| Acronym | Meaning |
 | APS | Acquisition Processor Subsystem |
| PIIN | Procurement Instrument Identification Number |
| ESD | Experiment Systems Division |
| G&A | General And Administrative |
| POE | Proximity OPticai Device |
| MEL | Minimum Equipment List |
| ORD | Operational Readiness Date |
| FPS2 | Feet Per Second Squared |
| PAO | Public Affairs Office (Officer) |
| DIF | Difference |
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