Table B.1.
Material composition by debris source type.
| Debris Type | Al | Thermal | Solar | Metals | Other | Paints | C/Kevlar/ | Unident. |
|---|---|---|---|---|---|---|---|---|
| Foils | Panels | Glass | ||||||
| Explosion/Collision | 49% | 9.5% | 9.5% | 9.5% | 9.5% | 7% | 4% | 2% |
| Launch/Mission | 50% | 0% | 0% | 25% | 0% | 25% | 0% | 0% |
| NaK Droplets | 0% | 0% | 0% | 0% | 100% | 0% | 0% | 0% |
| SRM Slag/Dust | 100% | 0% | 0% | 0% | 0% | 0% | 0% | 0% |
| Paint Flakes | 0% | 0% | 0% | 0% | 0% | 100% | 0% | 0% |
| Ejecta | 0% | 0% | 30% | 0% | 0% | 70% | 0% | 0% |
| MLI Fragments | 0% | 100% | 0% | 0% | 0% | 0% | 0% | 0% |
Notes. Values represent fractional cross-sectional area in each material category. Explosion and collision fragments show mixed composition reflecting typical spacecraft construction. Launch/mission objects are dominated by aluminum structural elements and protective coatings. Source-specific debris (NaK droplets, SRM slag, paint flakes, MLI fragments) show single-material composition consistent with their origin.
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