| Acronym | Meaning |
| DFRN | PRESSDifferential Pressure |
| GPTE | General Purpose Test Equipment |
| TPM | 1Terminal Phase Midcourse #1 |
| EMEC | Electromagnetic Effects Compatibility |
| T/W | Thrust-to-Weight |
| CIAP | Climatic Impact Assessment Program |
| CDM | Communications/Data Manager |
| NMAB | National Materials Advisory Board |
| OXY | Oxygen |
| ISS | Instruction Summary Sheet |