| Acronym | Meaning |
 | AOA | Abort Once Around (shuttle Abort Plan) |
| DOD | Department Of Defense |
| CCD | Charge-Coupled Device |
| TOMS | Total Ozone Mapping Spectrometer |
| GC | Galactic Center |
| GCVS | General Catalog Of Variable Stars |
| PASS | Primary Avionics Software System |
| NBS | National Bureau Of Standards |
| KPNO | Kitt Peak National Observatory |
| HR | Hertzsprung-Russell |
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