| Acronym | Meaning |
 | SPARTAN | Shuttle Pointed Autonomous Research Tool For Astronomy |
| TOMS | Total Ozone Mapping Spectrometer |
| PMC | Permanently Manned Capability |
| GSC | Guide Star Catalog |
| SAMS | Space Acceleration Measurement System |
| LFC | Large Format Camera |
| IOTA | International Occultation Timing Association |
| CIRRIS | Cryogenic InfraRed Radiance Instrument For Shuttle |
| CM | Center Of Mass |
| VPF | Vertical Processing Facility |
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