Tool Center

Propellant Mass Calculator

Inputs

kg

Mass of spacecraft before the burn or maneuver.

Mass of spacecraft after the burn or maneuver.

sec

How efficiently an engine/propulsion system can generate thrust.

m/s

Change in velocity for a specific burn.

Outputs

Exhaust Velocity
1765.20 m/s
Propellant Mass
11.55 kg
Spacecraft Final Mass
211.55 kg

Calculation Log

satcatalog: python propellant_mass_calculator.py
  • propellant_mass = 200.0 kg x (1-np.e^-(105.0 m/s / (180.0 s x 9.80665 m/s^2 )))
  • propellant_mass = 11.55 kg
  • final_mass_sc = 200.0 + 11.55
  • final_mass_sc = 211.55