[notahacker]

Looks like NASA is to blame for these https://spacemath.gsfc.nasa.gov/weekly/2page23.pdf

I do agree much of the categorisation is baffling (I could nitpick several others). In that respect it's a shame to start off with that lesson when some of the others are so much more relevant to the mission concept, interesting and less debatable

[burkaman]

Thanks, I tried to find that original source but wasn't able to.

[notahacker]

I'm trying to overthink the space power systems exercise now ;-)

Actually very nicely designed, but the pedant in me is screaming "you can't just expect the other 3 solar panels to have the same number of dead zones" and I can't find the source either...