| Acronym | Meaning |
| ELEC | Electric |
| LFOP | Landing And Ferry Operations Panel |
| RTG | Radioisotope Thermoelectric Generator |
| RST | Recessed Selectromatic Terminal |
| SDR | Software Design Review |
| SCF | Statistical Collection File |
| GSA | General Services Administration |
| MPUTER | SimumPuter Simulator |
| GOWG | GrGOWGGround Operations Working Group |
| HIPO | Hierarchical Input/Process Output |