| Acronym | Meaning |
 | ALAE | Atmospheric Lyman-Alpha Emissions |
| CDDT | Countdown Demonstration Test |
| CFA | Harvard-Smithsonian Center For Astrophysics |
| AFWTR | USAF's WTR |
| ACRV | Assured Crew Return Vehicle |
| SIXA | Silicon X-ray Array |
| HMC | Halley Multicolor Camera |
| DARA | Deutsche Agentur Fuer Raumfahrtangelegenheiten |
| PC | ParseC (usu. Pc) |
| SME | Solar Mesosphere Explorer |
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