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Bi-Elliptic Transfer

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Compare a three-burn bi-elliptic transfer against the two-burn Hohmann transfer for coplanar circular orbits.

km
km
km
km3/s2

Total delta-v

4.0285 km/s

4,028.5 m/s

Transfer time

135.80 h

5.66 days

Hohmann comparison

-17.8 m/s

lower than Hohmann

Transfer ellipses

108,500 km

second a = 157,500 km

Bi-elliptic transfer geometry

Two transfer ellipses meet at a high apoapsis, creating a three-impulse alternative to Hohmann.

17.8 m/s below Hohmann

12,952.1 m/s2775.0 m/s3301.4 m/sfirst ellipse: r1 to rbrb 210,000 kmsecond ellipse: rb to r2r2 105,000 kmtotal burn costΔv 4.0285 km/stotal transfer time135.80 h

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