| Acronym | Meaning |
| EAS | Equivalent Airspeed |
| MODS | Modifications |
| VLBI | Very Long Baseline Interferometer |
| MTGP | Monitor Table Generator Program |
| GDSD | Ground Data SYstems Division |
| PSAC | Presidential Scientific Advisory Committee |
| MD | Manual Disconnect |
| MDT | Mean Detonating Time |
| MDD | Mate/demate Device |
| RALPH | Reduction And Acquisition Of Lunar Pulse Heights |