| Acronym | Meaning |
 | EFA | Experiment Flight Applications |
| OBC | Onboard Computer |
| FACO | Fabrication And Acceptance Checkout |
| EPD | Emergency Procedures Document |
| U/O | Used On |
| PET | Phase Elapsed Time |
| GTU | Glycol Trim Unit |
| GRID | Graphic Retrieval And Information Display |
| GCDC | Ground Checkout Display And Control |
| MCCC | Mission Control And Computing Center |
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