data to what is now canon.

The Travellermap dataset includes many non-canon sectors which may account for the difference in world count.