Trade Study Simulator

Interactive Trade Study: Mars CubeSat Mission

Mission Scenario: Mars CubeSat

The Goal: You are the lead systems engineer selecting an engine for a small satellite heading to Mars. You have a limited budget, but the trip is long and requires high efficiency.

The Task: Adjust the “Importance Weights” below to decide which engine is best for this specific mission. Does the mission prioritize saving money (Cost) or fuel efficiency (Isp)?

Define Priorities

Drag sliders to set how important each factor is (0 = Irrelevant, 1 = Critical).

Decision Matrix

Option Raw Data (1-10 Scale) Weighted Score
Chemical Monoprop Old reliable, low efficiency. Cost: 8, Isp: 4, TRL: 9 0.0
Hall Effect Thruster High tech, expensive, efficient. Cost: 2, Isp: 10, TRL: 6 0.0
Cold Gas Very cheap, terrible efficiency. Cost: 9, Isp: 2, TRL: 10 0.0
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Analyze: Set “Performance” to 0.9. Notice how the Hall Thruster wins? Now increase “Cost” weight. At what point does the Hall Thruster lose the lead? This crossover point is your sensitivity limit.

📝 Instructor Notes & Attribution

Additional space system student resources can be found at spacetechchronicles.com/student-resources.

This entire module, including the satellite simulation data, is Copyright © 2025 Dr. Daniel Singleton. All rights reserved. Please maintain this attribution when sharing or referencing this visualization.