| Acronym | Meaning |
 | WAS | Whole Air Sampler |
| TOSS | Tiros Operational Satellite System |
| SSU | Stratospheric Sounding Unit |
| IOP | Intensive Observation Period |
| RISC | Reduced Instruction Set Computer |
| HOS | Hydrocarbon Oxidation Studies |
| EDC | EROS Data Center |
| ASCE | American Society Of Civil Engineers |
| MMD | Mass Median Diameter |
| FPD | Flight Projects Directorate |
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