| Acronym | Meaning |
 | TX | Transmit Channel |
| SFEX | Solar Flare X-ray Polarimeter |
| CK | Check |
| DCS | Detail Checkout Specification(s) |
| LHE | Liquid Helium |
| MSFC | Marshall Space Flight Center |
| LE | Launch Escape |
| DDTS | Dynamic Docking Test System |
| OPSS | Orbital Propellant Storage Subsystem |
| ODRAN | Operational Drawing Revision Advance Notice |
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