| Acronym | Meaning |
 | ELDO | European Launcher Development Organisation |
| SPARTAN | Shuttle Pointed Autonomous Research Tool For Astronomy |
| PPM | Positions And Proper Motions (catalog) |
| SEP | Societe Europeenne De Propulsion |
| PSF | Point Spread Function |
| CMCC | Central Mission Control Centre |
| SSPO | Space Shuttle Program Office |
| SWF | ShortWave Fading |
| USMC | United States Marine Corps |
| IAPPP | International Amateur/Professional Photoelectric Photometry |
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