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eng.orbital-delta-v Calculator
Calculates delta-V requirement for orbital manoeuvres using the vis-viva equation, Hohmann transfer, and plane change formulas. The Tsiolkovsky rocket equation converts delta-V budget to propellant mass fraction — small delta-V savings have large impacts on spacecraft mass.
Inputs
Initial Orbit Km
Reference formula or conversion factor shown for context.
Final Orbit Km
Reference formula or conversion factor shown for context.
Planet Radius Km
Distance from centre to edge of a circle. Radius = diameter / 2.
Mu Km3 S2
Reference formula or conversion factor shown for context.
Results
total Δv Hohmann transfer (km/s)
The combined total across all inputs and components.
Δv₁ (LEO burn) km/s
Sample size or count used in the calculation.
Δv₂ (GEO insertion) km/s
Sample size or count used in the calculation.
transfer orbit period (hours)
The result expressed in hours. Divide by 24 to convert to days.
LEO velocity (km/s)
Reference formula or conversion factor shown for context.
GEO velocity (km/s)
Reference formula or conversion factor shown for context.