| Acronym | Meaning |
| HPI | High Performance Insulation |
| POP | Perpendicular-to-Orbit Plane |
| BDCR | Baseline Document Change Request |
| BP | C |
| OTOS | Orbit-to-Orbit Stage |
| GM | Geometric Mean |
| PLS | Payload Systems |
| TOF | Test Operations Facility |
| CPE | I Computer Program End Item |
| OOMM | Organizational Operations And Maintenance Manual |