| Acronym | Meaning |
| SHF | Super High Frequency |
| LST | Local Standard Time |
| PRCB | ProgramRequirementsControlBoard |
| OAMS | Orbital Attitude And Maneuvering System |
| IUS | Inertial UPper Stage (was Interim UPper Stage) |
| QATT | Qualification For Acceptance Thermal Testing |
| LST | Liquid Storage Tank |
| SOL | Squelch |
| CO | Change Order |
| SVA&C | Shuttle Vehicle Assembly And Checkout |