| Acronym | Meaning |
 | RCI | Rodent Cage Interface |
| NSO | National Solar Observatory |
| INTELSAT | International Telecommunications Satellite |
| HJD | Helicentric Julian Date |
| ATM | Amateur Telescope Maker |
| HR | Hertzsprung-Russell |
| CCSDS | Consultative Committee For Space Data Systems |
| STS | Shuttle Transport System / Space Transportation System |
| NBS | National Bureau Of Standards |
| AC | Atlas Centaur |
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