Specific Orbital Energy Calculator

Property to Calculate:

Specific orbital energy (ε):

Relative orbital speed of the body (v):

Sum of standard gravitational parameters (μ):

Orbital distance between bodies (r):

How This Is Calculated

$$ \epsilon = \frac{v^2}{2} - \frac{\mu}{r} $$ where:

ε = Specific orbital energy (J/kg)

v = Relative orbital speed of the body (m/s)

μ = Sum of the standard gravitational parameters of the bodies (m³/s²)

r = Orbital distance between bodies (m)

Assumptions

The objects are treated as point masses.
The mass distribution of the objects are spherically symmertric.
The bodies are in stable orbits.
The system is simplied to the interaction between two bodies.

Related Calculators

Orbital Inclination

Orbital Period

Orbital Period for Circular Orbits

Orbital Velocity

Radius from True Anomaly