| Acronym | Meaning |
| HS-C | Hamilton Standard CO Absorbent Material |
| GCI | Ground Controlled Interception |
| OC | Overcurrent |
| EXT | Extension |
| INSTRUM | Instrumentation Subsystem |
| OMB | Office Of Management And Budget |
| PRT | PulseRepetitionTime |
| MSV | Monitored Sine Vibration (Test) |
| HPPF | Horizontal Payloads Processing Facility |
| TRS | Time Reference System |