I have a list of coördinates that are in X/Y form, and I need them in lat/lon. I tried googling around a bit, and found this method: Converting projected coordinates to lat/lon using Python?
This does seem to work, but I found out a few minutes ago that there are numerous coordinate reference systems, and I have no clue which one my data is in.
I tried a few of these: https://epsg.io/?q=Belgium (because the file I got is from a Belgian company), but the results I got didn't seem right.
Is there any way to figure out what coordinate system was used (except for trying out all 10000 possibilities), with a known combination?
For example, I know X="0511245565" Y="0042422978" should approximately equal to 51.206728, 3.253426 in wsg84.
My appologies if this has been asked before, or if this is a dumb question. I have no background in GIS, or anything related.