| Acronym | Meaning |
| DM | Document |
| EGC | Experiments Ground Computer |
| SPA | Signal Processor Assembly |
| RM/MS&C | Redundancy Management/Moding |
| G | Giga (Billion) |
| V-A | Volt-Ampere |
| IUS | International Ultraviolet ExPlorer |
| LDEF | Long Duration ExPosure Facility |
| CDT | Command Descriptor Table |
| ECRA | Engineering Change Request/Authorization |