| Acronym | Meaning |
 | SYNCOM | Hughes Spin Stabilized Spacecraft |
| PTB | Payload Timing Buffer |
| SPOC | Shuttle Payload Operations Contractor |
| ISTB | Integrated Subsystem Test Bed |
| JETS | Joint Electronics Type (Designation) System |
| EDLN | Engineering DeveloPment Logic Network |
| LK | Lock |
| DC | DCAADefense Contract Audit Agency |
| FOR | Flight Operations Review |
| PR | Procurement Regulation |
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