| Acronym | Meaning |
| FP | Fine Pointing |
| VASI | Visual Approach Slope Indicator |
| POGO | Polar Orbiting GeophYsical Observatory |
| ENCD | Encode |
| SSC | Solid-Solution Cermet |
| IP | Instrumentation/pulse Code Modulation Master Unit Data Bus |
| ETR | Eastern Test Range (ESME Preferred) |
| HIU | Headset Interface Unit |
| PVWS | Planned Value Of Work Scheduled |
| ORD | Operational Ready Data |