轨迹

Traditional form:

軌跡

Pinyin (reading):

guǐjì

Definitions:

• locus
• orbit
• trajectory
• track

Characters:

• 轨 - track, rut, path
• 迹 - trace, sign, mark, footprint

Traditional characters:

• 軌 - track, rut, path
• 跡 - trace, sign, mark, footprint