| Acronym | Meaning |
 | APT | Automatic Picture Transmission |
| MTL | Message Transfer Layer |
| RISE | Radiative Inputs From Sun To Earth |
| ASCOT | Atmospheric Studies In Complex Terrain |
| AON | Atmospheric Odd Nitrogen Species Project |
| SOLSTICE | Solar/Stellar Intercomparison Experiment |
| ALEXIS | Array Of Low-energy X-ray Imaging Sensors |
| AFTAC | Air Force Technical Applications Center |
| WWV | Call Letters For The NBS Shortwave Radio Station That Broadcasts Time Signals Only |
| A/C | Air Conditioning |
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