In celestial mechanics, the argument of latitude () is an angular parameter that defines the position of a body moving along a Kepler orbit. It is the angle between the ascending node and the body.
It is the sum of the more commonly used true anomaly and argument of periapsis.
where is the argument of latitude, the true anomaly, and the argument of periapsis.
- Wakker, K. F. (2007). "Astrodynamics", Delft University of Technology.