Drag-Sail Deorbit Simulator

Passive drag augmentation is one of the two practical answers to the orbital debris problem the "design-for-demise" side of debris mitigation relies on: instead of active removal missions towing dead satellites down, the spacecraft carries its own deployable sail that widens its cross-section and lets atmospheric drag do the work. This simulator integrates the orbital decay of a satellite under drag in real time — deploy the sail, tune its area against the spacecraft's mass, starting altitude and solar activity, and watch the altitude curve fall toward reentry while the estimated time-to-deorbit is checked against the 25-year post-mission disposal guideline used across the industry.