| Acronym | Meaning |
| TIGCM | Thermosphere-ionosphere General Circulation Model |
| DMSP SPO | DMSP System Program Office |
| MSI | Measurements |
| AIDS | Activity Information Data Systems |
| MASSCOMP | Massachusetts Computer Corporation |
| HERS | Human Ecology Research Service |
| OCE | Division Of Oceanic Sciences |
| MAC | Medium Access Control |
| R | Roentger |
| ASAP | Accelerated Situational Awareness Prototype |