Bin Lagash
I'll try to decode what Bin Lagash is doing.
In order to teleport, he needs to roll Range < Constant + Remote - Size.
"Range" is the distance to the target, in dice. He's teleporting a Snowcat from Range 1, so the task difficulty is 1D.
I think "Constant + Remote" is PSI + Remote, or 9 + 8, or 17.
Size is apparent size, which ought to be the Snowcat's size 3, minus its range, 1, or (3-1)... or perhaps -1 + 3.
I don't know where the +1 mod is coming from...
The -5 is the target range (R=5) to where Lagash teleports the Snowcat.
Ank Lagash
Now what I don't get is how Ank rolls 2D on his stutterport task, when he is touching the rock he's teleporting -- range is 0, which defaults to a 1D task, not 2D, right?