| Acronym | Meaning |
| MSC | Moding Sequencing And Control |
| MCP | Master Change Proposal |
| PS | Payload Station |
| HWWS | Hyperfiltration Wash Water Recovery System |
| CB/DC | Circuit Breaker (dc Only) |
| BTR | Burn Time Remaining |
| SSM | Systems Support Module |
| CIR | Circle |
| TIFS | Total In-Flight Simulator |
| STIL | Software Test And Integration Laboratory |