| Acronym | Meaning |
 | IUS | Inertial Upper Stage |
| NGT | NASA Ground Terminal |
| CFPA | Center For Particle Astrophysics (Berkeley) |
| LEM | Lunar Excursion Module |
| FGS | Fine Guidance Sensors |
| DOE | Department Of The Environment |
| UVPI | Ultraviolet Plume Instrument |
| WIMP | Weakly Interacting Massive Particle |
| OAO | Orbiting Astronomical Observatory |
| CFA | Harvard-Smithsonian Center For Astrophysics |
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