| Acronym | Meaning |
| SH | Southern Hemisphere |
| AEO | Atomic Energy Organization |
| FIRE | Fast Imaging Ranicon Experiment |
| HPA | High Power Amplifier |
| NRE | Notice Of Revised Estimate |
| NASCO | NAS Committee On Oceanography |
| PCM | Pulse Code Modulation |
| ITM | Ionosphere-Thermosphere-Mesosphere |
| SWARS | Supplementary Aviation Weather Reporting Station |
| LTLOG | Landsat Technical Working Group |