| Acronym | Meaning |
| JP | Jet Propellant |
| S | Second |
| TMC | Test Monitoring Console |
| DPP | Data Processing System (Subsystern) |
| M | PTPMain Propulsion Test Program |
| MEC | Main Engine Controller |
| LUB | Lubricate |
| VVI | Vertical Velocity Indicator |
| IH/SR | Integration Hardware And Software Review |
| PIC | Payload Integration Committee |