| Acronym | Meaning |
| EDP | Electonic Data Processing |
| R | BARRadius Vector Axis |
| TSRA | Total System Requirements Analysis |
| RALPH | Reduction And Acquisition Of Lunar Pulse Heights |
| MAL | Material Allowance List |
| SSME | Space Shuttle Main Engine |
| R&CC | Recorder And Communication Control |
| NH3 | ANH3 Ammonia |
| ITE | Integration Test Equipment |
| FRCS | Forward Reaction Control System (Subsystem) |