Specific Orbital Energie Rechner — Formel
## Specific Orbital Energy
**epsilon = -G M / (2a)**
- Negative energy = bound (elliptical) orbit
- Zero = parabolic escape
- Positive = hyperbolic trajectory
This quantity is constant along the entire Keplerian orbit.
**epsilon = -G M / (2a)**
- Negative energy = bound (elliptical) orbit
- Zero = parabolic escape
- Positive = hyperbolic trajectory
This quantity is constant along the entire Keplerian orbit.
Lösungsbeispiel
ISS orbit with semi-major axis a = 6 771 km around Earth.
- epsilon = -G M / (2a)
- G M = 3.986e14
- 2a = 1.354e7
- epsilon = -3.986e14 / 1.354e7 ≈ -29.4 MJ/kg