| Acronym | Meaning |
 | ERA | Electrical Replaceable Assembly |
| CIM | Computer Input Multiplexer |
| GPL | General Purpose Laboratory |
| IWG | Interface Working Group |
| LOS | Loss Of Signal |
| PRTLS | Powered Return To Launch Site |
| D | LSC Data Link Transmission Repeater |
| SIL | Sound Interference Level |
| MSOCC | Multisatellite Operations Control Center |
| PT | Advanced Planning And Technology Office (KSC Dir.) |
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