| Acronym | Meaning |
 | ECU | Electronic Coupling Unit |
| PLA | Parachute Location Aid |
| FWD | Forward |
| ACTS | (TOS) Advanced Communications Technology Satellite |
| RIS | Reporting Identification Symbols |
| VRF | Vertical Removal Fixture |
| GSFC | Goddard Space Flight Center |
| PDCS | Power Distribution And Control System (Subsystem) |
| STADAC | Station Data Acquisition And Control |
| STADAN | Satellite Tracking And Data Acquisition Network |
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