| Acronym | Meaning |
 | ACE | Advanced Composition Explorer |
| USML | United States Microgravity Laboratory |
| ESRIN | European Space Research Institute |
| STSDAS | Space Telescope Science Data Analysis System |
| OTV | Orbital Transfer Vehicle |
| NAS | Numerical Aerodynamic Simulation |
| LN2 | Liquid Nitrogen |
| GISS | Goddard Institute For Space Studies |
| NICMOS | Near Infrared Camera/Multi Object Spectrometer |
| CNES | Centre National D'Etude Spatiales |
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