| Acronym | Meaning |
 | IGY | International Geophysical Year |
| ACS | Account Control System |
| JERS-1 | Japanese Earth Resources Sensing Satellite 1 |
| AMSOC | American Miscellaneous Society |
| ELVD | Every Launch Vehicle Directorate |
| SG&A | Sales |
| ETCO | External Tanks Corporation |
| UWIS | University Of Wisconsin At Green Bay |
| HTO | Tritiated Water |
| ECN | Energy Research Foundation |
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