| Acronym | Meaning |
 | GEM | Giotto Extended Mission |
| ISRO | Indian Space Research Organisation |
| AAVSO | American Association Of Variable Star Observers |
| OMB | Office Of Management And Budget |
| SBIR | Small Business Innovation Research |
| CM | Center Of Mass |
| LPO | La Palma Observatory |
| JPL | Jet Propulsion Laboratory |
| GCVS | General Catalog Of Variable Stars |
| ASTER | Advanced Spaceborne Thermal Emission And Reflection |
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