| Acronym | Meaning |
 | TIG | Time Of (until) Ignition |
| FEM | Flight-Engineering Model |
| FUSE | Far Ultraviolet Spectroscopic Explorer |
| ACF | Automated Control Function |
| FWHM | Full Width At Half Maximum |
| MLS | Microwave Limb Sounder |
| KPNO | Kitt Peak National Observatory |
| AXAF | Advanced X-ray Astrophysics Facility |
| NLDP | National Launch Development Program |
| PI | Principal Investigator |
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