| Acronym | Meaning |
 | COMSAT | Communications Satellite (Corporation) |
| PMC | Permanently Manned Capability |
| HD | Henry Draper Catalog Entry |
| UDMH | Unsymmetrical DiMethyl Hydrazine |
| WFF | Wallops Flight Facility |
| IMU | Inertial Measurement Unit |
| SEDS | Students For The Exploration And Development Of Space |
| HEAO | High Energy Astronomical Observatory |
| LMC | Large Magellanic Cloud |
| DFRF | Dryden Flight Research Facility |
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