| Acronym | Meaning |
| ISS | Information Support Services |
| NOAO | National Optical Astronomy Observatories |
| AMS | Automated Meteorological Station |
| BAC | Budgeted Cost At Completion |
| APC | Ammonium Perchlorate |
| IVVS | Interactive Verification And Visualization System (RTVS) |
| STK | StorageTek |
| INS | Inertial Navigation System |
| DASC | Division Of Advanced Scientific Computing |
| OSIS | Office Of Scientific Information Service |