| Acronym | Meaning |
 | ETR | Element Test Review |
| EROS | Earth Resources Observation System |
| GPS-IPW | Global Positioning System-Integrated Precipitable Water |
| AA/EEO | Affirmative Action/equal Employment Opportunity |
| SEE | Solar EUV Experiment |
| IGY | International Geophysical Year |
| ACO/UK | ACO/United Kingdom |
| CAL | Computer-aided Learning |
| RAS | Retrospective Analysis System |
| MWO | Mt. Washington Observatory |
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