| Acronym | Meaning |
| RM | Reference Mission |
| IP | Instrumentation/pulse Code Modulation Master Unit Data Bus |
| SRD | Shuttle Requirements Document |
| ROTI | Recording Optical Tracking Instrument |
| TSA | Test Start Approval |
| PTO | Participating Test Organizations |
| BPS | Bits Per Second |
| RSS | Rotating Service Structure |
| MX | Mmx Multiplex |
| TC | Tracking Camera |