| Acronym | Meaning |
| NSR | National Slow Rate |
| HF | Horizontal Flight |
| CPCL | Computer Program Control Library |
| JED | Julian Ephemeris Data |
| CADS | Command And Data Simulator |
| GETIL | Abort Burn) |
| PORR | Preliminary Operat Ons Requirements Review |
| SSRN | System Software Reference Number |
| R&PM | Research And Program Management |
| PM | Power Management And Distribution |