Brightness multiplier.
Streak colour (#rrggbb).
Shortest and longest flight, seconds.
Show meteors.
Shortest and longest path across the sky, degrees.
Lowest elevation a meteor's midpoint appears at, degrees.
Shower radiant as [azimuth, elevation] in degrees, or null for a seeded one.
Sporadic meteors per hour of elapsed time (real seconds, not sky time).
Seed for the schedule and paths.
Extra meteors per hour from the shower radiant (0 = no shower; thousands = a meteor storm).
Fraction of the path the glowing trail covers behind the head, 0..1.
Streak width at the head, degrees.
Meteor settings. Plain JSON.