| Acronym | Meaning |
| MTS | Magnetic Tape Station (System) |
| GDA | Gimbal Drive Actuator/Assembly |
| S/C | Signal Conditioner |
| H | /'EHeat Exchanger |
| EMU | Extravehicular Mobility Unit |
| TO | Operations Management (TS) |
| ISP | Initial Specific Impulse |
| SBP | San Luis Obispo (TACAN Station) |
| PO | PurchaseOrder |
| SOP | Subsystem Operating Program |