| Acronym | Meaning |
 | CFA | Harvard-Smithsonian Center For Astrophysics |
| AFP | Air Force Program |
| UVPI | Ultraviolet Plume Instrument |
| MMS | Multi-mission Modular Spacecraft |
| GBT | Green Bank Telescope |
| EDO | Extended Duration Orbiter |
| ATM | Apollo Telescope Mount (on Skylab) |
| POCC | Payload/Platform Operations Control Center |
| RFNA | Red Fuming Nitric Acid |
| PPM | Positions And Proper Motions (catalog) |
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