| Acronym | Meaning |
 | SMM | Solar Maximum Mission |
| IC | Index Catalog |
| NORAD | NORth American Aerospace Defense |
| PDS | Planetary Data System |
| TM | Thematic Mapper |
| ASTRO | Space Astrophysics Laboratory |
| DLR | Deutsche Forschungsanstalt Fuer Luft- Und Raumfahrt |
| FTS | Flight Telerobotic Servicer |
| NSSDC | National Space Science Data Center |
| RAL | Rutherford-Appleton Laboratory |
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