Astral perception / assensing:
INT 6 + Assensing 4 - Stun 1 = 6 hits
Five 6s, that's some style. Not sure if there are any modifiers except for my stun damage.
There aren't rules for it, but in my opinion Astral Vision ignores normal Light conditions, using Astral light instead, and shifts Visibility one row up, same as Ultrasound.
The astral light here is well illuminated by the Gaeasphere, so that counts as Full Light, and there's no Astral Visibility issues, so you're only dealing with Visibility from the Snow. Medium Snow moves up one row, to -1. So you're at 5 hits outside the vehicle. If you rolled that after entering the vehicle, you get the full 6. Either way, that's the entire Assensing table.
So, here's the real question: Are you just looking around outside, or did you enter the vehicle?
You don't see any astral forms in the area outside, but you can make out the astral shadow of what looks like a large helicopter in the air behind you clear as day.