| Acronym | Meaning |
 | HP | Hewlett-Packard |
 | PA | Payload Accommodations |
 | FO | Orbital Frequency |
 | MDDS | Maintenance Decision Support System |
 | USGS | United States Geological Survey |
 | MLI | Multiple Layer Insulation |
 | DCE | Distributed Computing Environment |
 | D/RADEX | Digital Radar Experiment |
 | HPCS | High-performance Computing Section |
 | LTV | Ling-Temco-Vaught Inc. |