Calculate specific relative angular momentum of the orbit by using flight path angle calculator online.
The flight path angle is the angle between the orbiting body's velocity vector (the vector tangent to the instantaneous orbit) and the local horizontal. Under standard assumptions of the conservation of angular momentum the flight path angle ฯ satisfies the equation:
h = r ยท v ยท cos ฯ
Formula:
h = r ยท v ยท cos ฯ
where,r = the radial distance of the orbiting body from the central body
v = the orbital speed of the orbiting body
ฯ = the flight path angle
h = the specific relative angular momentum of the orbit