| Acronym | Meaning |
 | CSI | Control Servo Input |
| DISC | Discone |
| SSS | Station Set Specification |
| TTCA | Thrust Translation Controller Assembly |
| DMA | Direct MemorY Access |
| DIDS | Defense Integrated Data System |
| SPC | Stored Program Command |
| MAR | Memory Address Register |
| SRPA | Spherical Retarding Potential Analyzer |
| MIL | GSFC Spaceflight Tracking And Data Network Station |
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