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Propulsion Δv & Deorbit Perigee Calculator

Compute Tsiolkovsky rocket Δv, Hohmann perigee-lowering requirements, and annual atmospheric drag make-up.

Propulsion & Manoeuvre Parameters

Spacecraft wet massg

Propellant massg

Specific impulse I_sps

Initial circular altitudekm

Target disposal perigeekm

Available Tsiolkovsky Δv208.8 m/s

Hohmann perigee-lowering Δv69.0 m/sTo 280 km perigee

Annual drag make-up Δv11.06 m/s/yrModerate solar activity