| Acronym | Meaning |
| PIC | Pyro Initiator Controller |
| DUM | Dummy |
| GTA | Ground Test Access |
| DIH | Discrate Input High |
| RESID | Residual |
| MOPR | Mission Operations Planning Room |
| NC1 | Nominal Correction 1 (Phasing Maneuver) |
| CVAS | Configuration Verification Accounting System |
| LVLH | Local Vertical/Local Horizontal |
| LA | Launch Aft |