| Acronym | Meaning |
| GDP | Ground Data Processor |
| K | A Symbol For Planetary Wave Number |
| LT | Local Time |
| AWRE | Atomic Weapon Research Establishment |
| AFSC | Air Force Systems Command |
| IGB | International Geophysical Bulletin |
| EM | Electromagnetic |
| AOO | Anticipated Operational Occurrence |
| CAS | Chemical Abstract Service |
| STP | Solar Terrestrial Physics |