NASA DC-8 Palmdale Map?

On the following flight, there are two tracks shown - the normal green route, as well as a blue-segmented line.

What is the segmented line?

flightaware.com/live/flight/NASA … /KPMD/KPMD

In reading around some other threads, I see references to planned route versus actual route. I guess that’s what this is all about.

Question answered (I think).

That is correct.

I am glad they put that on there, kinda cool to see an airplane go around a storm than keeping the scheduled route.