| Acronym | Meaning |
| OMRC | Operational Maintenance Requirements Catalog |
| SCFM | Standard Cubic Feet Per Minute |
| IUE | Interface Unit Error Count Table |
| P&M | Planetary Mission |
| SOFT | Space Operations And Flight Techniques |
| MU | Master Unit |
| EAC | Energy Absorbing Capacity |
| OMR | Orbiter Management Review |
| SUMC | Space Ultrareliable Modular Computer |
| HF | Hydrogen Fill |