| Acronym | Meaning |
 | ASP | Astronomical Society Of The Pacific |
| CSM | Command And Service Module |
| EMU | Extravehicular Mobility Unit |
| HJD | Helicentric Julian Date |
| CZCS | Coastal Zone Color Scanner |
| TAU | Thousand Astronomical Unit |
| BC | Bolometric Correction |
| FRR | Flight-Readiness Review |
| IUS | Inertial Upper Stage |
| LEDA | On-line Earthnet Data Access |
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