| Acronym | Meaning |
| HE | High Energy Astrophysics |
| DCR | Design Concern Report |
| FCA | Functional Configuration Audit |
| CWA | Caution And Warning Annunciator |
| IPS | IRAN Inspection And Repairs As Necessary |
| GN&C | Guidance |
| SV | Selenoid Valve |
| T+ | Time Postintegration |
| SSUS | Spinning Solid Upper Stage |
| PGA | Power Generating Assembly |