| Acronym | Meaning |
| HRT | High Resolution Tracker |
| HDS | Hardware DescriPtion Sheet |
| MSN | Mission |
| MAC | Maximum Allowable Concentration |
| DRSS | Discrepancy Report SquawkSheet |
| CSR | Crew Station Review |
| OPPL | Orbiter Project Parts List |
| CAU | Command Acquisition Unit |
| MHZ | Megahertz (Megacycles Per Second) |
| NAR | Numerical Analysis Research |