Every night a random max time interval is chosen, then all night random time intervals below the max are chosen to separate meteor launches. They appear at a random distance from 5 random directions(Above, N, E, S, W) and travel on random paths. Occasionally there will be Meteor Showers with unusual density from a specific direction.
console variables are:
MeteorChance (set once every night, determines max time interval. setting to 1 will have meteors firing at least once every second)
ShowerDir (set to random every night, unless there's a meteor shower in progress. max is 4)
if you want to see a meteor immediately, try the following console command at night:
placeatpc Meteor 1,0,0