| Acronym | Meaning |
 | RHC | Rotational Hand Controller |
| NSSDC | National Space Science Data Center |
| LEM | Lunar Excursion Module |
| USMC | United States Marine Corps |
| SME | Solar Mesosphere Explorer |
| USML | United States Microgravity Laboratory |
| MOPITT | Measurements Of Pollution In The Troposphere |
| CCAFS | Cape Canaveral Air Force Station |
| VLF | Very Low Frequency |
| OGO | Orbiting Geosurvey Observatories |
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