| Acronym | Meaning |
 | VLBI | Very Long Baseline Interferometer |
| LPS/CDS | LPS/Central Data Subsystem |
| FTIS | Flight Test Instrumentation System |
| MCA | Master ControlAssembly |
| PTIS | Program Test Input System |
| PU | Pickup |
| LS | Launch Sequence |
| SPOC | Shuttle Payload Operations Contractor |
| LESS | Leading Edge Structure Subsystem |
| TRA | Turnaround Requirements Analysis |
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