Sphere of Influence
Calculate Laplace sphere of influence for patched-conic mission design.
Sphere of influence
924,632 km
Laplace radius
Mass ratio
3.0034e-6
body / primary
Patched-conic boundary
The sphere of influence marks where mission design switches from the primary-centered conic to the body-centered conic.
924,632 km SOI
SOI radius
924,632 km
Laplace patched-conic radius
Orbit size
149,597,871 km
secondary body's heliocentric semi-major axis
SOI / orbit
0.618%
boundary size relative to the orbit radius
Mass ratio
3.0034e-6
secondary mass / primary mass
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