| Acronym | Meaning |
| TTC | Tunnel Thermal Control |
| WTT | Wind Tunnel Test |
| PID | Payload Insertion Device |
| PACS | Pointing And Attitude Control System |
| SA | Site Activation |
| POST | Payload Operations SuPport Team |
| QLDS | Quick Look Data Station |
| MPAD | Mission Planning And Analysis Division (JSC) |
| DCOP | Detailed Checkout Procedures |
| CPD | R Contractor's Preliminary Design Review |