Energy
Under standard assumptions, specific orbital energy of parabolic trajectory is zero, so the orbital energy conservation equation for this trajectory takes form:
where:
- is orbital velocity of orbiting body,
- is radial distance of orbiting body from central body,
- is the standard gravitational parameter.
This is entirely equivalent to the characteristic energy (square of the speed at infinity) being 0:
Read more about this topic: Parabolic Trajectory
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