(-203,-257), (-199,-250), and (-199,-248) are all at the borders of 3 sectors. They are also all not in any sectors (judging by their sector maps):
There are many more points like this along borders (between 2 or more sectors) where there is an odd point outside of the sector. Are these points simply a small oversight where a point got left behind or is there some significance? Do the points count as sectorless space?
I don't believe there is significance, I think this is just an artifact of how we transitioned from old sector maps to new sector maps (which was done by drawing the maps in a tool similar to paint and then doing a flood fill on the map borders).
"Clarr's a big mean jerk and he steals my lunch money and makes me cry."