| Acronym | Meaning |
| AL | Authorized Leave With Pay |
| SIPI | Scientists' Institute For Public Information |
| TIROS | Television And Infrared Operational Satellite |
| ARS | American Rocket Society |
| METROMEX | Metropolitan Meteorological Experiment |
| P/B | Priority Playback |
| DAMUS | Data Management And User Services |
| ZTD | Zenith Tropospheric Signal Delay |
| SLAPS | St. Louis Air Pollution Study |
| AP | Access Permit |